Imperial College London

ProfessorNeilAlford

Central FacultyOffice of the Provost

Associate Provost (Academic Planning)
 
 
 
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Contact

 

+44 (0)20 7594 6724n.alford

 
 
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Assistant

 

Miss Catherine Graham +44 (0)20 7594 3330

 
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Location

 

2..05 (in RSM) or 3.09 (in the Faculty Building)Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zhang:2016:10.1038/srep23364,
author = {Zhang, X and Wu, X and Centeno, A and Ryan, M and alford, N and riley, D and Xie, F},
doi = {10.1038/srep23364},
journal = {Scientific Reports},
title = {Significant broadband photocurrent enhancement by Au-CZTS core-shell nanostructured photocathodes},
url = {http://dx.doi.org/10.1038/srep23364},
volume = {6},
year = {2016}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Copper zinc tin sulfide (CZTS) is a promising material for harvesting solar energy due to its abundance and non-toxicity. However, its poor performance hinders their wide application. In this paper gold (Au) nanoparticles are successfully incorporated into CZTS to form Au@CZTS core-shell nanostructures. The photocathode of Au@CZTS nanostructures exhibits enhanced optical absorption characteristics and improved incident photon-to-current efficiency (IPCE) performance. It is demonstrated that using this photocathode there is a significant increase of the power conversion efficiency (PCE) of a photoelectrochemical solar cell of 100% compared to using a CZTS without Au core. More importantly, the PCE of Au@CZTS photocathode improved by 15.8% compared to standard platinum (Pt) counter electrode. The increased efficiency is attributed to plasmon resonance energy transfer (PRET) between the Au nanoparticle core and the CZTS shell at wavelengths shorter than the localized surface plasmon resonance (LSPR) peak of the Au and the semiconductor bandgap.
AU - Zhang,X
AU - Wu,X
AU - Centeno,A
AU - Ryan,M
AU - alford,N
AU - riley,D
AU - Xie,F
DO - 10.1038/srep23364
PY - 2016///
SN - 2045-2322
TI - Significant broadband photocurrent enhancement by Au-CZTS core-shell nanostructured photocathodes
T2 - Scientific Reports
UR - http://dx.doi.org/10.1038/srep23364
UR - http://hdl.handle.net/10044/1/52464
VL - 6
ER -