Substituted lead halide perovskite intermediate band absorbers
Abstract
Lead halide perovskites have proven to be a versatile class of visible light absorbers that allow rapid access to the long minority carrier lifetimes and diffusion lengths desirable for traditional single-junction photovoltaics. Computational screening identified both Fe- and Co-substituted MAPbBr3 as promising intermediate band candidate materials, and the later films were synthesized via conventional solution-based processing techniques. First-principles density functional theory (DFT) calculations support the existence of intermediate bands upon Co incorporation and enhanced sub-gap absorption, which are confirmed by UV-visible-NIR absorption spectroscopy. The simple tenability combined with steady state and time-resolved PL studies that reveal no sign of self-quenching suggest this class of materials to be promising for intermediate band photovoltaics.
- Inventors:
- Issue Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1576245
- Patent Number(s):
- 10,428,100
- Application Number:
- 15/406,419
- Assignee:
- UChicago Argonne, LLC (Chicago, IL)
- DOE Contract Number:
- AC02-06CH11357; W-31-109-ENG-38
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2017 Jan 13
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Sampson, Matthew D., Chan, Maria K., and Martinson, Alex B. Substituted lead halide perovskite intermediate band absorbers. United States: N. p., 2019.
Web.
Sampson, Matthew D., Chan, Maria K., & Martinson, Alex B. Substituted lead halide perovskite intermediate band absorbers. United States.
Sampson, Matthew D., Chan, Maria K., and Martinson, Alex B. Tue .
"Substituted lead halide perovskite intermediate band absorbers". United States. https://www.osti.gov/servlets/purl/1576245.
@article{osti_1576245,
title = {Substituted lead halide perovskite intermediate band absorbers},
author = {Sampson, Matthew D. and Chan, Maria K. and Martinson, Alex B.},
abstractNote = {Lead halide perovskites have proven to be a versatile class of visible light absorbers that allow rapid access to the long minority carrier lifetimes and diffusion lengths desirable for traditional single-junction photovoltaics. Computational screening identified both Fe- and Co-substituted MAPbBr3 as promising intermediate band candidate materials, and the later films were synthesized via conventional solution-based processing techniques. First-principles density functional theory (DFT) calculations support the existence of intermediate bands upon Co incorporation and enhanced sub-gap absorption, which are confirmed by UV-visible-NIR absorption spectroscopy. The simple tenability combined with steady state and time-resolved PL studies that reveal no sign of self-quenching suggest this class of materials to be promising for intermediate band photovoltaics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}