Iman Roqan

Research output

Research output per year 2006 2016 2017 2018 2019 2020 2021 2023

• 91 Article
• 11 Conference contribution
• 1 Chapter
• 1 Patent

Research output per year

Research output per year

Search results

• 2023

  Enhanced Photoresponsivity UV-C Photodetectors Using a p-n Junction Based on Ultra-Wide-Band Gap Sn-Doped β-Ga₂O₃ Microflake/MnO Quantum Dots

  Alwadai, N., Alharbi, Z., Alreshidi, F., Mitra, S., Xin, B., Alamoudi, H., Upadhyaya, K., Hedhili, M. N. & Roqan, I. S., Mar 8 2023, In: ACS Applied Materials and Interfaces. 15, 9, p. 12127-12136 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Photodetector 100%
  • Energy Gap 100%
  • Ultra Wide Band 100%
  • Heterojunction 100%
  • Photosensor 100%
  2 Scopus citations

• Strain-Engineering of Electronic and Magnetic Properties of Chemically Passivated Zigzag GaN Nanoribbons: An Ab Initio Study

  Gudelli, V. K., Alaal, N. & Roqan, I. S., May 4 2023, In: ACS Applied Engineering Materials.

  Research output: Contribution to journal › Article › peer-review

  • Magnetic Property 100%
  • Electronic Property 100%
  • Nanoribbon 100%
  • Strain 100%
  • Magnetic Properties 100%
• 2022

  Carbon Nitride Thin Film-Sensitized Graphene Field-Effect Transistor: A Visible-Blind Ultraviolet Photodetector

  Palanisamy, T., Mitra, S., Batra, N., Smajic, J., Emwas, A-H., Roqan, I. S. & Da Costa, P. M. F. J., Apr 27 2022, In: Advanced Materials Interfaces. p. 2200313

  Research output: Contribution to journal › Article › peer-review

  • Carbon Nitride 100%
  • Thin Films 87%
  • Photometer 62%
  • Graphene 50%
  • Visible Spectrum 25%
  3 Scopus citations

• Phonon-limited mobility and quantum transport in fluorinated diamane MOSFETs from the first-principles calculations

  Dong, L., Li, P., Li, C., Roqan, I. S., Peng, B., Xin, B. & Liu, W., Dec 26 2022, In: Carbon.

  Research output: Contribution to journal › Article › peer-review

  • Phonon 100%
  • Compound Mobility 100%
  • Metal-Oxide-Semiconductor Field-Effect Transistor 100%
  • First Principle 75%
  • Application 75%
  1 Scopus citations
• 2021

  A solid-liquid two-phase precipitation method for the growth of fullerene (C-60) nanowires

  Fan, X., Geng, J., Soin, N., Chakrabarti, S., Mitra, S., Roqan, I. S., Li, H., Babatunde, M. O. & Baldwin, A., 2021, In: CRYSTENGCOMM.

  Research output: Contribution to journal › Article › peer-review

  • Precipitation (Chemical) 100%
  • Nanowire 80%
  • Procedure 80%
  • Solvent 80%
  • Nanowires 80%
  1 Scopus citations

• Domain-Size-Dependent Residual Stress Governs the Phase-Transition and Photoluminescence Behavior of Methylammonium Lead Iodide

  Lee, K., Turedi, B., Giugni, A., Lintangpradipto, M. N., Zhumekenov, A. A., Alsalloum, A., Min, J-H., Dursun, I., Naphade, R., Mitra, S., Roqan, I. S., Ooi, B. S., Mohammed, O. F., Di Fabrizio, E. M., Cho, N. & Bakr, O., Feb 11 2021, In: Advanced Functional Materials. p. 2008088

  Research output: Contribution to journal › Article › peer-review

  • Photoluminescence 100%
  • Phase Transition 100%
  • Reaction Temperature 60%
  • Crystalline Material 60%
  • Temperature 60%
  7 Scopus citations

• Enhanced-Performance Self-Powered Solar-Blind UV-C Photodetector Based on n-ZnO Quantum Dots Functionalized by p-CuO Micro-pyramids

  Alwadai, N. M., Mitra, S., Hedhili, M. N., Alamoudi, H., Xin, B., Alaal, N. & Roqan, I. S., Jul 8 2021, In: ACS Applied Materials & Interfaces.

  Research output: Contribution to journal › Article › peer-review

  • Quantum Dot 100%
  • Photosensor 58%
  • ZnO 50%
  • Solution 16%
  • Catalyst 16%
  35 Scopus citations

• Evidence of Carrier Localization in AlGaN/GaN based Ultraviolet Multiple Quantum Wells with Opposite Polarity Domains Provided by Nanoscale Imaging

  Cui, M., Guo, W., Xu, H., Jiang, J., Chen, L., Mitra, S., Roqan, I. S., Jiang, H., Li, X. & Ye, J., Feb 25 2021, In: physica status solidi (RRL) – Rapid Research Letters.

  Research output: Contribution to journal › Article › peer-review

  • Multiple Quantum Well 100%
  • Domains 100%
  • Polarity 75%
  • UV/VIS Spectroscopy 50%
  • Nanoscale 25%
  3 Scopus citations

• Giant clam inspired high-speed photo-conversion for ultraviolet optical wireless communication

  Subedi, R. C., Rossbach, S., Kang, C. H., Alkhazragi, O., Sun, X., Holguin Lerma, J. A., Mitra, S., Roqan, I. S., Behzad, A. R., Sougrat, R., Ng, T. K., Bradley, D., Duarte, C. M. & Ooi, B. S., Apr 22 2021, In: Optical Materials Express.

  Research output: Contribution to journal › Article › peer-review

  • Mantle 100%
  • Light 100%
  • High Speed 100%
  • Manipulator 50%
  • Photoluminescence 50%
  2 Scopus citations

• Manipulation of hot carrier cooling dynamics in two-dimensional Dion–Jacobson hybrid perovskites via Rashba band splitting

  Yin, J., Naphade, R., Maity, P., Gutierrez Arzaluz, L., Almalawi, D. R., Roqan, I. S., Bredas, J-L., Bakr, O. & Mohammed, O. F., Jun 28 2021, In: Nature Communications. 12, 1

  Research output: Contribution to journal › Article › peer-review

  • Hot Carrier 100%
  • Cooling 85%
  • Spin 57%
  • Perovskites 57%
  • Splitting 42%
  31 Scopus citations

• Micropump Fluidic Strategy for Fabricating Perovskite Microwire Array-Based Devices Embedded in Semiconductor Platform

  Xin, B., Pak, Y., Shi, M., Mitra, S., Zheng, X., Bakr, O. & Roqan, I. S., Jan 2021, In: Cell Reports Physical Science. 2, 1, p. 100304

  Research output: Contribution to journal › Article › peer-review

  • Perovskites 100%
  • Microchannel 66%
  • Microfluidics 66%
  • Semiconductor Material 50%
  • Micropump 33%
  10 Scopus citations
• 2020

  Dark-current reduction accompanied photocurrent enhancement in p-type MnO quantum-dot decorated n-type 2D-MoS2-based photodetector

  Pak, Y., Mitra, S., Alaal, N., Xin, B., Lopatin, S., Almalawi, D., Min, J-W., Kim, H., Kim, W., Jung, G-Y. & Roqan, I. S., Mar 16 2020, In: Applied Physics Letters. 116, 11, p. 112102

  Research output: Contribution to journal › Article › peer-review

  • Manganese Oxide 100%
  • Photosensor 100%
  • Quantum Dot 100%
  • Crystalline Material 66%
  • Solution 33%
  33 Scopus citations

• Density Functional Theory Studies of Zn12O12 Clusters Doped with Mg/Eu and Defect Complexes

  Aravindh, S. A., Roqan, I. S. & Alawadhi, H., Jan 11 2020, In: Journal of Cluster Science.

  Research output: Contribution to journal › Article › peer-review

  • Point Defect 100%
  • Spin Polarization 100%
  • Density Functional Theory Study 66%
  • ZnO 50%
  • Crystal Point Defect 50%
  3 Scopus citations

• Enhanced photo-response of WS2 photodetectors through interfacial defect engineering using TiO2 interlayer

  Pak, Y., Park, W., Alaal, N., Kumaresan, Y., Aravindh, S. A., Mitra, S., Xin, B., Min, J-W., Kim, H., Lim, N., Cho, B., Jung, G. Y., Hussain, M. M. & Roqan, I. S., Feb 26 2020, In: ACS Applied Electronic Materials.

  Research output: Contribution to journal › Article › peer-review

  • Titanium Dioxide 100%
  • Photodetector 27%
  • Photometer 27%
  • Performance 16%
  • Interfacial Defect 11%
  13 Scopus citations

• Enhanced UV emission of GaN nanowires functionalized by wider bandgap solution-processed p-MnO quantum dots

  Almalawi, D., Lopatin, S., Mitra, S., Flemban, T. H., Siladie, A-M., Gayral, B., Daudin, B. & Roqan, I. S., Jul 4 2020, In: ACS Applied Materials & Interfaces.

  Research output: Contribution to journal › Article › peer-review

  • Quantum Dot 100%
  • Nanowires 50%
  • Solution 16%
  • Electron Energy Loss Spectrometry 16%
  • Devices 16%
  6 Scopus citations

• GaN and InGaN nanowires prepared by metal-assisted electroless etching: Experimental and theoretical studies

  Devi, A. A. S., Xin, B., Mitra, S., Roqan, I. S. & Najar, A., Sep 25 2020, In: Results in Physics. 19, p. 103428

  Research output: Contribution to journal › Article › peer-review

  • Nanowire 100%
  • Nanowires 100%
  • Density Functional Theory 25%
  • Generalized Gradient Approximation 25%
  • Metal 25%
  9 Scopus citations

• Identifying Carrier Behavior in Ultrathin Indirect-Bandgap CsPbX 3 Nanocrystal Films for Use in UV/Visible-Blind High-Energy Detectors

  Xin, B., Alaal, N., Mitra, S., Subahi, A., Pak, Y., Almalawi, D., Alwadai, N. M., Lopatin, S. & Roqan, I. S., Oct 2 2020, In: Small. p. 2004513

  Research output: Contribution to journal › Article › peer-review

  • X Ray 100%
  • Energy Gaps (Solid State) 71%
  • X Ray Detector 71%
  • Band Gap 71%
  • Perovskites 42%
  33 Scopus citations

• Low-Temperature Crystallization Enables 21.9% Efficient Single-Crystal MAPbI3 Inverted Perovskite Solar Cells

  Alsalloum, A. Y., Turedi, B., Zheng, X., Mitra, S., Zhumekenov, A. A., Lee, K., Maity, P., Gereige, I., AlSaggaf, A., Roqan, I. S., Mohammed, O. F. & Bakr, O., Jan 31 2020, In: ACS Energy Letters. p. 657-662 6 p.

  Research output: Contribution to journal › Article › peer-review

  • Perovskite Solar Cell 100%
  • Single Crystalline Solid 40%
  • Liquid Film 40%
  • Single Crystal 40%
  • Liquid Films 40%

• Meso -Zn(ii)porphyrins of tailored functional groups for intensifying the photoacoustic signal

  Yasin, A., Nair, V. S., Devi, A. A. S., Sarkar, S. M., Hatamimoslehabadi, M., Mitra, S., Ab Rahim, M. H., La, J., Roqan, I. S., Yusoff, M. M., Yelleswarapu, C. S. & Jose, R., May 19 2020, In: Journal of Materials Chemistry C. 8, 25, p. 8546-8559 14 p.

  Research output: Contribution to journal › Article › peer-review

  • Molecule 100%
  • Molecules 100%
  • Porphyrin 85%
  • Density Functional Theory 42%
  • Absorption Coefficient 42%
  5 Scopus citations

• Modulating Electronic Structures of Armchair GaN Nanoribbons by Chemical Functionalization under an Electric Field Effect

  Alaal, N. & Roqan, I. S., Jan 8 2020, In: ACS Omega. 5, 2, p. 1261-1269 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Nanoribbon 100%
  • Dioxygen 25%
  • Electric Field 25%
  • Electronic Property 25%
  • Electric Fields 25%
  4 Scopus citations

• Nanoporous GaN/n-type GaN: a cathode structure for ITO-free perovskite solar cells

  Lee, K., Min, J-W., Turedi, B., Alsalloum, A. Y., Min, J-H., Kim, Y. J., Yoo, Y. J., Oh, S., Cho, N., Subedi, R. C., Mitra, S., Yoon, S. E., Kim, J. H., Park, K., Chung, T-H., Jung, S. H., Baek, J-H., Song, Y. M., Roqan, I. S., Ng, T. K., & 2 othersOoi, B. S. & Bakr, O., Sep 17 2020, In: ACS Energy Letters.

  Research output: Contribution to journal › Article › peer-review

  • Gallium Nitride 100%
  • Perovskite Solar Cell 100%
  • Cathode 60%
  • Electron Transfer 40%
  • Indium Tin Oxide 40%
  19 Scopus citations

• Optimized performance III-nitride-perovskite-based heterojunction photodetector via asymmetric electrode configuration

  Mitra, S., Muhammed, M. M., Alwadai, N. M., Almalawi, D. R., Xin, B., Pak, Y. & Roqan, I. S., Feb 11 2020, In: RSC Advances. 10, 10, p. 6092-6097 6 p.

  Research output: Contribution to journal › Article › peer-review

  • Perovskites 100%
  • Photodetector 66%
  • Electrode 66%
  • Fast Response 33%
  • Nitride 33%
  1 Scopus citations

• Quantifying the Transverse-Electric-Dominant 260 nm Emission from Molecular Beam Epitaxy-Grown GaN-Quantum-Disks Embedded in AlN Nanowires: A Comprehensive Optical and Morphological Characterization

  Subedi, R. C., Min, J., Mitra, S., Li, K-H., Ajia, I. A., Stegenburgs, E., Anjum, D. H., Conroy, M., Moore, K., Bangert, U., Roqan, I. S., Ng, T. K. & Ooi, B. S., Sep 1 2020, In: ACS Applied Materials & Interfaces.

  Research output: Contribution to journal › Article › peer-review

  • Emission 100%
  • Molecular Beam Epitaxy 66%
  • Growth 66%
  • Nanowires 66%
  • Strain 66%
  5 Scopus citations

• Subquantum-Well Influence on Carrier Dynamics in High Efficiency DUV Dislocation-Free AlGaN/AlGaN-Based Multiple Quantum Wells

  Ajia, I. A., Almalawi, D., Lu, Y., Lopatin, S., Li, X., Liu, Z. & Roqan, I. S., May 26 2020, In: ACS Photonics. 7, 7, p. 1667-1675 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Dislocation 100%
  • Multiple Quantum Well 66%
  • Computer Simulation 33%
  • Internal Quantum Efficiency 33%
  • Mechanisms 33%
  5 Scopus citations

• Time–Energy Quantum Uncertainty—Quantifying the Effectiveness of Surface Defect Passivation Protocols for Low-Dimensional Semiconductors

  Alfaraj, N., Alghamdi, W., Alawein, M., Ajia, I. A., Priante, D., Janjua, B., Sun, H., Ng, T. K., Ooi, B. S., Roqan, I. S. & Li, X., Jan 22 2020, In: ACS Applied Electronic Materials.

  Research output: Contribution to journal › Article › peer-review

  • Surface Passivation 100%
  • Chemical Passivation 25%
  • Passivation 25%
  • Passivity 25%
  • Energy 18%
  4 Scopus citations

• Titanium Carbide MXene Nucleation Layer for Epitaxial Growth of High-Quality GaN Nanowires on Amorphous Substrates

  Prabaswara, A., Kim, H., Min, J-W., Subedi, R. C., Anjum, D. H., Davaasuren, B., Moore, K., Conroy, M., Mitra, S., Roqan, I. S., Ng, T. K., Alshareef, H. N. & Ooi, B. S., Feb 3 2020, In: ACS Nano. 14, 2, p. 2202-2211 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Nucleation 100%
  • MXene 88%
  • Nanowires 88%
  • Molecular Wire 88%
  • Substrates 33%
  12 Scopus citations
• 2019

  Catalyst-Free Vertical ZnO-Nanotube Array Grown on p-GaN for UV-Light-Emitting Devices

  Alwadai, N. M., Ajia, I. A., Janjua, B., Flemban, T. H., Mitra, S., Wehbe, N., Wei, N., Lopatin, S., Ooi, B. S. & Roqan, I. S., Jul 25 2019, In: ACS Applied Materials & Interfaces. 11, 31, p. 27989-27996 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Nanotube 100%
  • ZnO 83%
  • Ultraviolet Radiation 83%
  • Light-Emitting Diode 66%
  • Light Emitting Diode 66%
  19 Scopus citations

• Light-Induced Self-Assembly of Cubic CsPbBr3 Perovskite Nanocrystals into Nanowires

  Liu, J., Song, K., Shin, Y., Liu, X., Chen, J., Yao, K., Pan, J., Yang, C., Yin, J., Xu, L-J., Yang, H., El-Zohry, A., Xin, B., Mitra, S., Hedhili, M. N., Roqan, I. S., Mohammed, O. F., Han, Y. & Bakr, O., Apr 22 2019, In: Chemistry of Materials. 31, 17, p. 6642-6649 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Light 100%
  • Perovskite Nanocrystal 85%
  • Perovskite 71%
  • Perovskites 71%
  • CsPbBr3 57%
  98 Scopus citations

• Novel P-Type Wide Bandgap Manganese Oxide Quantum Dots Operating at Deep UV Range for Optoelectronic Devices

  Mitra, S., Pak, Y., Alaal, N., Hedhili, M. N., Almalawi, D. R., Alwadai, N. M., Loganathan, K., Kumarasan, Y., Lim, N., Jung, G. Y. & Roqan, I. S., Aug 8 2019, In: Advanced Optical Materials. 7, 21, p. 1900801

  Research output: Contribution to journal › Article › peer-review

  • UV/VIS Spectroscopy 100%
  • Device 66%
  • Wide Bandgap Semiconductor 66%
  • Optoelectronics 33%
  • Quantum Dot 33%
  25 Scopus citations

• Self-Patterned CsPbBr3 Nanocrystals for High-Performance Optoelectronics

  Xin, B., Pak, Y., Mitra, S., Almalawi, D., Alwadai, N. M., Zhang, Y. & Roqan, I. S., Jan 8 2019, In: ACS Applied Materials & Interfaces. 11, 5, p. 5223-5231 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Liquid Films 100%
  • Optoelectronics 75%
  • Perovskites 50%
  • Nanocrystals 50%
  • CsPbBr3 50%
  66 Scopus citations

• Solar-Blind Self-Powered Photodetector Using Solution-Processed Amorphous Core-Shell Gallium Oxide Nanoparticles.

  Mitra, S., Pak, Y., Xin, B., Almalawi, D. R., Wehbe, N. & Roqan, I. S., Sep 20 2019, In: ACS Applied Materials & Interfaces. 11, 42, p. 38921-38928 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Solution 100%
  • Photosensor 100%
  • Nanoparticle 50%
  • Oxide 50%
  • Gallium 50%
  41 Scopus citations

• Structural, magnetic and electronic properties of two dimensional NdN: an ab initio study

  Devi, A. A. S. & Roqan, I. S., Nov 4 2019, In: RSC Advances. 9, 61, p. 35917-35923 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Liquid Films 100%
  • Doping (Additives) 60%
  • Vacancy 60%
  • Film Thickness 40%
  • Utilization 40%

• Three-dimensional band diagram in lateral polarity junction III-nitride heterostructures

  Guo, W., Mitra, S., Jiang, J., Xu, H., Sheikhi, M., Sun, H., Tian, K., Zhang, Z., Jiang, H., Roqan, I. S., Li, X. & Ye, J., Aug 13 2019, In: Optica. 6, 8, p. 1058

  Research output: Contribution to journal › Article › peer-review

  • Band Diagram 100%
  • Nitride 80%
  • Polarity 60%
  • Plane 60%
  • Heterostructures 40%
  11 Scopus citations

• Ultraviolet-to-blue color-converting scintillating-fibers photoreceiver for 375-nm laser-based underwater wireless optical communication

  Kang, C. H., Trichili, A., Alkhazragi, O., Zhang, H., Subedi, R. C., Guo, Y., Mitra, S., Shen, C., Roqan, I. S., Ng, T. K., Alouini, M-S. & Ooi, B. S., Oct 8 2019, In: Optics Express. 27, 21, p. 30450

  Research output: Contribution to journal › Article › peer-review

  • Optical Communication 100%
  • Communication Link 66%
  • Bandwidth 66%
  • Large Area 66%
  • Laser 66%
  44 Scopus citations

• Unambiguously Enhanced Ultraviolet Luminescence of AlGaN Wavy Quantum Well Structures Grown on Large Misoriented Sapphire Substrate

  Sun, H., Mitra, S., Subedi, R. C., Zhang, Y., Guo, W., Ye, J., Shakfa, M. K., Ng, T. K., Ooi, B. S., Roqan, I. S., Zhang, Z., Dai, J., Chen, C. & Long, S., Jan 1 2019, In: Advanced Functional Materials. 29, 48, p. 1905445

  Research output: Contribution to journal › Article › peer-review

  • Sapphire 100%
  • Gallium 50%
  • Multiple Quantum Well 50%
  • Substrates 50%
  • Accumulations 50%
  122 Scopus citations
• 2018

  Analysis on the energetics, magnetism and electronic properties in a 45° ZnO grain boundary doped with Gd

  Sasikala Devi, A. A. & Roqan, I. S., 2018, In: RSC Advances. 8, 25, p. 13850-13856 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • ZnO 100%
  • Magnetism 100%
  • Energetics 100%
  • Grain Boundaries 100%
  • Electronic Property 100%
  10 Scopus citations

• Carrier dynamics of InxGa1-xN/GaN multiple quantum wells grown on (−201) β-Ga2O3 for bright vertical light emitting diodes

  Mumthaz Muhammed, M., Xu, J., Wehbe, N. & Roqan, I. S., May 29 2018, In: Optics Express. 26, 12, p. 14869

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Photoluminescence 100%
  • Quantum Well 100%
  • Secondary Ion Mass Spectrometry 100%
  • Scanning Transmission Electron Microscopy 50%
  • Nitride Compound 50%
  6 Scopus citations

• Extremely reduced dielectric confinement in two-dimensional hybrid perovskites with large polar organics

  Cheng, B., Li, T-Y., Maity, P., Wei, P-C., Nordlund, D., Ho, K-T., Lien, D-H., Lin, C-H., Liang, R-Z., Miao, X., Ajia, I. A., Yin, J., Sokaras, D., Javey, A., Roqan, I. S., Mohammed, O. F. & He, J-H., Nov 15 2018, In: Communications Physics. 1, 1

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Perovskites 100%
  • Permittivity 57%
  • Dielectrics 57%
  • Confinement 57%
  • Dielectric Material 57%
  105 Scopus citations

• Freestanding patterned polycrystalline GaN substrate by a straightforward and affordable technique

  Zainal, N., Samsudin, M. E. A., Taib, M. I. M., Ahmad, M. A., Ariff, A., Alwadai, N. M. & Roqan, I. S., Jul 25 2018, In: Materials Science in Semiconductor Processing. 88, p. 40-44 5 p.

  Research output: Contribution to journal › Article › peer-review

  • Surface 100%
  • Solution 33%
  • Annealing 33%
  • Inclusion 33%
  • Raman Spectroscopy 33%
  2 Scopus citations

• GaN/AlGaN multiple quantum wells grown on transparent and conductive (-201)-oriented β-Ga₂O₃ substrate for UV vertical light emitting devices

  Ajia, I. A., Yamashita, Y., Lorenz, K., Muhammed, M. M., Spasevski, L., Almalawi, D., Xu, J., Iizuka, K., Morishima, Y., Anjum, D. H., Wei, N., Martin, R. W., Kuramata, A. & Roqan, I. S., Aug 20 2018, In: Applied Physics Letters. 113, 8, 082102.

  Research output: Contribution to journal › Article › peer-review

  • Quantum Well 100%
  • Scanning Transmission Electron Microscopy 33%
  • Sapphire 33%
  • Photoluminescence 33%
  • Devices 33%
  40 Scopus citations

• Generated Carrier Dynamics in V-Pit-Enhanced InGaN/GaN Light-Emitting Diode

  Ajia, I. A., Edwards, P. R., Pak, Y., Belekov, E., Roldan, M. A., Wei, N., Liu, Z., Martin, R. W. & Roqan, I. S., Mar 21 2018, In: ACS Photonics. 5, 3, p. 820-826 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Light-Emitting Diode 100%
  • Light Emitting Diode 100%
  • Threading Dislocation 50%
  • Defects 50%
  • Quantum Wells 50%
  55 Scopus citations

• Highly Stable and Ultrafast Hydrogen Gas Sensor Based on 15 nm Nanogaps Switching in a Palladium-Gold Nanoribbons Array

  Pak, Y., Jeong, Y., Alaal, N., Kim, H., Chae, J., Min, J-W., Devi, A. A. S., Mitra, S., Lee, D. H., Kumaresan, Y., Park, W., Kim, T-W., Roqan, I. S. & Jung, G-Y., Dec 27 2018, In: Advanced Materials Interfaces. 6, 4, p. 1801442

  Research output: Contribution to journal › Article › peer-review

  • Palladium 100%
  • Sensor 100%
  • Nanoribbon 75%
  • Expansion 50%
  • Gas Sensor 25%
  17 Scopus citations

• High-Performance solar-blind flexible Deep-UV photodetectors based on quantum dots synthesized by femtosecond-laser ablation

  Mitra, S., Devi, A. A. S., Das, G., Pak, Y., Ajia, I. A., Loganathan, K., Di Fabrizio, E. M. & Roqan, I. S., Mar 31 2018, In: Nano Energy. 48, p. 551-559 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Photometer 100%
  • Performance 57%
  • Laser Ablation 42%
  • ZnO 28%
  • Materials Degradation 28%
  69 Scopus citations

• Scalable integration of periodically aligned 2D-MoS₂ nanoribbon array

  Pak, Y., Kim, Y., Lim, N., Min, J. W., Park, W., Kim, W., Jeong, Y., Kim, H., Kim, K., Mitra, S., Xin, B., Kim, T. W., Roqan, I. S., Cho, B. & Jung, G. Y., Jul 1 2018, In: APL Materials. 6, 7, 076102.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Nanoribbon 100%
  • Application of Sensors 66%
  • Nanocrystalline Material 66%
  • Nanofabrication Process 33%
  • Material 33%
  9 Scopus citations

• Tuning the Electronic Properties of Hexagonal Two-Dimensional GaN Monolayers via Doping for Enhanced Optoelectronic Applications

  Alaal, N. & Roqan, I. S., Dec 21 2018, In: ACS Applied Nano Materials. 2, 1, p. 202-213 12 p.

  Research output: Contribution to journal › Article › peer-review

  • Doping Material 100%
  • Nitride 83%
  • Gallium 83%
  • Monolayer 66%
  • Molecular Dynamics 66%
  49 Scopus citations
• 2017

  A Photodetector Based on p-Si/n-ZnO Nanotube Heterojunctions with High Ultraviolet Responsivity

  Flemban, T. H., Haque, M., Ajia, I. A., Alwadai, N. M., Mitra, S., Wu, T. & Roqan, I. S., Oct 16 2017, In: ACS Applied Materials & Interfaces. 9, 42, p. 37120-37127 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Nanotube 100%
  • Photodetector 87%
  • Photometer 87%
  • Responsivity 62%
  • Time-Resolved Spectroscopy 37%
  82 Scopus citations

• Double Charged Surface Layers in Lead Halide Perovskite Crystals

  Sarmah, S. P., Burlakov, V. M., Yengel, E., Banavoth, M., Alarousu, E., El-Zohry, A. M., Yang, C., Alias, M. S., Zhumekenov, A. A., Saidaminov, M. I., Cho, N. C., Wehbe, N., Mitra, S., Ajia, I. A., Dey, S., Mansour, A., Abdelsamie, M., Amassian, A., Roqan, I. S., Ooi, B. S., & 3 othersGoriely, A., Bakr, O. & Mohammed, O. F., Feb 7 2017, In: Nano Letters. 17, 3, p. 2021-2027 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Perovskites 100%
  • Crystal 80%
  • Surface 80%
  • Crystalline Material 80%
  • Crystals 80%
  57 Scopus citations

• Enhanced Performance of MoS2 Photodetectors by Inserting an ALD-Processed TiO2 Interlayer

  Pak, Y., Park, W., Mitra, S., Devi, A. A. S., Loganathan, K., Kumaresan, Y., Kim, Y., Cho, B., Jung, G-Y., Hussain, M. M. & Roqan, I. S., Dec 4 2017, In: Small. 14, 5, p. 1703176

  Research output: Contribution to journal › Article › peer-review

  • Photosensor 100%
  • Molybdenum Sulfide 87%
  • Titanium Dioxide 75%
  • Electrode 37%
  • Metal 25%
  56 Scopus citations

• Fabrication and optical characterization of GaN waveguides on (-201)-oriented β - Ga₂O₃

  Awan, K. M., Muhammad, M. M., Sivan, M., Bonca, S., Roqan, I. S. & Dolgaleva, K., 2017, In: OPTICAL MATERIALS EXPRESS. 8, 1, p. 88-96 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Gallium Nitride 100%
  • Characterization 100%
  • Waveguide 100%
  • Gallium 100%
  • Fabrication 100%
  13 Scopus citations

• Fluctuations and Anharmonicity in Lead Iodide Perovskites from Molecular Dynamics Supercell Simulationss

  Carignano, M. A., Devi, A. A. S., Roqan, I. S., Even, J. & Katan, C., Sep 18 2017, In: The Journal of Physical Chemistry C. 121, 38, p. 20729-20738 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Perovskites 100%
  • Methylammonium 80%
  • Cation 60%
  • Anharmonicity 60%
  • Reaction Temperature 60%
  53 Scopus citations