journal article·2021-06-02

High-Light-Tolerance PbI2 Boosting the Stability and Efficiency of Perovskite Solar Cells

Li Chen, Jingde Chen, Chenyue Wang, Hao Ren, Yu-Xin Luo, Kong-Chao Shen, Yanqing Li, Fei Song, Xingyu Gao, Jian-Xin Tang

ACS Applied Materials & Interfaces· Volume 13· Issue 21
Publisher page

Abstract

Excess lead iodide (PbI 2 ) plays a crucial role in passivating the defects of perovskite films and boosting the power conversion efficiency (PCE) of perovskite solar cells (PSCs). However, the photolysis of PbI 2 is easily triggered by light illumination, which accelerates the decomposition of perovskite materials and weakens the long-term stability of PSCs. Herein, the high light tolerance of lead iodide (PbI 2 ) is reported by introducing an electron-donor molecule, namely, 2-thiophenecarboxamide (2-TCAm), to strengthen the [PbX 6 ] 4– frame. Characterization reveals that the retarded decomposition of PbI 2 is attributed to the interactions between Pb 2+ and the organic functional groups in 2-TCAm as well as the optimized distribution of PbI 2 . The crystallization and morphology of 2-TCAm-doped perovskite films are improved simultaneously. The 2-TCAm-based PSCs achieve a 16.8% increase in PCE and nearly 12 times increase in the lifetime as compared to the reference device. The demonstrated method provides insight into the stability of PbI 2 and its influence on PSCs.
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

Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China

Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, and Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Chinese Academy of Sciences, Shanghai 201204, China

School of Physics and Electronic Science, Ministry of Education Nanophotonics and Advanced Instrument Engineering Research Center, East China Normal University, Shanghai 200062, China

Macao Institute of Materials Science and Engineering (MIMSE), Macau University of Science and Technology, Taipa, Macau SAR 999078, China

Funding

Collaborative Innovation Center of Suzhou Nano Science and Technology · Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · 333 program · Jiangsu Provincial Research Scheme of Natural Science for Higher Education Institutions

References (43)

Show source-provided references
1. 10.1021/ja809598r10.1021/ja809598r ↗
2. 10.1039/D0EE01967D10.1039/D0EE01967D ↗
3. 10.1021/jz500279b10.1021/jz500279b ↗
4. 10.1126/science.124398210.1126/science.1243982 ↗
5. 10.1002/adma.20130517210.1002/adma.201305172 ↗
6. NREL, Best Research-Cell Efficiencies, National Renewable Energy Laboratory; https://www.nrel.gov/pv/assets/pdfs/best-research-cell-efficiencies.20200925.pdf.
7. 10.1021/jz500528510.1021/jz5005285 ↗
8. 10.1002/aenm.20150096310.1002/aenm.201500963 ↗
9. 10.1038/nmat406510.1038/nmat4065 ↗
10. 10.1021/acsenergylett.7b0023610.1021/acsenergylett.7b00236 ↗
11. 10.1039/C5RA16669A10.1039/C5RA16669A ↗
12. 10.1038/srep0059110.1038/srep00591 ↗
13. 10.1039/C6EE03182J10.1039/C6EE03182J ↗
14. 10.1039/C6EE03397K10.1039/C6EE03397K ↗
15. 10.1016/j.joule.2020.01.00810.1016/j.joule.2020.01.008 ↗
16. 10.1021/jz402016210.1021/jz4020162 ↗
17. 10.1038/s41560-018-0190-410.1038/s41560-018-0190-4 ↗
18. 10.1021/jacs.6b0632010.1021/jacs.6b06320 ↗
19. 10.1021/acs.jpclett.0c0182010.1021/acs.jpclett.0c01820 ↗
20. 10.1088/2515-7655/abaec810.1088/2515-7655/abaec8 ↗
21. 10.1021/acs.jpcc.0c0448810.1021/acs.jpcc.0c04488 ↗
22. 10.1098/rspa.1965.006310.1098/rspa.1965.0063 ↗
23. 10.1002/adma.20190503510.1002/adma.201905035 ↗
24. 10.1002/adma.20180533710.1002/adma.201805337 ↗
25. 10.1016/j.matlet.2020.12797910.1016/j.matlet.2020.127979 ↗
26. 10.1002/aenm.20150220610.1002/aenm.201502206 ↗
27. 10.1021/acsaem.0c0024510.1021/acsaem.0c00245 ↗
28. 10.1002/aenm.20160084610.1002/aenm.201600846 ↗
29. 10.1021/ja507930510.1021/ja5079305 ↗
30. 10.1039/C9NR10137C10.1039/C9NR10137C ↗
31. 10.1021/nn503647610.1021/nn5036476 ↗
32. 10.1002/ange.20200611210.1002/ange.202006112 ↗
33. 10.1002/adma.20190369110.1002/adma.201903691 ↗
34. 10.1002/aenm.20180357310.1002/aenm.201803573 ↗
35. 10.1016/j.chempr.2017.05.02010.1016/j.chempr.2017.05.020 ↗
36. 10.1002/advs.20190054810.1002/advs.201900548 ↗
37. 10.1039/C8TC04872J10.1039/C8TC04872J ↗
38. 10.1002/adma.20170385210.1002/adma.201703852 ↗
39. 10.1002/adma.20190566110.1002/adma.201905661 ↗
40. 10.1002/aenm.20170339910.1002/aenm.201703399 ↗
41. 10.1002/adfm.20130209010.1002/adfm.201302090 ↗
42. 10.1002/aenm.20180347610.1002/aenm.201803476 ↗
43. 10.1002/cssc.20180188810.1002/cssc.201801888 ↗