气候变化领域集成服务门户(CCPortal): Universal approach toward high-efficiency two-dimensional perovskite solar cells: Via a vertical-rotation process

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DOI	10.1039/d0ee01833c
	Universal approach toward high-efficiency two-dimensional perovskite solar cells: Via a vertical-rotation process
	Yang Y.; Liu C.; Mahata A.; Li M.; Roldán-Carmona C.; Ding Y.; Arain Z.; Xu W.; Yang Y.; Schouwink P.A.; Züttel A.; De Angelis F.; Dai S.; Nazeeruddin M.K.
发表日期	2020
ISSN	17545692
起始页码	3093
结束页码	3101
卷号	13 期号:9
英文摘要	The emerging 2D perovskites exhibit superior stability and similar optoelectronic attributes compared to the 3D analogues, but their strong exciton-binding energy and inferior interlayer charge-transport reduce dramatically the device performance. Herein, we report a universal approach towards high-efficiency 2D perovskite solar cells (PSCs) by using the synergistic effect of NH4Cl and H2O to rotate the crystallographic orientation of 2D systems. The preferential adsorption of NH4Cl to the (202) crystal plane and the accelerated deprotonation of NH4+ by H2O guide the crystal growth of the 2D framework towards vertical out-of-plane orientation, which strongly improves the 2D crystallinity, charge mobility, and carrier lifetime. As a representative, (PEA)2(MA)3Pb4I13-based PSCs (n ≤ 4) prepared via the vertical-rotation process achieve a champion power conversion efficiency (PCE) of 17.03%, among the best PCEs reported for 2D PSCs. These findings offer a universal approach to rotate the orientation of 2D perovskites for efficient photovoltaics regardless of the perovskite composition. This journal is © The Royal Society of Chemistry.
英文关键词	Binding energy; Chlorine compounds; Conversion efficiency; Crystal orientation; Crystallinity; Hall mobility; Hole mobility; Lead compounds; Perovskite; Semiconductor quantum wells; Crystallographic orientations; Device performance; Exciton-binding energy; Out-of-plane orientation; Power conversion efficiencies; Preferential adsorption; Synergistic effect; Universal approach; Perovskite solar cells; concentration (composition); energy efficiency; fuel cell; performance assessment; perovskite; rotation; two-dimensional modeling
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189574
作者单位	Beijing Key Laboratory of Novel Thin-Film Solar Cells, Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China; Institute of Chemical Sciences and Engineering, EPFL Valais 1951 Email: Mdkhaja.nazeeruddin@epfl.ch, Sion, Switzerland; CompuNet, Istituto Italiano di Tecnologia Via Morego 30 16163, Genova, Italy; Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche Giulio Natta (CNR-SCITEC), Via Elce di Sotto 8, Perugia, 06123, Italy; Empa Materials Science and Technology, Dübendorf, CH-8600, Switzerland; Department of Chemistry Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, Perugia, 06123, Italy; Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
推荐引用方式 GB/T 7714	Yang Y.,Liu C.,Mahata A.,et al. Universal approach toward high-efficiency two-dimensional perovskite solar cells: Via a vertical-rotation process[J],2020,13(9).
APA	Yang Y..,Liu C..,Mahata A..,Li M..,Roldán-Carmona C..,...&Nazeeruddin M.K..(2020).Universal approach toward high-efficiency two-dimensional perovskite solar cells: Via a vertical-rotation process.Energy & Environmental Science,13(9).
MLA	Yang Y.,et al."Universal approach toward high-efficiency two-dimensional perovskite solar cells: Via a vertical-rotation process".Energy & Environmental Science 13.9(2020).