Observation of hot carriers existing in Ag₂S nanoparticles and its implication on solar cell application
Date
2016
Authors
Lin, S.
Feng, Y.
Wen, X.
Harada, T.
Kee, T.
Huang, S.
Shrestha, S.
Conibeer, G.
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Journal article
Citation
The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter, 2016; 120(19):10199-10205
Statement of Responsibility
S. Lin, Y. Feng, X. Wen, T. Harada, T. W. Kee, S. Huang, S. Shrestha and G. Conibeer
Conference Name
Abstract
Silver sulfide, Ag, S, nanoparticle, NP, is a promising material for quantum-dot-based hot-carrier solar cell, yet the hot carrier dynamics of the material has not been thoroughly studied for this purpose. In this work, carrier cooling dynamics of Ag, S NP thin film were measured and analyzed using the transient absorption, TA, spectrometer. The NPs exhibit a relatively high carrier temperature and long carrier cooling time. This result was further verified by the carrier temperature extraction from steady-state photoluminescence, ssPL, spectrum. The long carrier cooling time in Ag, S NPs can potentially lead to efficiency of 33.6% demonstrating potential application for the high-efficiency hot-carrier solar cell.
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© 2016 American Chemical Society