Thickness control of organic semiconductor-incorporated perovskites

Jee Yung Park; Ruyi Song; Jie Liang; Linrui Jin; Kang Wang; Shunran Li; Enzheng Shi; Yao Gao; Matthias Zeller; Simon J Teat; Peijun Guo; Libai Huang; Yong Sheng Zhao; Volker Blum; Letian Dou

doi:10.1038/s41557-023-01311-0

Thickness control of organic semiconductor-incorporated perovskites

Nat Chem. 2023 Dec;15(12):1745-1753. doi: 10.1038/s41557-023-01311-0. Epub 2023 Aug 31.

Authors

Jee Yung Park^#¹, Ruyi Song^#², Jie Liang^#³, Linrui Jin^#⁴, Kang Wang¹, Shunran Li^{5

6}, Enzheng Shi⁷, Yao Gao⁸, Matthias Zeller⁴, Simon J Teat⁹, Peijun Guo^{5

6}, Libai Huang¹⁰, Yong Sheng Zhao¹¹, Volker Blum^{12

13}, Letian Dou^{14

15

16}

Affiliations

¹ Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, USA.
² Department of Chemistry, Duke University, Durham, NC, USA.
³ Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
⁴ Department of Chemistry, Purdue University, West Lafayette, IN, USA.
⁵ Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA.
⁶ Energy Sciences Institute, Yale University, West Haven, CT, USA.
⁷ Research Center for Industries of the Future and School of Engineering, Westlake University, Hangzhou, China.
⁸ State Key Laboratory of Material Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, China.
⁹ Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
¹⁰ Department of Chemistry, Purdue University, West Lafayette, IN, USA. libai-huang@purdue.edu.
¹¹ Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China. yszhao@iccas.ac.cn.
¹² Department of Chemistry, Duke University, Durham, NC, USA. volker.blum@duke.edu.
¹³ Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, USA. volker.blum@duke.edu.
¹⁴ Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, USA. dou10@purdue.edu.
¹⁵ Department of Chemistry, Purdue University, West Lafayette, IN, USA. dou10@purdue.edu.
¹⁶ Birck Nanotechnology Center, Purdue University, West Lafayette, IN, USA. dou10@purdue.edu.

^# Contributed equally.

PMID: 37653228
DOI: 10.1038/s41557-023-01311-0

Abstract

Two-dimensional organic semiconductor-incorporated perovskites are a promising family of hybrid materials for optoelectronic applications, owing in part to their inherent quantum well architecture. Tuning their structures and properties for specific properties, however, has remained challenging. Here we report a general method to tune the dimensionality of phase-pure organic semiconductor-incorporated perovskite single crystals during their synthesis, by judicious choice of solvent. The length of the conjugated semiconducting organic cations and the dimensionality (n value) of the inorganic layers can be manipulated at the same time. The energy band offsets and exciton dynamics at the organic-inorganic interfaces can therefore be precisely controlled. Furthermore, we show that longer and more planar π-conjugated organic cations induce a more rigid inorganic crystal lattice, which leads to suppressed exciton-phonon interactions and better optoelectronic properties as compared to conventional two-dimensional perovskites. As a demonstration, optically driven lasing behaviour with substantially lower lasing thresholds was realized.

Abstract

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