Adjusting energy level alignment between HTL and CsPbI2Br to improve solar cell efficiency

Zihan Zhang; Jia Li; Zhimin Fang; Haipeng Xie; Yongbo Yuan; Chuantian Zuo; Liming Ding; Bin Yang

doi:10.1088/1674-4926/42/3/030501

Journals >Journal of Semiconductors >Volume 42 >Issue 3 >Page 030501 > Article

Journal of Semiconductors
Vol. 42, Issue 3, 030501 (2021)

Adjusting energy level alignment between HTL and CsPbI₂Br to improve solar cell efficiency

Zihan Zhang^1,2, Jia Li¹, Zhimin Fang², Haipeng Xie³..., Yongbo Yuan³, Chuantian Zuo², Liming Ding² and Bin Yang¹|Show fewer author(s)

Author Affiliations

¹College of Materials Science and Engineering, Hunan University, Changsha 410082, China

²Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China

³Hunan Key Laboratory of Super Microstructure and Ultrafast Process, College of Physics and Electronics, Central South University, Changsha 410083, China

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DOI: 10.1088/1674-4926/42/3/030501 Cite this Article

Zihan Zhang, Jia Li, Zhimin Fang, Haipeng Xie, Yongbo Yuan, Chuantian Zuo, Liming Ding, Bin Yang. Adjusting energy level alignment between HTL and CsPbI₂Br to improve solar cell efficiency[J]. Journal of Semiconductors, 2021, 42(3): 030501 Copy Citation Text

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(Color online) (a) The device structure and chemical structures for PTAA and PVK. (b) Cross-sectional SEM image of the device. (c) J–V curves for the solar cells with pristine PTAA and PTAA (7.5% PVK). (d) Transient photocurrent measurements for the solar cells. (e) UPS spectra for pristine PTAA and PTAA (7.5% PVK). (f) The energy level diagram.

Fig. 1. (Color online) (a) The device structure and chemical structures for PTAA and PVK. (b) Cross-sectional SEM image of the device. (c) J–V curves for the solar cells with pristine PTAA and PTAA (7.5% PVK). (d) Transient photocurrent measurements for the solar cells. (e) UPS spectra for pristine PTAA and PTAA (7.5% PVK). (f) The energy level diagram.

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