Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying

Som Sarang; Hidetaka Ishihara; Yen Chang Chen; Oliver Lin; Vincent C. Tung; Sayantani Ghosh

doi:10.1117/12.2213249

Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying

Som Sarang, Hidetaka Ishihara, Yen Chang Chen, Oliver Lin, Vincent C. Tung, Sayantani Ghosh^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We have developed an electrospraying technique inspired from Marangoni flow seen in nature. We demonstrate our ability to synthesise highly crystalline uniform perovskite thin films with enhanced coverage and high absorption. Due to a difference in the vapour pressure of DMSO and NMP, a gradient force is developed that helps in propagating the incoming precursor droplet to coalesce and merge with other droplets thus inducing a dynamic self-assembly within the thin film. This results in thin films with high uniformity and good morphological and topological characteristics, that collectivelty resulted in a respectable PCE of greater than 14%. Optical studies are conducted in parallel to better understand the energy phase space of perovskite crystals. The high temperature tetragonal phase showed a high recombination rate of 180 ns, ideal for photovoltaic performances, while the low temperature measurements reveal considerable complexity in spectral and dynamic properties that demand further invesgtiation.

Original language	English (US)
Title of host publication	Organic Photonic Materials and Devices XVIII
Editors	Francois Kajzar, Christopher E. Tabor, Toshikuni Kaino, Yasuhiro Koike
Publisher	SPIE
ISBN (Electronic)	9781628419801
DOIs	https://doi.org/10.1117/12.2213249
State	Published - 2016
Externally published	Yes
Event	Organic Photonic Materials and Devices XVIII - San Francisco, United States Duration: Feb 15 2016 → Feb 17 2016

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9745
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Organic Photonic Materials and Devices XVIII
Country/Territory	United States
City	San Francisco
Period	02/15/16 → 02/17/16

Bibliographical note

Publisher Copyright:
© 2016 SPIE.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1117/12.2213249

Cite this

Sarang, S., Ishihara, H., Chen, Y. C., Lin, O., Tung, V. C., & Ghosh, S. (2016). Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying. In F. Kajzar, C. E. Tabor, T. Kaino, & Y. Koike (Eds.), Organic Photonic Materials and Devices XVIII Article 974519 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9745). SPIE. https://doi.org/10.1117/12.2213249

Sarang, Som ; Ishihara, Hidetaka ; Chen, Yen Chang et al. / Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying. Organic Photonic Materials and Devices XVIII. editor / Francois Kajzar ; Christopher E. Tabor ; Toshikuni Kaino ; Yasuhiro Koike. SPIE, 2016. (Proceedings of SPIE - The International Society for Optical Engineering).

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title = "Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying",

abstract = "We have developed an electrospraying technique inspired from Marangoni flow seen in nature. We demonstrate our ability to synthesise highly crystalline uniform perovskite thin films with enhanced coverage and high absorption. Due to a difference in the vapour pressure of DMSO and NMP, a gradient force is developed that helps in propagating the incoming precursor droplet to coalesce and merge with other droplets thus inducing a dynamic self-assembly within the thin film. This results in thin films with high uniformity and good morphological and topological characteristics, that collectivelty resulted in a respectable PCE of greater than 14%. Optical studies are conducted in parallel to better understand the energy phase space of perovskite crystals. The high temperature tetragonal phase showed a high recombination rate of 180 ns, ideal for photovoltaic performances, while the low temperature measurements reveal considerable complexity in spectral and dynamic properties that demand further invesgtiation.",

author = "Som Sarang and Hidetaka Ishihara and Chen, {Yen Chang} and Oliver Lin and Tung, {Vincent C.} and Sayantani Ghosh",

note = "Publisher Copyright: {\textcopyright} 2016 SPIE.; Organic Photonic Materials and Devices XVIII ; Conference date: 15-02-2016 Through 17-02-2016",

year = "2016",

doi = "10.1117/12.2213249",

language = "English (US)",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

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Sarang, S, Ishihara, H, Chen, YC, Lin, O, Tung, VC & Ghosh, S 2016, Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying. in F Kajzar, CE Tabor, T Kaino & Y Koike (eds), Organic Photonic Materials and Devices XVIII., 974519, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9745, SPIE, Organic Photonic Materials and Devices XVIII, San Francisco, United States, 02/15/16. https://doi.org/10.1117/12.2213249

Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying. / Sarang, Som; Ishihara, Hidetaka; Chen, Yen Chang et al.
Organic Photonic Materials and Devices XVIII. ed. / Francois Kajzar; Christopher E. Tabor; Toshikuni Kaino; Yasuhiro Koike. SPIE, 2016. 974519 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9745).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Sarang, Som

AU - Ishihara, Hidetaka

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AU - Lin, Oliver

AU - Tung, Vincent C.

AU - Ghosh, Sayantani

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AB - We have developed an electrospraying technique inspired from Marangoni flow seen in nature. We demonstrate our ability to synthesise highly crystalline uniform perovskite thin films with enhanced coverage and high absorption. Due to a difference in the vapour pressure of DMSO and NMP, a gradient force is developed that helps in propagating the incoming precursor droplet to coalesce and merge with other droplets thus inducing a dynamic self-assembly within the thin film. This results in thin films with high uniformity and good morphological and topological characteristics, that collectivelty resulted in a respectable PCE of greater than 14%. Optical studies are conducted in parallel to better understand the energy phase space of perovskite crystals. The high temperature tetragonal phase showed a high recombination rate of 180 ns, ideal for photovoltaic performances, while the low temperature measurements reveal considerable complexity in spectral and dynamic properties that demand further invesgtiation.

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Sarang S, Ishihara H, Chen YC, Lin O, Tung VC, Ghosh S. Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying. In Kajzar F, Tabor CE, Kaino T, Koike Y, editors, Organic Photonic Materials and Devices XVIII. SPIE. 2016. 974519. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2213249

Photovoltaic and optical properties of perovskite thin films fabricated using Marangoni flow assisted electrospraying

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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