Imperial College London
Portrait Picture

Dr Robert Hoye, FIMMM CEng CSci

Faculty of Engineering, Department of Materials

Honorary Senior Lecturer
 
 
 
//

Contact

 

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

 
 
//

Location

 

2.27Royal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Peng:2020:10.1002/aenm.202002761,
author = {Peng, Y and Huq, T and Mei, J and Portilla, L and Jagt, RA and Occhipinti, L and MacManus-Driscoll, JL and Hoye, R and Pecunia, V},
doi = {10.1002/aenm.202002761},
journal = {Advanced Energy Materials},
pages = {1--12},
title = {Lead-free perovskite-inspired absorbers for indoor photovoltaics},
url = {http://dx.doi.org/10.1002/aenm.202002761},
volume = {11},
year = {2020}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - With the exponential rise in the market value and number of devices part of the Internet of Things (IoT), the demand for indoor photovoltaics (IPV) to power autonomous devices is predicted to rapidly increase. Leadfree perovskiteinspired materials (PIMs) have recently attracted significant attention in photovoltaics research, due to the similarity of their electronic structure to highperformance leadhalide perovskites, but without the same toxicity limitations. However, the capability of PIMs for indoor light harvesting has not yet been considered. Herein, two exemplar PIMs, BiOI and Cs3Sb2ClxI9x are examined. It is shown that while their bandgaps are too wide for singlejunction solar cells, they are close to the optimum for indoor light harvesting. As a result, while BiOI and Cs3Sb2ClxI9x devices are only circa 1%efficient under 1sun illumination, their efficiencies increase to 4–5% under indoor illumination. These efficiencies are within the range of reported values for hydrogenated amorphous silicon, i.e., the industry standard for IPV. It is demonstrated that such performance levels are already sufficient for millimeterscale PIM devices to power thinfilmtransistor circuits. Intensitydependent and optical loss analyses show that future improvements in efficiency are possible. Furthermore, calculations of the optically limited efficiency of these and other lowtoxicity PIMs reveal their considerable potential for IPV, thus encouraging future efforts for their exploration for powering IoT devices.
AU  - Peng,Y
AU  - Huq,T
AU  - Mei,J
AU  - Portilla,L
AU  - Jagt,RA
AU  - Occhipinti,L
AU  - MacManus-Driscoll,JL
AU  - Hoye,R
AU  - Pecunia,V
DO  - 10.1002/aenm.202002761
EP  - 12
PY  - 2020///
SN  - 1614-6832
SP  - 1
TI  - Lead-free perovskite-inspired absorbers for indoor photovoltaics
T2  - Advanced Energy Materials
UR  - http://dx.doi.org/10.1002/aenm.202002761
UR  - https://onlinelibrary.wiley.com/doi/10.1002/aenm.202002761
UR  - http://hdl.handle.net/10044/1/84889
VL  - 11
ER  -
Download