High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations

Ruddlesden-Popper perovskites (RPPs), consisting of alternating organic spacer layers and inorganic layers, have emerged as a promising alternative to 3D perovskites for both photovoltaic and light-emitting applications. The organic spacer layers provide a wide range of new possibilities to tune the...

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Main Authors: Qing, Jian, Kuang, Chaoyang, Wang, Heyong, Wang, Yuming, Liu, Xiao-Ke, Bai, Sai, Li, Mingjie, Sum, Tze Chien, Hu, Zhangjun, Zhang, Wenjing, Gao, Feng
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/139196
https://doi.org/10.21979/N9/ZMOIT8
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1391962023-02-28T20:01:06Z High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations Qing, Jian Kuang, Chaoyang Wang, Heyong Wang, Yuming Liu, Xiao-Ke Bai, Sai Li, Mingjie Sum, Tze Chien Hu, Zhangjun Zhang, Wenjing Gao, Feng School of Physical and Mathematical Sciences Science::Physics Layered Perovskites Light-emitting Diodes Ruddlesden-Popper perovskites (RPPs), consisting of alternating organic spacer layers and inorganic layers, have emerged as a promising alternative to 3D perovskites for both photovoltaic and light-emitting applications. The organic spacer layers provide a wide range of new possibilities to tune the properties and even provide new functionalities for RPPs. However, the preparation of state-of-the-art RPPs requires organic ammonium halides as the starting materials, which need to be ex situ synthesized. A novel approach to prepare high-quality RPP films through in situ formation of organic spacer cations from amines is presented. Compared with control devices fabricated from organic ammonium halides, this new approach results in similar (and even better) device performance for both solar cells and light-emitting diodes. High-quality RPP films are fabricated based on different types of amines, demonstrating the universality of the approach. This approach not only represents a new pathway to fabricate efficient devices based on RPPs, but also provides an effective method to screen new organic spacers with further improved performance. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-05-18T03:19:49Z 2020-05-18T03:19:49Z 2019 Journal Article Qing, J., Kuang, C., Wang, H., Wang, Y., Liu, X.-K, Bai, S., . . . Gao, F. (2019). High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations. Advanced Materials, 31(41), 1904243-. doi:10.1002/adma.201904243 0935-9648 https://hdl.handle.net/10356/139196 10.1002/adma.201904243 31456250 2-s2.0-85071339199 41 31 en Advanced Materials https://doi.org/10.21979/N9/ZMOIT8 This is the peer reviewed version of the following article: Qing, J., Kuang, C., Wang, H., Wang, Y., Liu, X.-K, Bai, S., . . . Gao, F. (2019). High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations. Advanced Materials, 31(41), 1904243-, which has been published in final form at https://doi.org/10.1002/adma.201904243. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. application/pdf application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics
Layered Perovskites
Light-emitting Diodes
spellingShingle Science::Physics
Layered Perovskites
Light-emitting Diodes
Qing, Jian
Kuang, Chaoyang
Wang, Heyong
Wang, Yuming
Liu, Xiao-Ke
Bai, Sai
Li, Mingjie
Sum, Tze Chien
Hu, Zhangjun
Zhang, Wenjing
Gao, Feng
High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations
description Ruddlesden-Popper perovskites (RPPs), consisting of alternating organic spacer layers and inorganic layers, have emerged as a promising alternative to 3D perovskites for both photovoltaic and light-emitting applications. The organic spacer layers provide a wide range of new possibilities to tune the properties and even provide new functionalities for RPPs. However, the preparation of state-of-the-art RPPs requires organic ammonium halides as the starting materials, which need to be ex situ synthesized. A novel approach to prepare high-quality RPP films through in situ formation of organic spacer cations from amines is presented. Compared with control devices fabricated from organic ammonium halides, this new approach results in similar (and even better) device performance for both solar cells and light-emitting diodes. High-quality RPP films are fabricated based on different types of amines, demonstrating the universality of the approach. This approach not only represents a new pathway to fabricate efficient devices based on RPPs, but also provides an effective method to screen new organic spacers with further improved performance.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Qing, Jian
Kuang, Chaoyang
Wang, Heyong
Wang, Yuming
Liu, Xiao-Ke
Bai, Sai
Li, Mingjie
Sum, Tze Chien
Hu, Zhangjun
Zhang, Wenjing
Gao, Feng
format Article
author Qing, Jian
Kuang, Chaoyang
Wang, Heyong
Wang, Yuming
Liu, Xiao-Ke
Bai, Sai
Li, Mingjie
Sum, Tze Chien
Hu, Zhangjun
Zhang, Wenjing
Gao, Feng
author_sort Qing, Jian
title High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations
title_short High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations
title_full High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations
title_fullStr High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations
title_full_unstemmed High-quality Ruddlesden-Popper perovskite films based on in situ formed organic spacer cations
title_sort high-quality ruddlesden-popper perovskite films based on in situ formed organic spacer cations
publishDate 2020
url https://hdl.handle.net/10356/139196
https://doi.org/10.21979/N9/ZMOIT8
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