Observation of hot carriers existing in Ag2S nanoparticles and its implication on solar cell application

S. Lin; Y. Feng; X. Wen; T. Harada; T. W. Kee; S. Huang; S. Shrestha; G. Conibeer

doi:10.1021/acs.jpcc.6b02607

Observation of hot carriers existing in Ag₂S nanoparticles and its implication on solar cell application

S. Lin, Y. Feng, X. Wen, T. Harada, T. W. Kee, S. Huang, S. Shrestha, G. Conibeer^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Silver sulfide (Ag₂S) 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 Ag₂S 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 Ag₂S NPs can potentially lead to efficiency of 33.6%, demonstrating potential application for the high-efficiency hot-carrier solar cell.

Original language	English
Pages (from-to)	10199-10205
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	120
Issue number	19
DOIs	https://doi.org/10.1021/acs.jpcc.6b02607
Publication status	Published - 19 May 2016
Externally published	Yes

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title = "Observation of hot carriers existing in Ag2S nanoparticles and its implication on solar cell application",

abstract = "Silver sulfide (Ag2S) 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 Ag2S 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 Ag2S NPs can potentially lead to efficiency of 33.6%, demonstrating potential application for the high-efficiency hot-carrier solar cell.",

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AU - Lin, S.

AU - Feng, Y.

AU - Wen, X.

AU - Harada, T.

AU - Kee, T. W.

AU - Huang, S.

AU - Shrestha, S.

AU - Conibeer, G.

PY - 2016/5/19

Y1 - 2016/5/19

N2 - Silver sulfide (Ag2S) 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 Ag2S 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 Ag2S NPs can potentially lead to efficiency of 33.6%, demonstrating potential application for the high-efficiency hot-carrier solar cell.

AB - Silver sulfide (Ag2S) 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 Ag2S 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 Ag2S NPs can potentially lead to efficiency of 33.6%, demonstrating potential application for the high-efficiency hot-carrier solar cell.

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Observation of hot carriers existing in Ag₂S nanoparticles and its implication on solar cell application

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