Hot Carrier solar cell absorbers: materials, mechanisms and nanostructures

Gavin Conibeer; Santosh Shrestha; Shujuan Huang; Robert Patterson; Hongze Xia; Yu Feng; Pengfei Zhang; Neeti Gupta; Murad Tayebjee; Suntrana Smyth; Yuanxun Liao; Zhilong Zhang; Simon Chung; Shu Lin; Pei Wang; Xi Dai

doi:10.1117/12.2067926

Hot Carrier solar cell absorbers: materials, mechanisms and nanostructures

Gavin Conibeer^*, Santosh Shrestha, Shujuan Huang, Robert Patterson, Hongze Xia, Yu Feng, Pengfei Zhang, Neeti Gupta, Murad Tayebjee, Suntrana Smyth, Yuanxun Liao, Zhilong Zhang, Simon Chung, Shu Lin, Pei Wang, Xi Dai

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

12 Citations (Scopus)

Abstract

The hot carrier cell aims to extract the electrical energy from photo-generated carriers before they thermalize to the band edges. Hence it can potentially achieve a high current and a high voltage and hence very high efficiencies up to 65% under 1 sun and 86% under maximum concentration. To slow the rate of carrier thermalisation is very challenging, but modification of the phonon energies and the use of nanostructures are both promising ways to achieve some of the required slowing of carrier cooling. A number of materials and structures are being investigated with these properties and test structures are being fabricated. Initial measurements indicate slowed carrier cooling in III-Vs with large phonon band gaps and in multiple quantum wells. It is expected that soon proof of concept of hot carrier devices will pave the way for their development to fully functioning high efficiency solar cells.

Original language	English
Title of host publication	Next Generation Technologies for Solar Energy Conversion V
Editors	Oleg V. Sulima, Gavin Conibeer
Place of Publication	Bellingham, WA
Publisher	SPIE
Pages	1-11
Number of pages	11
ISBN (Electronic)	9781628412055
DOIs	https://doi.org/10.1117/12.2067926
Publication status	Published - 2014
Externally published	Yes
Event	Next Generation Technologies for Solar Energy Conversion V - San Diego, United States Duration: 19 Aug 2014 → 20 Aug 2014

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	9178
ISSN (Print)	0277-786X

Conference

Conference	Next Generation Technologies for Solar Energy Conversion V
Country/Territory	United States
City	San Diego
Period	19/08/14 → 20/08/14

Keywords

phonons
carrier cooling
hot carriers
time resolved photoluminescence
Klemens decay
multiple quantum wells

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Conibeer, G., Shrestha, S., Huang, S., Patterson, R., Xia, H., Feng, Y., Zhang, P., Gupta, N., Tayebjee, M., Smyth, S., Liao, Y., Zhang, Z., Chung, S., Lin, S., Wang, P., & Dai, X. (2014). Hot Carrier solar cell absorbers: materials, mechanisms and nanostructures. In O. V. Sulima, & G. Conibeer (Eds.), Next Generation Technologies for Solar Energy Conversion V (pp. 1-11). Article 917802 (Proceedings of SPIE; Vol. 9178). SPIE. https://doi.org/10.1117/12.2067926

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title = "Hot Carrier solar cell absorbers: materials, mechanisms and nanostructures",

abstract = "The hot carrier cell aims to extract the electrical energy from photo-generated carriers before they thermalize to the band edges. Hence it can potentially achieve a high current and a high voltage and hence very high efficiencies up to 65\% under 1 sun and 86\% under maximum concentration. To slow the rate of carrier thermalisation is very challenging, but modification of the phonon energies and the use of nanostructures are both promising ways to achieve some of the required slowing of carrier cooling. A number of materials and structures are being investigated with these properties and test structures are being fabricated. Initial measurements indicate slowed carrier cooling in III-Vs with large phonon band gaps and in multiple quantum wells. It is expected that soon proof of concept of hot carrier devices will pave the way for their development to fully functioning high efficiency solar cells.",

keywords = "phonons, carrier cooling, hot carriers, time resolved photoluminescence, Klemens decay, multiple quantum wells",

author = "Gavin Conibeer and Santosh Shrestha and Shujuan Huang and Robert Patterson and Hongze Xia and Yu Feng and Pengfei Zhang and Neeti Gupta and Murad Tayebjee and Suntrana Smyth and Yuanxun Liao and Zhilong Zhang and Simon Chung and Shu Lin and Pei Wang and Xi Dai",

year = "2014",

doi = "10.1117/12.2067926",

language = "English",

series = "Proceedings of SPIE",

publisher = "SPIE",

pages = "1--11",

editor = "Sulima, \{Oleg V.\} and Gavin Conibeer",

booktitle = "Next Generation Technologies for Solar Energy Conversion V",

address = "United States",

note = "Next Generation Technologies for Solar Energy Conversion V ; Conference date: 19-08-2014 Through 20-08-2014",

}

Conibeer, G, Shrestha, S, Huang, S, Patterson, R, Xia, H, Feng, Y, Zhang, P, Gupta, N, Tayebjee, M, Smyth, S, Liao, Y, Zhang, Z, Chung, S, Lin, S, Wang, P & Dai, X 2014, Hot Carrier solar cell absorbers: materials, mechanisms and nanostructures. in OV Sulima & G Conibeer (eds), Next Generation Technologies for Solar Energy Conversion V., 917802, Proceedings of SPIE, vol. 9178, SPIE, Bellingham, WA, pp. 1-11, Next Generation Technologies for Solar Energy Conversion V, San Diego, United States, 19/08/14. https://doi.org/10.1117/12.2067926

Hot Carrier solar cell absorbers: materials, mechanisms and nanostructures. / Conibeer, Gavin; Shrestha, Santosh; Huang, Shujuan et al.
Next Generation Technologies for Solar Energy Conversion V. ed. / Oleg V. Sulima; Gavin Conibeer. Bellingham, WA: SPIE, 2014. p. 1-11 917802 (Proceedings of SPIE; Vol. 9178).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - Hot Carrier solar cell absorbers

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AU - Conibeer, Gavin

AU - Shrestha, Santosh

AU - Huang, Shujuan

AU - Patterson, Robert

AU - Xia, Hongze

AU - Feng, Yu

AU - Zhang, Pengfei

AU - Gupta, Neeti

AU - Tayebjee, Murad

AU - Smyth, Suntrana

AU - Liao, Yuanxun

AU - Zhang, Zhilong

AU - Chung, Simon

AU - Lin, Shu

AU - Wang, Pei

AU - Dai, Xi

PY - 2014

Y1 - 2014

N2 - The hot carrier cell aims to extract the electrical energy from photo-generated carriers before they thermalize to the band edges. Hence it can potentially achieve a high current and a high voltage and hence very high efficiencies up to 65% under 1 sun and 86% under maximum concentration. To slow the rate of carrier thermalisation is very challenging, but modification of the phonon energies and the use of nanostructures are both promising ways to achieve some of the required slowing of carrier cooling. A number of materials and structures are being investigated with these properties and test structures are being fabricated. Initial measurements indicate slowed carrier cooling in III-Vs with large phonon band gaps and in multiple quantum wells. It is expected that soon proof of concept of hot carrier devices will pave the way for their development to fully functioning high efficiency solar cells.

AB - The hot carrier cell aims to extract the electrical energy from photo-generated carriers before they thermalize to the band edges. Hence it can potentially achieve a high current and a high voltage and hence very high efficiencies up to 65% under 1 sun and 86% under maximum concentration. To slow the rate of carrier thermalisation is very challenging, but modification of the phonon energies and the use of nanostructures are both promising ways to achieve some of the required slowing of carrier cooling. A number of materials and structures are being investigated with these properties and test structures are being fabricated. Initial measurements indicate slowed carrier cooling in III-Vs with large phonon band gaps and in multiple quantum wells. It is expected that soon proof of concept of hot carrier devices will pave the way for their development to fully functioning high efficiency solar cells.

KW - phonons

KW - carrier cooling

KW - hot carriers

KW - time resolved photoluminescence

KW - Klemens decay

KW - multiple quantum wells

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BT - Next Generation Technologies for Solar Energy Conversion V

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PB - SPIE

CY - Bellingham, WA

Y2 - 19 August 2014 through 20 August 2014

ER -

Hot Carrier solar cell absorbers: materials, mechanisms and nanostructures

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Keywords

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