DataVXACS Energy LettersPaper
journal article·2025-11-14

Tailoring Heterojunction Energetics for 3D/2D Bilayer Stack Perovskite Solar Cells

Shaobing Xiong, Xiaoxiao Zang, Chaochao Wang, Xuelin Wang, Zaifei Ma, Lixuan Kan, Mengyao Song, Jinxiang Wang, Qu Yang, Zhennan Lin, Di Li, Bin Zhao, Sheng Jiang, Yunzhe Zheng, Yuning Wu, Shuang Yang, Yongbo Yuan, Bo Li, Meifang Zhu, Qinye Bao

ACS Energy Letters· Volume 10· Issue 11
Publisher page
Source abstract

Abstract

Energetics mismatch at the 3D/2D heterojunction is one important source for nonradiative recombination in 3D/2D heterojunction perovskite solar cells (PSCs). Herein, we successfully tailor the energetics of bilayer stack 3D/2D heterojunctions via different interfacial dipoles employing a series of molecular interlayers and explore the impacts of energetics and conduction band minimum energy offsets at 3D/2D heterojunctions on electron extraction efficacy and operational stability for p-i-n PSCs. We reveal that the negative dipole efficiently eliminates the energetics mismatch at the 3D/2D heterojunction and accelerates the electron transport across the heterojunction. Furthermore, the improved energetics at the 3D/2D heterojunction inhibits halide ion migration, significantly improving the device long-term stability. As a result, we achieve an impressive and robust efficiency over 25%, among the highest performance reported to date for 3D/2D bilayer stack PSCs using direct deposition of 2D perovskite. This work offers a promising strategy of energetics management to push 3D/2D heterojunction PSC technology forward.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materialsMaterials processing

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Chalcogenide Semiconductor Thin Films

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

Affiliations

School of Physics and Electronic Science

East China Normal University

State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering

Donghua University

School of Chemistry and Chemical Engineering

Shanghai Jiao Tong University

Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering

East China University of Science and Technology

Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics

Central South University

Collaborative Innovation Center of Extreme Optics

Shanxi University

Funding

East China Normal University · National Key Research and Development Program of China · National Natural Science Foundation of China · Science and Technology Innovation Plan Of Shanghai Science and Technology Commission

References (46)

Show source-provided references
1. 10.1038/s41586-024-07723-310.1038/s41586-024-07723-3 ↗
2. 10.1038/s41467-024-50019-310.1038/s41467-024-50019-3 ↗
3. 10.1021/acsenergylett.2c0172810.1021/acsenergylett.2c01728 ↗
4. 10.1038/s43246-022-00325-410.1038/s43246-022-00325-4 ↗
5. 10.3866/PKU.WHXB20230305710.3866/PKU.WHXB202303057 ↗
6. 10.1021/ja809598r10.1021/ja809598r ↗
7. National Renewable Energy Laboratory (NREL). Best Research-Cell Efficiencies Chart . https://www.nrel.gov/pv/cell-efficiency.html (accessed: June 2025).
8. 10.1016/j.nanoen.2018.10.01110.1016/j.nanoen.2018.10.011 ↗
9. 10.1002/adfm.20180884310.1002/adfm.201808843 ↗
10. 10.1039/D0CS00573H10.1039/D0CS00573H ↗
11. 10.1126/science.adf334910.1126/science.adf3349 ↗
12. 10.1002/adma.20180533710.1002/adma.201805337 ↗
13. 10.1038/ncomms849710.1038/ncomms8497 ↗
14. 10.1002/aenm.20230265910.1002/aenm.202302659 ↗
15. 10.1002/smm2.108710.1002/smm2.1087 ↗
16. 10.1016/j.matt.2020.11.01110.1016/j.matt.2020.11.011 ↗
17. 10.1002/aenm.20200068710.1002/aenm.202000687 ↗
18. 10.1021/acs.chemrev.0c0100610.1021/acs.chemrev.0c01006 ↗
19. 10.1021/acsenergylett.1c0264510.1021/acsenergylett.1c02645 ↗
20. 10.1039/D3EE04520J10.1039/D3EE04520J ↗
21. 10.1002/adma.20230999110.1002/adma.202309991 ↗
22. 10.1038/s41586-024-07189-310.1038/s41586-024-07189-3 ↗
23. 10.1126/sciadv.adp311210.1126/sciadv.adp3112 ↗
24. 10.1038/s41560-023-01205-y10.1038/s41560-023-01205-y ↗
25. 10.1039/D2EE03355K10.1039/D2EE03355K ↗
26. 10.1038/s41566-022-00985-110.1038/s41566-022-00985-1 ↗
27. 10.1002/adma.20230207110.1002/adma.202302071 ↗
28. 10.1126/sciadv.adg003210.1126/sciadv.adg0032 ↗
29. 10.1002/adma.20240456110.1002/adma.202404561 ↗
30. 10.1088/1674-4926/2501002110.1088/1674-4926/25010021 ↗
31. 10.1038/s41560-025-01815-810.1038/s41560-025-01815-8 ↗
32. 10.1126/science.abq765210.1126/science.abq7652 ↗
33. 10.1016/j.nanoen.2024.11053810.1016/j.nanoen.2024.110538 ↗
34. 10.1016/j.scib.2025.03.03410.1016/j.scib.2025.03.034 ↗
35. 10.1038/s41560-023-01227-610.1038/s41560-023-01227-6 ↗
36. 10.1016/j.joule.2020.12.00310.1016/j.joule.2020.12.003 ↗
37. 10.1002/aenm.20230073810.1002/aenm.202300738 ↗
38. 10.1002/aenm.20240180910.1002/aenm.202401809 ↗
39. 10.1039/D4EE03208J10.1039/D4EE03208J ↗
40. 10.1126/science.abf765210.1126/science.abf7652 ↗
41. 10.1016/j.joule.2020.12.00910.1016/j.joule.2020.12.009 ↗
42. 10.1126/science.ade312610.1126/science.ade3126 ↗
43. 10.1002/smll.20240859310.1002/smll.202408593 ↗
44. 10.1016/j.joule.2022.10.01510.1016/j.joule.2022.10.015 ↗
45. 10.1038/s41586-022-04604-510.1038/s41586-022-04604-5 ↗
46. 10.1016/j.joule.2024.06.01710.1016/j.joule.2024.06.017 ↗