气候变化领域集成服务门户(CCPortal): Modulation of perovskite crystallization processes towards highly efficient and stable perovskite solar cells with MXene quantum dot-modified SnO2

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DOI	10.1039/d1ee00056j
	Modulation of perovskite crystallization processes towards highly efficient and stable perovskite solar cells with MXene quantum dot-modified SnO2
	Yang Y.; Lu H.; Feng S.; Yang L.; Dong H.; Wang J.; Tian C.; Li L.; Lu H.; Jeong J.; Zakeeruddin S.M.; Liu Y.; Grätzel M.; Hagfeldt A.
发表日期	2021
ISSN	17545692
起始页码	3447
结束页码	3454
卷号	14 期号:6
英文摘要	Nanocrystalline tin (iv) oxide (SnO2) electron-transport layers (ETL) have shown great potential for achieving highly efficient, stable perovskite solar cells (PSCs), in particular low-temperature-processed flexible PSCs. Recently, studies have further shown that a modified SnO2bottom layer facilitates the deposition of highly crystalline perovskite films, boosting the photovoltaic performance of the PSCs. The modulation of perovskite crystallization processes is a key to obtain highly crystalline and stable perovskite films; however, a fundamental understanding is still missing. Herein, we report anin situsynchrotron-based two-dimensional grazing-incidence X-ray diffraction technique to explore the SnO2ETL-modulated perovskite crystallization kinetics for the first time. The titanium carbide (Ti3C2Tx)-MXene quantum dot-modified SnO2(MQDs-SnO2) ETL was found to be able to rapidly induce perovskite nucleation from the precursor solution, forming an intermediate perovskite phase upon anti-solvent treatment. This substantially improves the crystal quality and phase stability of the as-fabricated perovskite film. Benefiting in addition from the superior charge extraction properties of the MQDs-SnO2layer, a steady-state power conversion efficiency of up to 23.3%, as well as outstanding stability against humidity and light soaking was achieved for the corresponding PSCs. © The Royal Society of Chemistry 2021.
英文关键词	Conversion efficiency; Crystallization kinetics; Electron transport properties; Modulation; Nanocrystals; Perovskite; Semiconductor quantum dots; Temperature; Tin oxides; Titanium carbide; Charge extraction; Crystal qualities; Crystallization process; Electron transport layers; Grazing incidence X-ray diffraction; Photovoltaic performance; Precursor solutions; Steady-state power; Perovskite solar cells; crystallization; energy efficiency; extraction method; fuel cell; low temperature; perovskite; quantum mechanics; reaction kinetics; solvent; steady-state equilibrium
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/190655
作者单位	Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Lab, Shanghai Advanced Research Institute &, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Laboratory of Photomolecular Science, Institute of Chemical Sciences Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland; Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, EPFL, Lausanne, CH-1015, Switzerland; Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi, Xi'an Jiaotong University, China; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; School of Microelectronics, Fudan University, Shanghai, 200433, China
推荐引用方式 GB/T 7714	Yang Y.,Lu H.,Feng S.,et al. Modulation of perovskite crystallization processes towards highly efficient and stable perovskite solar cells with MXene quantum dot-modified SnO2[J],2021,14(6).
APA	Yang Y..,Lu H..,Feng S..,Yang L..,Dong H..,...&Hagfeldt A..(2021).Modulation of perovskite crystallization processes towards highly efficient and stable perovskite solar cells with MXene quantum dot-modified SnO2.Energy & Environmental Science,14(6).
MLA	Yang Y.,et al."Modulation of perovskite crystallization processes towards highly efficient and stable perovskite solar cells with MXene quantum dot-modified SnO2".Energy & Environmental Science 14.6(2021).