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Efficient light harvesting in hybrid CdTe nanocrystal/bulk GaAs p-i-n photovoltaic devices

Efficient light harvesting in hybrid CdTe nanocrystal/bulk GaAs p-i-n photovoltaic devices
Efficient light harvesting in hybrid CdTe nanocrystal/bulk GaAs p-i-n photovoltaic devices
A hybrid colloidal CdTe nanocrystal/bulk GaAs p-i-n heterostructure is demonstrated to have potential for highly efficient light harvesting photovoltaic devices. An array of rectangular channels is fabricated on the surface of the GaAs heterostructure penetrating through its active layer and subsequently filled with water soluble CdTe nanocrystals emitting in the near infrared. Photogenerated carriers in the highly absorbing colloidal nanocrystals are efficiently transferred by means of nonradiative energy transfer to the patterned heterostructure possessing high carrier mobility and converted to electrical current. A threefold enhancement of both photocurrent and monochromatic power conversion efficiency has been achieved.
0003-6951
233502
Chanyawadee, Soontorn
81ced3b2-449f-4cbd-857a-e69fcc1c5fa8
Harley, Richard T.
54613031-f60f-45f4-9b20-e49bcfd53b77
Taylor, David
ad67dc6a-3678-48f8-a821-138c0fc23ca6
Henini, Mohamed
2467152b-d2db-4260-ba9f-94fa521ff883
Susha, Andrei S.
8637e4ed-d136-412a-896f-1d9df0fbab97
Rogach, Andrey L.
d53f43f1-5050-4402-8978-56805fc0914e
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Chanyawadee, Soontorn
81ced3b2-449f-4cbd-857a-e69fcc1c5fa8
Harley, Richard T.
54613031-f60f-45f4-9b20-e49bcfd53b77
Taylor, David
ad67dc6a-3678-48f8-a821-138c0fc23ca6
Henini, Mohamed
2467152b-d2db-4260-ba9f-94fa521ff883
Susha, Andrei S.
8637e4ed-d136-412a-896f-1d9df0fbab97
Rogach, Andrey L.
d53f43f1-5050-4402-8978-56805fc0914e
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf

Chanyawadee, Soontorn, Harley, Richard T., Taylor, David, Henini, Mohamed, Susha, Andrei S., Rogach, Andrey L. and Lagoudakis, Pavlos G. (2009) Efficient light harvesting in hybrid CdTe nanocrystal/bulk GaAs p-i-n photovoltaic devices. Applied Physics Letters, 94, 233502. (doi:10.1063/1.3148368).

Record type: Article

Abstract

A hybrid colloidal CdTe nanocrystal/bulk GaAs p-i-n heterostructure is demonstrated to have potential for highly efficient light harvesting photovoltaic devices. An array of rectangular channels is fabricated on the surface of the GaAs heterostructure penetrating through its active layer and subsequently filled with water soluble CdTe nanocrystals emitting in the near infrared. Photogenerated carriers in the highly absorbing colloidal nanocrystals are efficiently transferred by means of nonradiative energy transfer to the patterned heterostructure possessing high carrier mobility and converted to electrical current. A threefold enhancement of both photocurrent and monochromatic power conversion efficiency has been achieved.

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Published date: 2009

Identifiers

Local EPrints ID: 153379
URI: https://eprints.soton.ac.uk/id/eprint/153379
ISSN: 0003-6951
PURE UUID: 7fa30e4e-5e7f-4126-bf6b-5a6837eb7f12

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Date deposited: 19 May 2010 15:26
Last modified: 18 Jul 2017 12:51

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Contributors

Author: Soontorn Chanyawadee
Author: Richard T. Harley
Author: David Taylor
Author: Mohamed Henini
Author: Andrei S. Susha
Author: Andrey L. Rogach

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