Solution-processed BiI3 thin films for photovoltaic applications: Improved carrier collection via solvent annealing
Abstract
Here, we report all-inorganic solar cells based on solution-processed BiI3. Two-electron donor solvents such as tetrahydrofuran and dimethylformamide were found to form adducts with BiI3, which make them highly soluble in these solvents. BiI3 thin films were deposited by spin-coating. Solvent annealing BiI3 thin films at relatively low temperatures (≤100 °C) resulted in increased grain size and crystallographic reorientation of grains within the films. The BiI3 films were stable against oxidation for several months and could withstand several hours of annealing in air at temperatures below 150 °C without degradation. Surface oxidation was found to improve photovoltaic device performance due to the formation of a BiOI layer at the BiI3 surface which facilitated hole extraction. Nonoptimized BiI3 solar cells achieved the highest power conversion efficiencies of 1.0%, demonstrating the potential of BiI3 as a nontoxic, air-stable metal-halide absorber material for photovoltaic applications.
- Authors:
-
- Iowa State Univ., Ames, IA (United States)
- (United States)
- Publication Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS)
- OSTI Identifier:
- 1337669
- Report Number(s):
- IS-J-9138
Journal ID: ISSN 0897-4756
- Grant/Contract Number:
- AC02-07CH11358
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Chemistry of Materials
- Additional Journal Information:
- Journal Volume: 28; Journal Issue: 18; Journal ID: ISSN 0897-4756
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Hamdeh, Umar H., Nelson, Rainie D., Ryan, Bradley J., Bhattacharjee, Ujjal, Ames Lab., Ames, IA, Petrich, Jacob W., Ames Lab., Ames, IA, and Panthani, Matthew G. Solution-processed BiI3 thin films for photovoltaic applications: Improved carrier collection via solvent annealing. United States: N. p., 2016.
Web. doi:10.1021/acs.chemmater.6b02347.
Hamdeh, Umar H., Nelson, Rainie D., Ryan, Bradley J., Bhattacharjee, Ujjal, Ames Lab., Ames, IA, Petrich, Jacob W., Ames Lab., Ames, IA, & Panthani, Matthew G. Solution-processed BiI3 thin films for photovoltaic applications: Improved carrier collection via solvent annealing. United States. https://doi.org/10.1021/acs.chemmater.6b02347
Hamdeh, Umar H., Nelson, Rainie D., Ryan, Bradley J., Bhattacharjee, Ujjal, Ames Lab., Ames, IA, Petrich, Jacob W., Ames Lab., Ames, IA, and Panthani, Matthew G. Fri .
"Solution-processed BiI3 thin films for photovoltaic applications: Improved carrier collection via solvent annealing". United States. https://doi.org/10.1021/acs.chemmater.6b02347. https://www.osti.gov/servlets/purl/1337669.
@article{osti_1337669,
title = {Solution-processed BiI3 thin films for photovoltaic applications: Improved carrier collection via solvent annealing},
author = {Hamdeh, Umar H. and Nelson, Rainie D. and Ryan, Bradley J. and Bhattacharjee, Ujjal and Ames Lab., Ames, IA and Petrich, Jacob W. and Ames Lab., Ames, IA and Panthani, Matthew G.},
abstractNote = {Here, we report all-inorganic solar cells based on solution-processed BiI3. Two-electron donor solvents such as tetrahydrofuran and dimethylformamide were found to form adducts with BiI3, which make them highly soluble in these solvents. BiI3 thin films were deposited by spin-coating. Solvent annealing BiI3 thin films at relatively low temperatures (≤100 °C) resulted in increased grain size and crystallographic reorientation of grains within the films. The BiI3 films were stable against oxidation for several months and could withstand several hours of annealing in air at temperatures below 150 °C without degradation. Surface oxidation was found to improve photovoltaic device performance due to the formation of a BiOI layer at the BiI3 surface which facilitated hole extraction. Nonoptimized BiI3 solar cells achieved the highest power conversion efficiencies of 1.0%, demonstrating the potential of BiI3 as a nontoxic, air-stable metal-halide absorber material for photovoltaic applications.},
doi = {10.1021/acs.chemmater.6b02347},
journal = {Chemistry of Materials},
number = 18,
volume = 28,
place = {United States},
year = {Fri Aug 26 00:00:00 EDT 2016},
month = {Fri Aug 26 00:00:00 EDT 2016}
}
Web of Science
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