Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators

Doping of bulk semiconductors has revealed widespread success in optoelectronic applications. In the past few decades, substantial effort has been engaged for doping at the nanoscale. Recently, doped colloidal quantum dots (CQDs) have been demonstrated to be promising materials for luminescent solar...

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Main Authors: Sharma, Manoj, Gungor, Kivanc, Yeltik, Aydan, Olutas, Murat, Guzelturk, Burak, Kelestemur, Yusuf, Erdem, Talha, Delikanli, Savas, McBride, James R, Demir, Hilmi Volkan
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/142354
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spelling sg-ntu-dr.10356-1423542023-02-28T19:46:07Z Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators Sharma, Manoj Gungor, Kivanc Yeltik, Aydan Olutas, Murat Guzelturk, Burak Kelestemur, Yusuf Erdem, Talha Delikanli, Savas McBride, James R Demir, Hilmi Volkan School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays Engineering::Electrical and electronic engineering Copper Doping 2D Semiconductor Nanoplatelets Doping of bulk semiconductors has revealed widespread success in optoelectronic applications. In the past few decades, substantial effort has been engaged for doping at the nanoscale. Recently, doped colloidal quantum dots (CQDs) have been demonstrated to be promising materials for luminescent solar concentrators (LSCs) as they can be engineered for providing highly tunable and Stokes-shifted emission in the solar spectrum. However, existing doped CQDs that are aimed for full solar spectrum LSCs suffer from moderately low quantum efficiency, intrinsically small absorption cross-section, and gradually increasing absorption profiles coinciding with the emission spectrum, which together fundamentally limit their effective usage. Here, the authors show the first account of copper doping into atomically flat colloidal quantum wells (CQWs). In addition to Stokes-shifted and tunable dopant-induced photoluminescence emission, the copper doping into CQWs enables near-unity quantum efficiencies (up to ≈97%), accompanied by substantially high absorption cross-section and inherently step-like absorption profile, compared to those of the doped CQDs. Based on these exceptional properties, the authors have demonstrated by both experimental analysis and numerical modeling that these newly synthesized doped CQWs are excellent candidates for LSCs. These findings may open new directions for deployment of doped CQWs in LSCs for advanced solar light harvesting technologies. NRF (Natl Research Foundation, S’pore) ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2020-06-19T06:30:37Z 2020-06-19T06:30:37Z 2017 Journal Article Sharma, M., Gungor, K., Yeltik, A., Olutas, M., Guzelturk, B., Kelestemur, Y., . . . Demir, H. V. (2017). Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators. Advanced Maaterials, 29(30), 1700821-. doi:10.1002/adma.201700821 0935-9648 https://hdl.handle.net/10356/142354 10.1002/adma.201700821 28605062 2-s2.0-85020386553 30 29 1700821 (1 of 10) 1700821 (10 of 10) en Advanced Materials This is the accepted version of the following article: Sharma, M., Gungor, K., Yeltik, A., Olutas, M., Guzelturk, B., Kelestemur, Y., . . . Demir, H. V. (2017). Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators. Advanced Maaterials, 29(30), 1700821-, which has been published in final form at https://doi.org/10.1002/adma.201700821. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Copper Doping
2D Semiconductor Nanoplatelets
spellingShingle Engineering::Electrical and electronic engineering
Copper Doping
2D Semiconductor Nanoplatelets
Sharma, Manoj
Gungor, Kivanc
Yeltik, Aydan
Olutas, Murat
Guzelturk, Burak
Kelestemur, Yusuf
Erdem, Talha
Delikanli, Savas
McBride, James R
Demir, Hilmi Volkan
Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
description Doping of bulk semiconductors has revealed widespread success in optoelectronic applications. In the past few decades, substantial effort has been engaged for doping at the nanoscale. Recently, doped colloidal quantum dots (CQDs) have been demonstrated to be promising materials for luminescent solar concentrators (LSCs) as they can be engineered for providing highly tunable and Stokes-shifted emission in the solar spectrum. However, existing doped CQDs that are aimed for full solar spectrum LSCs suffer from moderately low quantum efficiency, intrinsically small absorption cross-section, and gradually increasing absorption profiles coinciding with the emission spectrum, which together fundamentally limit their effective usage. Here, the authors show the first account of copper doping into atomically flat colloidal quantum wells (CQWs). In addition to Stokes-shifted and tunable dopant-induced photoluminescence emission, the copper doping into CQWs enables near-unity quantum efficiencies (up to ≈97%), accompanied by substantially high absorption cross-section and inherently step-like absorption profile, compared to those of the doped CQDs. Based on these exceptional properties, the authors have demonstrated by both experimental analysis and numerical modeling that these newly synthesized doped CQWs are excellent candidates for LSCs. These findings may open new directions for deployment of doped CQWs in LSCs for advanced solar light harvesting technologies.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Sharma, Manoj
Gungor, Kivanc
Yeltik, Aydan
Olutas, Murat
Guzelturk, Burak
Kelestemur, Yusuf
Erdem, Talha
Delikanli, Savas
McBride, James R
Demir, Hilmi Volkan
format Article
author Sharma, Manoj
Gungor, Kivanc
Yeltik, Aydan
Olutas, Murat
Guzelturk, Burak
Kelestemur, Yusuf
Erdem, Talha
Delikanli, Savas
McBride, James R
Demir, Hilmi Volkan
author_sort Sharma, Manoj
title Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
title_short Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
title_full Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
title_fullStr Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
title_full_unstemmed Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
title_sort near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
publishDate 2020
url https://hdl.handle.net/10356/142354
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