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Title: 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}
}

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