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Title: Dopant-Free Tetrakis-Triphenylamine Hole Transporting Material for Efficient Tin-Based Perovskite Solar Cells

Abstract

Developing dopant-free hole transporting layers (HTLs) is critical in achieving high-performance and robust state-of-the-art perovskite photovoltaics, especially for the air-sensitive tin-based perovskite systems. The commonly used HTLs require hygroscopic dopants and additives for optimal performance, which adds extra cost to manufacturing and limits long-term device stability. Here we demonstrate the use of a novel tetrakis-triphenylamine (TPE) small molecule prepared by a facile synthetic route as a superior dopant-free HTL for lead-free tin-based perovskite solar cells. The best-performing tin iodide perovskite cells employing the novel mixed-cation ethylenediammonium/formamidinium with the dopant-free TPE HTL achieve a power conversion efficiency as high as 7.23%, ascribed to the HTL’s suitable band alignment and excellent hole extraction/collection properties. This efficiency is one of the highest reported so far for tin halide perovskite systems, highlighting potential application of TPE HTL material in low-cost high-performance tin-based perovskite solar cells.

Authors:
ORCiD logo [1];  [2];  [2]; ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [2]; ORCiD logo [1]
  1. Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
  2. National Central Univ., Chung-Li (Taiwan). Dept. of Chemistry
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Argonne-Northwestern Solar Energy Research Center (ANSER)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1470385
Grant/Contract Number:  
SC0001059
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the American Chemical Society
Additional Journal Information:
Journal Volume: 140; Journal Issue: 1; Related Information: ANSER partners with Northwestern University (lead); Argonne National Laboratory; University of Chicago; University of Illinois, Urbana-Champaign; Yale University; Journal ID: ISSN 0002-7863
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; catalysis (homogeneous); catalysis (heterogeneous); solar (photovoltaic); solar (fuels); photosynthesis (natural and artificial); bio-inspired; hydrogen and fuel cells; electrodes - solar; defects; charge transport; spin dynamics; membrane; materials and chemistry by design; optics; synthesis (novel materials); synthesis (self-assembly)

Citation Formats

Ke, Weijun, Priyanka, Pragya, Vegiraju, Sureshraju, Stoumpos, Constantinos C., Spanopoulos, Ioannis, Soe, Chan Myae Myae, Marks, Tobin J., Chen, Ming-Chou, and Kanatzidis, Mercouri G. Dopant-Free Tetrakis-Triphenylamine Hole Transporting Material for Efficient Tin-Based Perovskite Solar Cells. United States: N. p., 2017. Web. doi:10.1021/jacs.7b10898.
Ke, Weijun, Priyanka, Pragya, Vegiraju, Sureshraju, Stoumpos, Constantinos C., Spanopoulos, Ioannis, Soe, Chan Myae Myae, Marks, Tobin J., Chen, Ming-Chou, & Kanatzidis, Mercouri G. Dopant-Free Tetrakis-Triphenylamine Hole Transporting Material for Efficient Tin-Based Perovskite Solar Cells. United States. https://doi.org/10.1021/jacs.7b10898
Ke, Weijun, Priyanka, Pragya, Vegiraju, Sureshraju, Stoumpos, Constantinos C., Spanopoulos, Ioannis, Soe, Chan Myae Myae, Marks, Tobin J., Chen, Ming-Chou, and Kanatzidis, Mercouri G. Wed . "Dopant-Free Tetrakis-Triphenylamine Hole Transporting Material for Efficient Tin-Based Perovskite Solar Cells". United States. https://doi.org/10.1021/jacs.7b10898. https://www.osti.gov/servlets/purl/1470385.
@article{osti_1470385,
title = {Dopant-Free Tetrakis-Triphenylamine Hole Transporting Material for Efficient Tin-Based Perovskite Solar Cells},
author = {Ke, Weijun and Priyanka, Pragya and Vegiraju, Sureshraju and Stoumpos, Constantinos C. and Spanopoulos, Ioannis and Soe, Chan Myae Myae and Marks, Tobin J. and Chen, Ming-Chou and Kanatzidis, Mercouri G.},
abstractNote = {Developing dopant-free hole transporting layers (HTLs) is critical in achieving high-performance and robust state-of-the-art perovskite photovoltaics, especially for the air-sensitive tin-based perovskite systems. The commonly used HTLs require hygroscopic dopants and additives for optimal performance, which adds extra cost to manufacturing and limits long-term device stability. Here we demonstrate the use of a novel tetrakis-triphenylamine (TPE) small molecule prepared by a facile synthetic route as a superior dopant-free HTL for lead-free tin-based perovskite solar cells. The best-performing tin iodide perovskite cells employing the novel mixed-cation ethylenediammonium/formamidinium with the dopant-free TPE HTL achieve a power conversion efficiency as high as 7.23%, ascribed to the HTL’s suitable band alignment and excellent hole extraction/collection properties. This efficiency is one of the highest reported so far for tin halide perovskite systems, highlighting potential application of TPE HTL material in low-cost high-performance tin-based perovskite solar cells.},
doi = {10.1021/jacs.7b10898},
journal = {Journal of the American Chemical Society},
number = 1,
volume = 140,
place = {United States},
year = {Wed Dec 06 00:00:00 EST 2017},
month = {Wed Dec 06 00:00:00 EST 2017}
}

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