Anion Confinement for Homogeneous Mixed Halide Perovskite Film Growth by Electrospray

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 45 vom: 10. Nov., Seite e2305822
1. Verfasser:	Niu, Xiuxiu (VerfasserIn)
Weitere Verfasser:	Li, Nengxu, Cui, Zhenhua, Li, Liang, Pei, Fengtao, Lan, Yisha, Song, Qizhen, Du, Yujiang, Dou, Jing, Bao, Zhaoboxun, Wang, Lina, Liu, Huifen, Li, Kailin, Zhang, Xinran, Huang, Zijian, Wang, Lan, Zhou, Wentao, Yuan, Guizhou, Chen, Yihua, Zhou, Huanping, Zhu, Cheng, Liu, Guilin, Bai, Yang, Chen, Qi
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2023
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article electrospray homogeneity solar cells stability

Beschreibung
Zusammenfassung:	© 2023 Wiley-VCH GmbH. Wide-bandgap perovskites are promising absorbers for state-of-the-art tandem solar cells to feasibly surpass Shockley-Queisser limit with low cost. However, the commonly used mixed halide perovskites suffer from poor stability; particularly, photoinduced phase segregation. Electrospray deposition is developed to bridge the gap of growth rate between iodide and bromide components during film growth by spatially confining the anion diffusion and eliminating the kinetic difference, which universally improves the initial homogeneity of perovskite films regardless of device architectures. It thus promotes the efficiency and stability of corresponding solar cells based on wide-bandgap (1.68 eV) absorbers. Remarkable power conversion efficiencies (PCEs) of 21.44% and 20.77% are achieved in 0.08 cm2 and 1.0 cm2 devices, respectively. In addition, these devices maintain 90% of their initial PCE after 1550 h of stabilized power output (SPO) tracking upon one sun irradiation (LED) at room temperature
Beschreibung:	Date Revised 09.11.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202305822