journal article·2025-09

Crosslinked Conjugated Interlayer Network for Efficient and Stable Wide‐Bandgap Perovskite and All‐Perovskite Tandem Solar Cells

Jianwei Chen, Zhuojia Lin, Hongyu Min, Kezhou Fan, Honggang Chen, Shibing Zou, Yitong Xu, Xiao Wu, Penggang Yin, Haining Chen, Lin Guo, Xinhui Lu, Man Yu Lam, Sergeev A. Aleksandr, Kam Sing Wong, Keyou Yan

Advanced Energy Materials· Volume 15· Issue 34
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Abstract

Abstract Compared to single‐junction perovskite solar cells (PSCs), all‐perovskite tandem solar cells (PTSCs) offer higher power conversion efficiencies (PCEs). However, the substantial open‐circuit voltage ( V OC ) loss of wide‐bandgap (WBG) perovskite sub‐cells limits the efficiency due to the interface defect and halide segregation. In this study, 6‐hydroxy‐2‐naphthalenecarboxylic acid (HNA) is employed to construct cross‐linked network by the H‐bond and conjugated interaction to engineer the interface and suppress halide segregation. Enhanced Photoluminescence (PL) intensity and reduced quai‐Fermi level splitting (QFLS) loss indicate that the unique molecular conformation of HNA facilitates the process of the dense crosslinked film, which greatly enhances the passivation effect. Meanwhile, the strong π‐π interactions accelerate the charge transport at the WBG perovskite/C 60 interface, effectively suppressing the non‐radiative recombination. The 1.78 eV WBG PSCs achieve a V OC of 1.35 V and a PCE of 19.92% and deliver T 80 = 1100 h by maximum power point track (MPPT). In combination with narrow‐bandgap (NBG) sub‐cells, PTSCs exhibit a V OC of 2.13 V, a PCE of 28.25%, and T 80 of 500 h. This work provides a self‐assembled interlayer strategy to develop highly efficient and stable WBG sub‐cells for PTSCs.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Electronics and Photovoltaics

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

Affiliations

School of Environment and Energy State Key Laboratory of Luminescent Materials and Devices Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling South China University of Technology Guangzhou 510000 P. R. China

Department of Physics and William Mong Institute of Nano Science and Technology The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong 999077 P. R. China

Department of Physics The Chinese University of Hong Kong Shatin Hong Kong 999077 P. R. China

School of Chemistry and Environment Beihang University Xueyuan Road No. 37 Haidian District Beijing Beijing 100091 P. R. China

School of Materials Science and Engineering Beihang University Beijing 100083 P. R. China

School of Chemistry Beijing Advanced Innovation Center for Biomedical Engineering Beihang University Beijing 100191 P. R. China

Funding

National Natural Science Foundation of China · National Key Research and Development Program of China

References (47)

Show source-provided references
1. 10.1002/pip.383110.1002/pip.3831 ↗
2. 10.1021/acs.nanolett.7b0083210.1021/acs.nanolett.7b00832 ↗
3. 10.1021/ja506936f10.1021/ja506936f ↗
4. 10.1126/science.124316710.1126/science.1243167 ↗
5. 10.1126/science.124398210.1126/science.1243982 ↗
6. 10.1039/C5CP00448A10.1039/C5CP00448A ↗
7. 10.1002/adma.20170441810.1002/adma.201704418 ↗
8. 10.1021/jp504951h10.1021/jp504951h ↗
9. 10.1021/ja503325910.1021/ja5033259 ↗
10. 10.1021/jp404865910.1021/jp4048659 ↗
11. 10.1002/adfm.20200190410.1002/adfm.202001904 ↗
12. 10.1002/aenm.20220267410.1002/aenm.202202674 ↗
13. 10.1039/C9EE02162K10.1039/C9EE02162K ↗
14. 10.1021/acsenergylett.8b0217910.1021/acsenergylett.8b02179 ↗
15. 10.1021/acsenergylett.8b0192010.1021/acsenergylett.8b01920 ↗
16. 10.1126/science.aba089310.1126/science.aba0893 ↗
17. 10.1038/nenergy.2016.14910.1038/nenergy.2016.149 ↗
18. 10.1002/anie.20190552110.1002/anie.201905521 ↗
19. 10.1039/C8CS00853A10.1039/C8CS00853A ↗
20. 10.1021/acs.nanolett.3c0196210.1021/acs.nanolett.3c01962 ↗
21. 10.1002/aenm.20180369910.1002/aenm.201803699 ↗
22. 10.1021/acsenergylett.0c0135010.1021/acsenergylett.0c01350 ↗
23. 10.1002/adma.20190739610.1002/adma.201907396 ↗
24. 10.1021/acs.cgd.5b0095710.1021/acs.cgd.5b00957 ↗
25. 10.1021/acs.cgd.9b0131010.1021/acs.cgd.9b01310 ↗
26. 10.1021/ja104446r10.1021/ja104446r ↗
27. 10.1039/D0TC04186F10.1039/D0TC04186F ↗
28. 10.1002/adfm.20230501310.1002/adfm.202305013 ↗
29. 10.1021/acs.jpclett.2c0375010.1021/acs.jpclett.2c03750 ↗
30. 10.1021/acsami.2c1592810.1021/acsami.2c15928 ↗
31. 10.1002/anie.20230622910.1002/anie.202306229 ↗
32. 10.1002/adfm.20230756810.1002/adfm.202307568 ↗
33. 10.1038/s41586-022-05541-z10.1038/s41586-022-05541-z ↗
34. 10.1007/s40820-024-01514-110.1007/s40820-024-01514-1 ↗
35. 10.1021/acsenergylett.3c0247010.1021/acsenergylett.3c02470 ↗
36. 10.1002/aenm.20210356710.1002/aenm.202103567 ↗
37. 10.1126/science.adm947410.1126/science.adm9474 ↗
38. 10.1038/s41560-023-01250-710.1038/s41560-023-01250-7 ↗
39. 10.1002/anie.20170374410.1002/anie.201703744 ↗
40. 10.1002/adfm.20150181510.1002/adfm.201501815 ↗
41. 10.1002/pssa.20200029110.1002/pssa.202000291 ↗
42. 10.1021/acsenergylett.0c0259910.1021/acsenergylett.0c02599 ↗
43. 10.1002/adma.20240926110.1002/adma.202409261 ↗
44. 10.1039/D4EE01539H10.1039/D4EE01539H ↗
45. 10.1002/anie.20230522110.1002/anie.202305221 ↗
46. 10.1038/s41586-021-04372-810.1038/s41586-021-04372-8 ↗
47. 10.1126/science.adf019410.1126/science.adf0194 ↗