journal article·2022-10-14

Band Alignment Boosts over 17% Efficiency Quasi-2D Perovskite Solar Cells via Bottom-Side Phase Manipulation

Haoliang Wang, Yiyi Pan, Xiaoguo Li, Zejiao Shi, Xin Zhang, Tangyao Shen, Yang Tang, Wenyong Fan, Yuchen Zhang, Fengcai Liu, Yaxin Wang, Kai Liu, Yanyan Wang, Chongyuan Li, Tianxiang Hu, Liangliang Deng, Jiao Wang, Anran Yu, Hongliang Dong, Yingguo Yang, Lei Xue, Lei Shi, Yiqiang Zhan

ACS Energy Letters· Volume 7· Issue 10
Publisher page

Abstract

Quasi-2D perovskites have attracted extensive attention due to their extraordinary stability compared to their 3D counterparts. Presently, the bottleneck in quasi-2D perovskite solar cells is their relatively low efficiency. The intrinsic interior carrier transport in the perovskite layer consisting of disorderly oriented phases and inadequate optimization of interfacial carrier transfer have greatly limited the overall device performance. A comprehensive study on effective phase manipulation in the BA2MA4Pb5I16 (n = 5) quasi-2D perovskites is presented to pursue optimal efficiency. With the assistance of the solvent DMSO in a constant thermal-annealing spin-coating (CTAS) process, the crystalline growth process in the quasi-2D perovskite film is effectively manipulated and delicate energy band alignment by eliminating the n ≤ 2 phases at the bottom surface has been successfully achieved. Consequently, a significant improvement of carrier transport in the perovskite layer and photogenerated hole extraction at the interface has been accomplished. The champion device exhibited a boosted PCE of 17.66%.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai 200433, People’s Republic of China

Institute of Optoelectronics, Fudan University, Shanghai 200433, People’s Republic of China

Department of Physics, Fudan University, Shanghai 200433, People’s Republic of China

State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Research Institute of Intelligent Complex Systems, School of Life Sciences, Fudan University, Shanghai 200438, People’s Republic of China

Center for High Pressure Science and Technology Advanced Research, Pudong, Shanghai 201203, People’s Republic of China

Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People’s Republic of China

Funding

National Natural Science Foundation of China · Science and Technology Innovation 2030-Brain Science and Brain-Inspired Intelligence Project

References (36)

Show source-provided references
1. National Renewable Energy Laboratory (NREL) Best Research-Cell Efficiencies; https://www.nrel.gov/pv/cell-efficiency.html (accessed: July 2021).
2. 10.1021/ic991048k10.1021/ic991048k ↗
3. 10.1039/c3ta10518k10.1039/c3ta10518k ↗
4. 10.1038/ncomms458610.1038/ncomms4586 ↗
5. 10.1021/acs.chemrev.8b0033610.1021/acs.chemrev.8b00336 ↗
6. 10.1021/jacs.5b0379610.1021/jacs.5b03796 ↗
7. 10.1038/nature1830610.1038/nature18306 ↗
8. 10.1002/anie.20190295910.1002/anie.201902959 ↗
9. 10.1016/j.nanoen.2019.02.00210.1016/j.nanoen.2019.02.002 ↗
10. 10.1039/C7EE01145H10.1039/C7EE01145H ↗
11. 10.1021/acsenergylett.8b0118110.1021/acsenergylett.8b01181 ↗
12. 10.1039/C8TA09146C10.1039/C8TA09146C ↗
13. 10.1038/s41467-019-13856-110.1038/s41467-019-13856-1 ↗
14. 10.1038/s41467-018-03757-010.1038/s41467-018-03757-0 ↗
15. 10.1002/aenm.20170097910.1002/aenm.201700979 ↗
16. 10.1002/adfm.20190165210.1002/adfm.201901652 ↗
17. 10.1002/adfm.20211214610.1002/adfm.202112146 ↗
18. 10.1038/s41467-019-08958-910.1038/s41467-019-08958-9 ↗
19. 10.1016/j.joule.2019.09.02010.1016/j.joule.2019.09.020 ↗
20. 10.1038/s41560-020-00721-510.1038/s41560-020-00721-5 ↗
21. 10.1039/C9TA06009J10.1039/C9TA06009J ↗
22. 10.1002/adma.20190388910.1002/adma.201903889 ↗
23. 10.1002/aenm.20200183210.1002/aenm.202001832 ↗
24. 10.1002/adfm.20200418810.1002/adfm.202004188 ↗
25. 10.1007/s40820-021-00602-w10.1007/s40820-021-00602-w ↗
26. 10.1002/solr.20210049510.1002/solr.202100495 ↗
27. 10.1002/adma.20200717610.1002/adma.202007176 ↗
28. 10.1002/solr.20180035910.1002/solr.201800359 ↗
29. 10.1126/sciadv.abb241210.1126/sciadv.abb2412 ↗
30. 10.34133/2021/979705310.34133/2021/9797053 ↗
31. 10.1039/D1EE01695D10.1039/D1EE01695D ↗
32. 10.1002/aenm.20210214410.1002/aenm.202102144 ↗
33. 10.1039/C7TA10136H10.1039/C7TA10136H ↗
34. 10.1038/ncomms832710.1038/ncomms8327 ↗
35. 10.1039/C9TA04658E10.1039/C9TA04658E ↗
36. 10.1039/D1TA03359J10.1039/D1TA03359J ↗