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Title: Low thermal budget, photonic-cured compact TiO2 layers for high-efficiency perovskite solar cells

Abstract

Rapid advances in organometallic trihalide perovskite solar cells (PSCs) have positioned them to be one of the leading next generation photovoltaic technologies. However, most of the high-performance PSCs, particularly those using compact TiO2 as an electron transport layer, require a high-temperature sintering step, which is not compatible with flexible polymer-based substrates. Considering the materials of interest for PSCs and corresponding device configurations, it is technologically imperative to fabricate high-efficiency cells at low thermal budget so that they can be realized on low-temperature plastic substrates. In this paper, we report on a new photonic curing technique that produces crystalline anatase-phase TiO2 films on indium tin oxide-coated glass and flexible polyethylene terephthalate (PET) substrates. Finally, the planar PSCs, using photonic-cured TiO2 films, exhibit PCEs as high as 15.0% and 11.2% on glass and flexible PET substrates, respectively, comparable to the device performance of PSCs incorporating furnace annealed TiO2 films.

Authors:
 [1];  [1];  [2];  [3];  [4];  [3];  [3];  [3]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Electrical Engineering and Computer Science
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1261306
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Materials Chemistry. A
Additional Journal Information:
Journal Volume: 4; Journal Issue: 24; Journal ID: ISSN 2050-7488
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY

Citation Formats

Das, Sanjib, Gu, Gong, Joshi, Pooran C., Yang, Bin, Aytug, Tolga, Rouleau, Christopher M., Geohegan, David B., and Xiao, Kai. Low thermal budget, photonic-cured compact TiO2 layers for high-efficiency perovskite solar cells. United States: N. p., 2016. Web. doi:10.1039/C6TA02105K.
Das, Sanjib, Gu, Gong, Joshi, Pooran C., Yang, Bin, Aytug, Tolga, Rouleau, Christopher M., Geohegan, David B., & Xiao, Kai. Low thermal budget, photonic-cured compact TiO2 layers for high-efficiency perovskite solar cells. United States. https://doi.org/10.1039/C6TA02105K
Das, Sanjib, Gu, Gong, Joshi, Pooran C., Yang, Bin, Aytug, Tolga, Rouleau, Christopher M., Geohegan, David B., and Xiao, Kai. Wed . "Low thermal budget, photonic-cured compact TiO2 layers for high-efficiency perovskite solar cells". United States. https://doi.org/10.1039/C6TA02105K. https://www.osti.gov/servlets/purl/1261306.
@article{osti_1261306,
title = {Low thermal budget, photonic-cured compact TiO2 layers for high-efficiency perovskite solar cells},
author = {Das, Sanjib and Gu, Gong and Joshi, Pooran C. and Yang, Bin and Aytug, Tolga and Rouleau, Christopher M. and Geohegan, David B. and Xiao, Kai},
abstractNote = {Rapid advances in organometallic trihalide perovskite solar cells (PSCs) have positioned them to be one of the leading next generation photovoltaic technologies. However, most of the high-performance PSCs, particularly those using compact TiO2 as an electron transport layer, require a high-temperature sintering step, which is not compatible with flexible polymer-based substrates. Considering the materials of interest for PSCs and corresponding device configurations, it is technologically imperative to fabricate high-efficiency cells at low thermal budget so that they can be realized on low-temperature plastic substrates. In this paper, we report on a new photonic curing technique that produces crystalline anatase-phase TiO2 films on indium tin oxide-coated glass and flexible polyethylene terephthalate (PET) substrates. Finally, the planar PSCs, using photonic-cured TiO2 films, exhibit PCEs as high as 15.0% and 11.2% on glass and flexible PET substrates, respectively, comparable to the device performance of PSCs incorporating furnace annealed TiO2 films.},
doi = {10.1039/C6TA02105K},
journal = {Journal of Materials Chemistry. A},
number = 24,
volume = 4,
place = {United States},
year = {Wed May 25 00:00:00 EDT 2016},
month = {Wed May 25 00:00:00 EDT 2016}
}

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