通过整合CdSe/ZnS量子点和MEH-PPV聚合物复合材料扩展光电探测器的光谱响应度

Expanding the Spectral Responsivity of Photodetectors via the Integration of CdSe/ZnS Quantum Dots and MEH-PPV Polymer Composite.

作者信息

Tran Thanh Thao, Nguyen Ha Trang, Sharma Ankush, Cho Young-Bin, Kumar Manjeet, Yun Ju-Hyung

机构信息

Department of Electrical Engineering, Incheon National University, Incheon 406772, Republic of Korea.

Water Environmental Analysis Center, Korea Testing & Research Institute (KTR), Gwacheon 13810, Republic of Korea.

出版信息

Polymers (Basel). 2024 Aug 21;16(16):2371. doi: 10.3390/polym16162371.

DOI:10.3390/polym16162371

PMID:39204591

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11359818/

Abstract

This study investigates the energy transfer mechanism between the organic polymer poly(2-methoxy-5(2'-ethyl)heroxyphenylenevinylene) (MEH-PPV) and CdSe/ZnS core-shell quantum dots (CdSe/ZnS CSQDs). Additionally, a hybrid ZnO-based photodetector (PD) is fabricated using the composite of MEH-PPV and CdSe/ZnS CSQDs, aiming to gain deeper insights. The combination of MEH-PPV and CdSe/ZnS CSQDs facilitates a broad spectral response in PDs, spanning from the ultraviolet (UV) to the visible range. In particular, PDs with QDs in the composite demonstrate notably excellent photosensitivity to both ultraviolet (UV) light (365 nm) (~~5 fold) and visible light (505 nm) (~~3 fold).

摘要

本研究探究了有机聚合物聚（2-甲氧基-5-（2'-乙基）己氧基苯撑乙烯）（MEH-PPV）与CdSe/ZnS核壳量子点（CdSe/ZnS CSQDs）之间的能量转移机制。此外，利用MEH-PPV与CdSe/ZnS CSQDs的复合材料制备了一种基于ZnO的混合光探测器（PD），旨在获得更深入的见解。MEH-PPV与CdSe/ZnS CSQDs的结合促进了光探测器的宽光谱响应，范围从紫外（UV）到可见光区域。特别是，复合材料中含有量子点的光探测器对紫外光（365 nm）（约5倍）和可见光（505 nm）（约3倍）均表现出显著优异的光敏性。