DataVXACS Applied Materials & InterfacesPaper
journal article·2016-12-21Open access

Approximately 800-nm-Thick Pinhole-Free Perovskite Films via Facile Solvent Retarding Process for Efficient Planar Solar Cells

Zhongcheng Yuan, Yingguo Yang, Zhongwei Wu, Sai Bai, Weidong Xu, Tao Song, Xingyu Gao, Feng Gao, Baoquan Sun

ACS Applied Materials & Interfaces· Volume 8· Issue 50
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Source abstract

Abstract

Device performance of organometal halide perovskite solar cells significantly depends on the quality and thickness of perovskite absorber films. However, conventional deposition methods often generate pinholes within ∼300 nm-thick perovskite films, which are detrimental to the large area device manufacture. Here we demonstrated a simple solvent retarding process to deposit uniform pinhole free perovskite films with thicknesses up to ∼800 nm. Solvent evaporation during the retarding process facilitated the components separation in the mixed halide perovskite precursors, and hence the final films exhibited pinhole free morphology and large grain sizes. In addition, the increased precursor concentration after solvent-retarding process led to thick perovskite films. Based on the uniform and thick perovskite films prepared by this convenient process, a champion device efficiency up to 16.8% was achieved. We believe that this simple deposition procedure for high quality perovskite films around micrometer thickness has a great potential in the application of large area perovskite solar cells and other optoelectronic devices.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materialsMaterials processing

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films

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

Affiliations

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China

Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-58183, Sweden

Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Institute of Applied Physics, Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

Funding

Svenska Forskningsrådet Formas · Vetenskapsrådet · Natural Science Foundation of Jiangsu Province · Carl Tryggers Stiftelse för Vetenskaplig Forskning · Directorate-General for Research and Innovation · China Scholarship Council · National Natural Science Foundation of China · Collaborative Innovation Center of Suzhou Nano Science and Technology · Priority Academic Program Development of Jiangsu Higher Education Institutions

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