Surface modification toward luminescent and stable silica-coated quantum dots color filter

Zhao, Bingxin1,2; Zhang, Xiaoli1; Bai, Xue1; Yang, Hongcheng1,3; Li, Shang1,3; Hao, Junjie3; Liu, Haochen1; Lu, Rui1; Xu, Bing1; Wang, Liduo1,2; Wang, Kai1; Sun, Xiao Wei1

2019-10

10.1007/s40843-019-9435-7

Science China-Materials   影响因子和分区

2095-8226

2199-4501

A highly pixelated and luminescent silica-coated quantum dot color filter (QDCF) was achieved by surface conjugation with epoxy functional group. Epoxy-functiona-lized silica-coated quantum dots (QDs) can be thoroughly mixed with SU-8 photoresist up to 25 wt.% without aggregation. The quantum yield (QY) of the silica-coated QDCF can be significantly improved from 19.3% to 36.5% after epoxy treatment. The pristine QDCF experienced a 40% QY decrease, while the epoxied silica-coated QDCF maintained its luminescence even after irradiation (300 mW cm (-2) @450 nm) for over 25 days. The well-controlled epoxy cap plays a critical role in attaining the ideal optical properties of the QDCF.

quantum dot silica coating color filter ligand exchange

SCI ; EI

英语

第一 ; 通讯

China Postdoctoral Science Foundation[2018M631443]

Materials Science

Materials Science, Multidisciplinary

WOS:000484955700011

SCIENCE PRESS

20192407033578

Color ; Luminescence ; Nanocrystals ; Photoresists ; Silica

Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Nanotechnology:761

Web of Science

1.Southern Univ Sci & Technol, Guangdong Univ Key Lab Adv Quantum Dot Displays &, Shenzhen Key Lab Adv Quantum Dot Displays & Light, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
3.Shenzhen Planck Innovat Technol Pte Ltd, Shenzhen 518112, Peoples R China

Zhao, Bingxin,Zhang, Xiaoli,Bai, Xue,et al. Surface modification toward luminescent and stable silica-coated quantum dots color filter[J]. Science China-Materials,2019,62(10):1463-1469.

Zhao, Bingxin.,Zhang, Xiaoli.,Bai, Xue.,Yang, Hongcheng.,Li, Shang.,...&Sun, Xiao Wei.(2019).Surface modification toward luminescent and stable silica-coated quantum dots color filter.Science China-Materials,62(10),1463-1469.

Zhao, Bingxin,et al."Surface modification toward luminescent and stable silica-coated quantum dots color filter".Science China-Materials 62.10(2019):1463-1469.