Imperial College London
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Dr Robert Hoye, FIMMM CEng CSci

Faculty of Engineering, Department of Materials

Honorary Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 6048r.hoye Website

 
 
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Location

 

2.27Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Brandt:2017:10.1021/acs.chemmater.6b05496,
author = {Brandt, RE and Poindexter, JR and Gorai, P and Kurchin, RC and Hoye, RLZ and Nienhaus, L and Wilson, MWB and Polizzotti, JA and Sereika, R and altauskas, R and Lee, LC and MacManus-Driscoll, JL and Bawendi, M and Stevanovi, V and Buonassisi, T},
doi = {10.1021/acs.chemmater.6b05496},
journal = {Chemistry of Materials},
pages = {4667--4674},
title = {Searching for “Defect-Tolerant” Photovoltaic Materials: Combined Theoretical and Experimental Screening},
url = {http://dx.doi.org/10.1021/acs.chemmater.6b05496},
volume = {29},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Recently, we and others have proposed screening criteria for “defect-tolerant” photovoltaic (PV) absorbers, identifying several classes of semiconducting compounds with electronic structures similar to those of hybrid lead–halide perovskites. In this work, we reflect on the accuracy and prospects of these new design criteria through a combined experimental and theoretical approach. We construct a model to extract photoluminescence lifetimes of six of these candidate PV absorbers, including four (InI, SbSI, SbSeI, and BiOI) for which time-resolved photoluminescence has not been previously reported. The lifetimes of all six candidate materials exceed 1 ns, a threshold for promising early stage PV device performance. However, there are variations between these materials, and none achieve lifetimes as high as those of the hybrid lead–halide perovskites, suggesting that the heuristics for defect-tolerant semiconductors are incomplete. We explore this through first-principles point defect calculations and Shockley–Read–Hall recombination models to describe the variation between the measured materials. In light of these insights, we discuss the evolution of screening criteria for defect tolerance and high-performance PV materials.
AU  - Brandt,RE
AU  - Poindexter,JR
AU  - Gorai,P
AU  - Kurchin,RC
AU  - Hoye,RLZ
AU  - Nienhaus,L
AU  - Wilson,MWB
AU  - Polizzotti,JA
AU  - Sereika,R
AU  - altauskas,R
AU  - Lee,LC
AU  - MacManus-Driscoll,JL
AU  - Bawendi,M
AU  - Stevanovi,V
AU  - Buonassisi,T
DO  - 10.1021/acs.chemmater.6b05496
EP  - 4674
PY  - 2017///
SN  - 0897-4756
SP  - 4667
TI  - Searching for “Defect-Tolerant” Photovoltaic Materials: Combined Theoretical and Experimental Screening
T2  - Chemistry of Materials
UR  - http://dx.doi.org/10.1021/acs.chemmater.6b05496
UR  - https://pubs.acs.org/doi/10.1021/acs.chemmater.6b05496
VL  - 29
ER  -
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