Optical constants of CH3NH3PbBr3 perovskite thin films measured by spectroscopic ellipsometry

Mohd Sharizal Alias; Ibrahim Dursun; Makhsud I. Saidaminov; Elhadj Marwane Diallo; Pawan Mishra; Tien Khee Ng; Osman Bakr; Boon S. Ooi

doi:10.1364/OE.24.016586

Optical constants of CH3NH3PbBr3 perovskite thin films measured by spectroscopic ellipsometry

Mohd Sharizal Alias, Ibrahim Dursun, Makhsud I. Saidaminov, Elhadj Marwane Diallo, Pawan Mishra, Tien Khee Ng, Osman Bakr, Boon S. Ooi

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Abstract

The lack of optical constants information for hybrid perovskite of CH3NH3PbBr3 in thin films form can delay the progress of efficient LED or laser demonstration. Here, we report on the optical constants (complex refractive index and dielectric function) of CH3NH3PbBr3 perovskite thin films using spectroscopic ellipsometry. Due to the existence of voids, the refractive index of the thin films is around 8% less than the single crystals counterpart. The energy bandgap is around 2.309 eV as obtained from photoluminescence and spectrophotometry spectra, and calculated from the SE analysis. The precise measurement of optical constants will be useful in designing optical devices using CH3NH3PbBr3 thin films.

Original language	English (US)
Pages (from-to)	16586
Journal	Optics Express
Volume	24
Issue number	15
DOIs	https://doi.org/10.1364/OE.24.016586
State	Published - Jul 14 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: King Abdulaziz City for Science and Technology (KACST) (KACST TIC R2-FP-008); King Abdullah University of Science and Technology (KAUST) (BAS/1/1614-01-01).

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@article{0912c6d53a4b48f299ea7fe86d466095,

title = "Optical constants of CH3NH3PbBr3 perovskite thin films measured by spectroscopic ellipsometry",

abstract = "The lack of optical constants information for hybrid perovskite of CH3NH3PbBr3 in thin films form can delay the progress of efficient LED or laser demonstration. Here, we report on the optical constants (complex refractive index and dielectric function) of CH3NH3PbBr3 perovskite thin films using spectroscopic ellipsometry. Due to the existence of voids, the refractive index of the thin films is around 8% less than the single crystals counterpart. The energy bandgap is around 2.309 eV as obtained from photoluminescence and spectrophotometry spectra, and calculated from the SE analysis. The precise measurement of optical constants will be useful in designing optical devices using CH3NH3PbBr3 thin films.",

author = "Alias, {Mohd Sharizal} and Ibrahim Dursun and Saidaminov, {Makhsud I.} and Diallo, {Elhadj Marwane} and Pawan Mishra and Ng, {Tien Khee} and Osman Bakr and Ooi, {Boon S.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: King Abdulaziz City for Science and Technology (KACST) (KACST TIC R2-FP-008); King Abdullah University of Science and Technology (KAUST) (BAS/1/1614-01-01).",

year = "2016",

month = jul,

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doi = "10.1364/OE.24.016586",

language = "English (US)",

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journal = "Optics Express",

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T1 - Optical constants of CH3NH3PbBr3 perovskite thin films measured by spectroscopic ellipsometry

AU - Alias, Mohd Sharizal

AU - Dursun, Ibrahim

AU - Saidaminov, Makhsud I.

AU - Diallo, Elhadj Marwane

AU - Mishra, Pawan

AU - Ng, Tien Khee

AU - Bakr, Osman

AU - Ooi, Boon S.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: King Abdulaziz City for Science and Technology (KACST) (KACST TIC R2-FP-008); King Abdullah University of Science and Technology (KAUST) (BAS/1/1614-01-01).

PY - 2016/7/14

Y1 - 2016/7/14

N2 - The lack of optical constants information for hybrid perovskite of CH3NH3PbBr3 in thin films form can delay the progress of efficient LED or laser demonstration. Here, we report on the optical constants (complex refractive index and dielectric function) of CH3NH3PbBr3 perovskite thin films using spectroscopic ellipsometry. Due to the existence of voids, the refractive index of the thin films is around 8% less than the single crystals counterpart. The energy bandgap is around 2.309 eV as obtained from photoluminescence and spectrophotometry spectra, and calculated from the SE analysis. The precise measurement of optical constants will be useful in designing optical devices using CH3NH3PbBr3 thin films.

AB - The lack of optical constants information for hybrid perovskite of CH3NH3PbBr3 in thin films form can delay the progress of efficient LED or laser demonstration. Here, we report on the optical constants (complex refractive index and dielectric function) of CH3NH3PbBr3 perovskite thin films using spectroscopic ellipsometry. Due to the existence of voids, the refractive index of the thin films is around 8% less than the single crystals counterpart. The energy bandgap is around 2.309 eV as obtained from photoluminescence and spectrophotometry spectra, and calculated from the SE analysis. The precise measurement of optical constants will be useful in designing optical devices using CH3NH3PbBr3 thin films.

UR - http://hdl.handle.net/10754/617075

UR - https://www.osapublishing.org/abstract.cfm?URI=oe-24-15-16586

UR - http://www.scopus.com/inward/record.url?scp=84979500309&partnerID=8YFLogxK

U2 - 10.1364/OE.24.016586

DO - 10.1364/OE.24.016586

M3 - Article

SN - 1094-4087

VL - 24

SP - 16586

JO - Optics Express

JF - Optics Express

IS - 15

ER -

Optical constants of CH3NH3PbBr3 perovskite thin films measured by spectroscopic ellipsometry

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