Porous Organic Cage Induced Spontaneous Restructuring of Buried Interface Toward High‐Performance Perovskite Photovoltaic

Feng Gao; Chao Luo; Xianjin Wang; Changling Zhan; Yang Li; Yiming Li; Qingbo Meng; Miao Yang; Kongzhao Su; Daqiang Yuan; Rui Zhu; Qing Zhao

doi:10.1002/adfm.202211900

journal article·2023-04

Porous Organic Cage Induced Spontaneous Restructuring of Buried Interface Toward High‐Performance Perovskite Photovoltaic

Feng Gao, Chao Luo, Xianjin Wang, Changling Zhan, Yang Li, Yiming Li, Qingbo Meng, Miao Yang, Kongzhao Su, Daqiang Yuan, Rui Zhu, Qing Zhao

Advanced Functional Materials· Volume 33· Issue 17

Publisher page

Source abstract

Abstract

Abstract In perovskite solar cells (PSCs), the buried interface containing high concentrations of defects is critical for efficient charge extraction toward high‐performance device. Herein, porous organic cage (POC) is introduced between tin dioxide and perovskite to spontaneously reconstitute the buried interface. Through the chemical linkage formed by polydentate chelation of POC with SnO₂ and perovskite, the buried interface achieves greatly reduced defect density and enhanced carrier extraction. More importantly, it is found that iodide ions in aged devices to migrate down to the electron transport layer and even invade the ITO electrode, changing the work function of ITO. This detrimental effect can be well resolved by POC since the host‐guest interaction of POC can effectively suppress the iodide ions trying to migrate downward. As a result, the PSC fabricated by POC‐restructured strategy yields a superior PCE of 24.13%. Moreover, the unencapsulated PSCs exhibit conspicuous improved long‐term stability and retain 93% of its initial efficiency after 5000 h in ambient condition.

Source: crossref · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Advanced battery technologies research · Covalent Organic Framework Applications

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

Affiliations

State Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano‐optoelectronics School of Physics Peking University Beijing 100871 China

Key Laboratory for Renewable Energy Institute of Physics Chinese Academy of Sciences Beijing Key Laboratory for New Energy Materials and Devices Beijing 100190 China

State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China

Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China

Peking University Yangtze Delta Institute of Optoelectronics Nantong Jiangsu 226010 China

Collaborative Innovation Center of Quantum Matter Beijing 100084 China

Funding

National Natural Science Foundation of China · National Key Research and Development Program of China · Beijing Municipal Natural Science Foundation · Youth Innovation Promotion Association of the Chinese Academy of Sciences

References (53)

Show source-provided references

1. 10.1021/acs.chemrev.8b0053910.1021/acs.chemrev.8b00539 ↗

2. 10.1126/science.abh103510.1126/science.abh1035 ↗

3. 10.1002/aenm.20190265010.1002/aenm.201902650 ↗

4. 10.1039/C6EE00030D10.1039/C6EE00030D ↗

5. NREL Efficiency Chart 2020 https://www.nrel.gov/pv/assets/pdfs/best-reserch-cell-efficiencies.20220630.pdf(accessed: August2022).

6. 10.1002/smtd.20210085610.1002/smtd.202100856 ↗

7. 10.1038/s41467-018-07255-110.1038/s41467-018-07255-1 ↗

8. 10.1038/s41586-021-03964-810.1038/s41586-021-03964-8 ↗

9. 10.1126/science.124398210.1126/science.1243982 ↗

10. 10.1039/C9EE02020A10.1039/C9EE02020A ↗

11. 10.1126/science.aba089310.1126/science.aba0893 ↗

12. 10.1126/science.aai908110.1126/science.aai9081 ↗

13. 10.1038/s41586-021-03285-w10.1038/s41586-021-03285-w ↗

14. 10.1126/science.abh188510.1126/science.abh1885 ↗

15. 10.1002/adma.20210339410.1002/adma.202103394 ↗

16. 10.1126/science.abi632310.1126/science.abi6323 ↗

17. 10.1038/s41586-021-04372-810.1038/s41586-021-04372-8 ↗

18. 10.1039/D1EE01778K10.1039/D1EE01778K ↗

19. 10.1038/s41566-019-0398-210.1038/s41566-019-0398-2 ↗

20. Zhang F. · Science · 2022 · 375

21. 10.1002/adma.20200643510.1002/adma.202006435 ↗

22. 10.1038/nenergy.2016.17710.1038/nenergy.2016.177 ↗

23. 10.1002/adma.20200550410.1002/adma.202005504 ↗

24. 10.1002/aenm.20220041710.1002/aenm.202200417 ↗

25. 10.1002/adfm.20220472510.1002/adfm.202204725 ↗

26. 10.1002/aenm.20220036110.1002/aenm.202200361 ↗

27. 10.1021/acsenergylett.1c0254510.1021/acsenergylett.1c02545 ↗

28. 10.1002/adma.20210987910.1002/adma.202109879 ↗

29. 10.1002/adma.20220168110.1002/adma.202201681 ↗

30. Liu B. · Nano Energy · 2022 · 99

31. 10.1002/aenm.20210315110.1002/aenm.202103151 ↗

32. 10.1002/adma.20220314310.1002/adma.202203143 ↗

33. 10.1002/adma.20220210010.1002/adma.202202100 ↗

34. 10.1002/adfm.20220550710.1002/adfm.202205507 ↗

35. 10.1002/adma.20210611810.1002/adma.202106118 ↗

36. 10.1039/D0CS00573H10.1039/D0CS00573H ↗

37. 10.1016/j.trechm.2021.04.00410.1016/j.trechm.2021.04.004 ↗

38. 10.1038/lsa.2016.24310.1038/lsa.2016.243 ↗

39. 10.1038/ncomms849710.1038/ncomms8497 ↗

40. 10.1039/C5EE01265A10.1039/C5EE01265A ↗

41. 10.1002/adfm.20210782310.1002/adfm.202107823 ↗

42. 10.1039/D1SC04531H10.1039/D1SC04531H ↗

43. 10.1039/D2CS00123C10.1039/D2CS00123C ↗

44. 10.1021/acsami.1c0457310.1021/acsami.1c04573 ↗

45. 10.1038/s41467-022-29743-110.1038/s41467-022-29743-1 ↗

46. 10.1002/anie.20220501210.1002/anie.202205012 ↗

47. 10.1016/j.joule.2022.02.00310.1016/j.joule.2022.02.003 ↗

48. 10.1039/C9CC09906A10.1039/C9CC09906A ↗

49. 10.1016/j.joule.2021.12.00610.1016/j.joule.2021.12.006 ↗

50. 10.1038/s41560-021-00830-910.1038/s41560-021-00830-9 ↗

51. 10.1002/adma.20210323110.1002/adma.202103231 ↗

52. 10.1016/S0009-2614(03)00135-010.1016/S0009-2614(03)00135-0 ↗

53. 10.1002/aenm.20170236510.1002/aenm.201702365 ↗