Up-conversion device based on quantum dots with high-conversion efficiency over 6%

Haodong Tang; Kanming Shi; Nan Zhang; Zuoliang Wen; Xiangtian Xiao; Bing Xu; Haider Butt; Zoe Pikramenou; Kai Wang; Xiao Wei Sun

doi:10.1109/ACCESS.2020.2987043

Up-conversion device based on quantum dots with high-conversion efficiency over 6%

Haodong Tang
, Kanming Shi
, Nan Zhang
, Zuoliang Wen
, Xiangtian Xiao
, Bing Xu
, Haider Butt
, Zoe Pikramenou
, Kai Wang
, Xiao Wei Sun

Mechanical & Nuclear Engineering

South University of Science and Technology of China
Guangdong-Hong Kong-Macao Jt. Lab. for Photonic-Thermal-Electrical Energy Materials and Devices
University of Birmingham
Ltd.

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

19 Scopus citations

Abstract

Near infrared to visible up-conversion devices have every growing demand in a myriad of industrial sectors including photovoltaics, energy harvesting, medicine and imaging. Here we have demonstrated an up-conversion device which utilizes quantum dots for both infrared absorption and visible emission. The band structure of the device is designed and optimized with well-constructed carrier transport and blocking layers. The achieved up-conversion device exhibits an impressive conversion efficiency of over 6 %, with a high near infrared on-off ratio of over 10⁴. The device demonstrates a potential new approach for an up-conversion device designed solely on quantum dots with high efficiency.

Original language	British English
Article number	9063450
Pages (from-to)	71041-71049
Number of pages	9
Journal	IEEE Access
Volume	8
DOIs	https://doi.org/10.1109/ACCESS.2020.2987043
State	Published - 2020

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

NIR-visible up-conversion device
quantum dots
solution-processed

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10.1109/ACCESS.2020.2987043

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title = "Up-conversion device based on quantum dots with high-conversion efficiency over 6\%",

abstract = "Near infrared to visible up-conversion devices have every growing demand in a myriad of industrial sectors including photovoltaics, energy harvesting, medicine and imaging. Here we have demonstrated an up-conversion device which utilizes quantum dots for both infrared absorption and visible emission. The band structure of the device is designed and optimized with well-constructed carrier transport and blocking layers. The achieved up-conversion device exhibits an impressive conversion efficiency of over 6 \%, with a high near infrared on-off ratio of over 104. The device demonstrates a potential new approach for an up-conversion device designed solely on quantum dots with high efficiency.",

keywords = "NIR-visible up-conversion device, quantum dots, solution-processed",

author = "Haodong Tang and Kanming Shi and Nan Zhang and Zuoliang Wen and Xiangtian Xiao and Bing Xu and Haider Butt and Zoe Pikramenou and Kai Wang and Sun, \{Xiao Wei\}",

note = "Funding Information: This work was supported in part by the National Key Research and Development Program of China administrated by the Ministry of Science and Technology of China under Grant 2016YFB0401702 and Grant 2017YFE0120400, in part by the National Natural Science Foundation of China under Grant 61875082, Grant 61674074, and Grant 61704170, in part by the Natural Science Foundation of Guangdong under Grant 2017B030306010, in part by the Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting under Grant 2017KSYS007, in part by the Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting under Grant ZDSYS201707281632549, in part by the Shenzhen Peacock Team Project under Grant KQTD2016030111203005, in part by the Development and Reform Commission of Shenzhen Project under Grant [2017]1395, and in part by the High Level University Fund of Guangdong Province under Grant G02236001 and Grant G02236402. Publisher Copyright: {\textcopyright} 2013 IEEE.",

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doi = "10.1109/ACCESS.2020.2987043",

language = "British English",

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AU - Wen, Zuoliang

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AU - Xu, Bing

AU - Butt, Haider

AU - Pikramenou, Zoe

AU - Wang, Kai

AU - Sun, Xiao Wei

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N2 - Near infrared to visible up-conversion devices have every growing demand in a myriad of industrial sectors including photovoltaics, energy harvesting, medicine and imaging. Here we have demonstrated an up-conversion device which utilizes quantum dots for both infrared absorption and visible emission. The band structure of the device is designed and optimized with well-constructed carrier transport and blocking layers. The achieved up-conversion device exhibits an impressive conversion efficiency of over 6 %, with a high near infrared on-off ratio of over 104. The device demonstrates a potential new approach for an up-conversion device designed solely on quantum dots with high efficiency.

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Up-conversion device based on quantum dots with high-conversion efficiency over 6%

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