Low temperature fabrication of formamidinium based perovskite solar cells with enhanced performance by chlorine incorporation

Jian Qing; Hrisheekesh-Thachoth Chandran; Yuan-Hang Cheng; Sai-Wing Tsang; Ming-Fai Lo; Chun-Sing Lee

doi:10.1016/j.orgel.2016.08.009

Author(s)

Ming-Fai Lo

Related Research Unit(s)

Detail(s)

Original language	English
Pages (from-to)	144-149
Journal / Publication	Organic Electronics: physics, materials, applications
Volume	38
Publication status	Published - 1 Nov 2016

Link(s)

DOI	DOI https://doi.org/10.1016/j.orgel.2016.08.009 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84982234802&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(f320e934-113a-4691-af53-a988150c895d).html

Abstract

Recently formamidinium (FA) based perovskite solar cell was demonstrated to show high performance and better stability upon partial substitution of FA with Cs cation. However, the fabrication of device required high-temperature processing on TiO₂ electrode and thus limits the use of flexible polymeric substrates. Here, we present a low temperature approach for the fabrication of p-i-n perovskite solar cells based on Cs_0.15FA_0.85PbI₃. Furthermore, we investigated the effects of chlorine on the morphology and crystallinity of the perovskite films and the corresponding photovoltaic performance. Chlorine incorporation can significantly enlarge the size of grains and improve the crystallinity of perovskite films with full surface coverage. A best power conversion efficiency of 14.5% was realized for planar perovskite solar cells with negligible hysteresis and remarkable reproducibility.

Research Area(s)

Chlorine incorporation, Formamidinium, Grain size, Low temperature, Perovskite solar cells

Citation Format(s)

[ RIS ] [ BibTeX ]

Low temperature fabrication of formamidinium based perovskite solar cells with enhanced performance by chlorine incorporation. / Qing, Jian ; Chandran, Hrisheekesh-Thachoth ; Cheng, Yuan-Hang et al.

In: Organic Electronics: physics, materials, applications, Vol. 38, 01.11.2016, p. 144-149.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Qing, J , Chandran, H-T , Cheng, Y-H , Tsang, S-W, Lo, M-F & Lee, C-S 2016, 'Low temperature fabrication of formamidinium based perovskite solar cells with enhanced performance by chlorine incorporation', Organic Electronics: physics, materials, applications, vol. 38, pp. 144-149. https://doi.org/10.1016/j.orgel.2016.08.009

Qing, J., Chandran, H-T., Cheng, Y-H., Tsang, S-W., Lo, M-F., & Lee, C-S. (2016). Low temperature fabrication of formamidinium based perovskite solar cells with enhanced performance by chlorine incorporation. Organic Electronics: physics, materials, applications, 38, 144-149. https://doi.org/10.1016/j.orgel.2016.08.009

Qing J , Chandran H-T , Cheng Y-H , Tsang S-W, Lo M-F, Lee C-S. Low temperature fabrication of formamidinium based perovskite solar cells with enhanced performance by chlorine incorporation. Organic Electronics: physics, materials, applications. 2016 Nov 1;38:144-149. doi: 10.1016/j.orgel.2016.08.009

Qing, Jian ; Chandran, Hrisheekesh-Thachoth ; Cheng, Yuan-Hang et al. / Low temperature fabrication of formamidinium based perovskite solar cells with enhanced performance by chlorine incorporation. In: Organic Electronics: physics, materials, applications. 2016 ; Vol. 38. pp. 144-149.