Semiconductor nanocrystals‐based triplet‐triplet annihilation photon‐upconversion: Mechanism, materials and applications

Abstract Triplet‐triplet annihilation photon upconversion (TTA‐UC) has emerged as a promising strategy for enhancing solar energy harvesting efficiency by converting two low‐energy, long‐wavelength photons into a high‐energy, short‐wavelength photon. In recent years, semiconductor nanocrystals have...

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Main Authors: Kezhou Chen, Qingxin Luan, Tiegen Liu, Bo Albinsson, Lili Hou
Format: Article
Language:English
Published: Wiley 2025-02-01
Series:Responsive Materials
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Online Access:https://doi.org/10.1002/rpm.20240030
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author Kezhou Chen
Qingxin Luan
Tiegen Liu
Bo Albinsson
Lili Hou
author_facet Kezhou Chen
Qingxin Luan
Tiegen Liu
Bo Albinsson
Lili Hou
author_sort Kezhou Chen
collection DOAJ
description Abstract Triplet‐triplet annihilation photon upconversion (TTA‐UC) has emerged as a promising strategy for enhancing solar energy harvesting efficiency by converting two low‐energy, long‐wavelength photons into a high‐energy, short‐wavelength photon. In recent years, semiconductor nanocrystals have gained significant attention as efficient photosensitizers for TTA‐UC due to their excellent triplet energy transfer efficiency and the ability to tune their bandgap across the solar spectrum. This review focuses on the mechanism of NC‐based TTA‐UC, emphasizing key parameters to evaluate the performance of TTA‐UC systems. The influence of various material‐related factors on the overall NC‐based TTA‐UC performance is thoroughly discussed. Moreover, recent advances in solid‐state approaches for NC‐based TTA‐UC are highlighted, along with an overview of the current status of applications in this field. Lastly, this review identifies the challenges and opportunities that lie ahead in the future development of NC‐based TTA‐UC, providing insights into the potential advancements and directions for further research.
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issn 2834-8966
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publishDate 2025-02-01
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spelling doaj-art-1233602a87d440a4a18cda4e664d8e7d2025-08-20T02:02:09ZengWileyResponsive Materials2834-89662025-02-0131n/an/a10.1002/rpm.20240030Semiconductor nanocrystals‐based triplet‐triplet annihilation photon‐upconversion: Mechanism, materials and applicationsKezhou Chen0Qingxin Luan1Tiegen Liu2Bo Albinsson3Lili Hou4State Key Laboratory of Precision Measurment Technology and Instruments Tianjin University Tianjin ChinaState Key Laboratory of Precision Measurment Technology and Instruments Tianjin University Tianjin ChinaState Key Laboratory of Precision Measurment Technology and Instruments Tianjin University Tianjin ChinaDepartment of Chemistry and Chemical Engineering Chalmers University of Technology Gothenburg SwedenState Key Laboratory of Precision Measurment Technology and Instruments Tianjin University Tianjin ChinaAbstract Triplet‐triplet annihilation photon upconversion (TTA‐UC) has emerged as a promising strategy for enhancing solar energy harvesting efficiency by converting two low‐energy, long‐wavelength photons into a high‐energy, short‐wavelength photon. In recent years, semiconductor nanocrystals have gained significant attention as efficient photosensitizers for TTA‐UC due to their excellent triplet energy transfer efficiency and the ability to tune their bandgap across the solar spectrum. This review focuses on the mechanism of NC‐based TTA‐UC, emphasizing key parameters to evaluate the performance of TTA‐UC systems. The influence of various material‐related factors on the overall NC‐based TTA‐UC performance is thoroughly discussed. Moreover, recent advances in solid‐state approaches for NC‐based TTA‐UC are highlighted, along with an overview of the current status of applications in this field. Lastly, this review identifies the challenges and opportunities that lie ahead in the future development of NC‐based TTA‐UC, providing insights into the potential advancements and directions for further research.https://doi.org/10.1002/rpm.20240030semiconductor nanocrystalssolar energy harvestingtriplet energy transfertriplet‐triplet annihilation photon upconversion
spellingShingle Kezhou Chen
Qingxin Luan
Tiegen Liu
Bo Albinsson
Lili Hou
Semiconductor nanocrystals‐based triplet‐triplet annihilation photon‐upconversion: Mechanism, materials and applications
Responsive Materials
semiconductor nanocrystals
solar energy harvesting
triplet energy transfer
triplet‐triplet annihilation photon upconversion
title Semiconductor nanocrystals‐based triplet‐triplet annihilation photon‐upconversion: Mechanism, materials and applications
title_full Semiconductor nanocrystals‐based triplet‐triplet annihilation photon‐upconversion: Mechanism, materials and applications
title_fullStr Semiconductor nanocrystals‐based triplet‐triplet annihilation photon‐upconversion: Mechanism, materials and applications
title_full_unstemmed Semiconductor nanocrystals‐based triplet‐triplet annihilation photon‐upconversion: Mechanism, materials and applications
title_short Semiconductor nanocrystals‐based triplet‐triplet annihilation photon‐upconversion: Mechanism, materials and applications
title_sort semiconductor nanocrystals based triplet triplet annihilation photon upconversion mechanism materials and applications
topic semiconductor nanocrystals
solar energy harvesting
triplet energy transfer
triplet‐triplet annihilation photon upconversion
url https://doi.org/10.1002/rpm.20240030
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AT qingxinluan semiconductornanocrystalsbasedtriplettripletannihilationphotonupconversionmechanismmaterialsandapplications
AT tiegenliu semiconductornanocrystalsbasedtriplettripletannihilationphotonupconversionmechanismmaterialsandapplications
AT boalbinsson semiconductornanocrystalsbasedtriplettripletannihilationphotonupconversionmechanismmaterialsandapplications
AT lilihou semiconductornanocrystalsbasedtriplettripletannihilationphotonupconversionmechanismmaterialsandapplications