Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/142354
Title: Near-unity emitting copper-doped colloidal semiconductor quantum wells for luminescent solar concentrators
Authors: Sharma, Manoj
Gungor, Kivanc
Yeltik, Aydan
Olutas, Murat
Guzelturk, Burak
Kelestemur, Yusuf
Erdem, Talha
Delikanli, Savas
McBride, James R
Demir, Hilmi Volkan
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2017
Source: 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
Journal: Advanced Materials
Abstract: 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.
URI: https://hdl.handle.net/10356/142354
ISSN: 0935-9648
DOI: 10.1002/adma.201700821
Rights: 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].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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