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Title: Thermally evaporated methylammonium tin triiodide thin films for lead-free perovskite solar cell fabrication

Abstract

Here, we report on the synthesis of methylammonium tin triiodide (MASnI 3) thin films at room temperature by a hybrid thermal evaporation method and their application in fabricating lead (Pb)-free perovskite solar cells. The as-deposited MASnI 3 thin films exhibit smooth surfaces, uniform coverage across the entire substrate, and strong crystallographic preferred orientation along the < 100 > direction. By incorporating this film with an inverted planar device architecture, our Pb-free perovskite solar cells are able to achieve an open-circuit voltage ( V oc) up to 494 mV. The relatively high V oc is mainly ascribed to the excellent surface coverage, the compact morphology, the good stoichiometry control of the MASnI 3 thin films, and the effective passivation of the electron-blocking and hole-blocking layers. Finally, our results demonstrate the potential capability of the hybrid evaporation method to prepare high-quality Pb-free MASnI 3 perovskite thin films which can be used to fabricate efficient Pb-free perovskite solar cells.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [1]
  1. The Univ. of Toledo, Toledo, OH (United States)
  2. Nanjing Univ. of Posts & Telecommunications, Nanjing (People's Republic of China)
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S); USDOE SunShot Initiative, Next Generation Photovoltaics 3 Program
OSTI Identifier:
1329460
Report Number(s):
NREL/JA-5900-67300
Journal ID: ISSN 2046-2069; RSCACL
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
RSC Advances
Additional Journal Information:
Journal Volume: 6; Journal Issue: 93; Journal ID: ISSN 2046-2069
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; methylammonium tin triiodide; thin films; fabrication; synthesis

Citation Formats

Yu, Yue, Zhao, Dewei, Grice, Corey R., Meng, Weiwei, Wang, Changlei, Liao, Weiqiang, Cimaroli, Alexander J., Zhang, Hongmei, Zhu, Kai, and Yan, Yanfa. Thermally evaporated methylammonium tin triiodide thin films for lead-free perovskite solar cell fabrication. United States: N. p., 2016. Web. doi:10.1039/C6RA19476A.
Yu, Yue, Zhao, Dewei, Grice, Corey R., Meng, Weiwei, Wang, Changlei, Liao, Weiqiang, Cimaroli, Alexander J., Zhang, Hongmei, Zhu, Kai, & Yan, Yanfa. Thermally evaporated methylammonium tin triiodide thin films for lead-free perovskite solar cell fabrication. United States. doi:10.1039/C6RA19476A.
Yu, Yue, Zhao, Dewei, Grice, Corey R., Meng, Weiwei, Wang, Changlei, Liao, Weiqiang, Cimaroli, Alexander J., Zhang, Hongmei, Zhu, Kai, and Yan, Yanfa. Fri . "Thermally evaporated methylammonium tin triiodide thin films for lead-free perovskite solar cell fabrication". United States. doi:10.1039/C6RA19476A. https://www.osti.gov/servlets/purl/1329460.
@article{osti_1329460,
title = {Thermally evaporated methylammonium tin triiodide thin films for lead-free perovskite solar cell fabrication},
author = {Yu, Yue and Zhao, Dewei and Grice, Corey R. and Meng, Weiwei and Wang, Changlei and Liao, Weiqiang and Cimaroli, Alexander J. and Zhang, Hongmei and Zhu, Kai and Yan, Yanfa},
abstractNote = {Here, we report on the synthesis of methylammonium tin triiodide (MASnI3) thin films at room temperature by a hybrid thermal evaporation method and their application in fabricating lead (Pb)-free perovskite solar cells. The as-deposited MASnI3 thin films exhibit smooth surfaces, uniform coverage across the entire substrate, and strong crystallographic preferred orientation along the < 100 > direction. By incorporating this film with an inverted planar device architecture, our Pb-free perovskite solar cells are able to achieve an open-circuit voltage (Voc) up to 494 mV. The relatively high Voc is mainly ascribed to the excellent surface coverage, the compact morphology, the good stoichiometry control of the MASnI3 thin films, and the effective passivation of the electron-blocking and hole-blocking layers. Finally, our results demonstrate the potential capability of the hybrid evaporation method to prepare high-quality Pb-free MASnI3 perovskite thin films which can be used to fabricate efficient Pb-free perovskite solar cells.},
doi = {10.1039/C6RA19476A},
journal = {RSC Advances},
number = 93,
volume = 6,
place = {United States},
year = {Fri Sep 16 00:00:00 EDT 2016},
month = {Fri Sep 16 00:00:00 EDT 2016}
}

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