Surface modification toward luminescent and stable silica-coated quantum dots color filter通过表面钝化实现稳定发光的硅包覆量子点滤色片

被引：0
作者：
Bingxin Zhao
Xiaoli Zhang
Xue Bai
Hongcheng Yang
Shang Li
Junjie Hao
Haochen Liu
Rui Lu
Bing Xu
Liduo Wang
Kai Wang
Xiao Wei Sun
机构：
[1] Southern University of Science and Technology,Guangdong University Key Lab for Advanced Quantum Dot Displays and Lighting, Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting, Department of Electrical & Electronic Engineering
[2] Tsinghua University,Department of Chemistry
[3] Shenzhen Planck Innovation Technologies Pte. Ltd.,undefined
来源：
Science China Materials | 2019年 / 62卷
关键词：
quantum dot; silica coating; color filter; ligand exchange;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
引用
收藏
页码：1463 / 1469
页数：6
相关论文
共 113 条
[1]  
Yu D(2018)Room-temperature ion-exchange-mediated self-assembly toward formamidinium perovskite nano-plates with finely tunable, ultrapure green emissions for achieving Rec. 2020 displays Adv Funct Mater 28 1800248-148
[2]  
Cao F(2019)Emerging substance class with narrow-band blue/green-emitting rare earth phosphors for backlight display application Sci China Mater 62 146-167
[3]  
Gao Y(2016)High color-rendering warm-white lamps using quantum-dot color conversion films Opt Express 24 A1021-178
[4]  
Meijerink A(2013)Quantum dot-sensitized solar cells —perspective and recent developments: A review of Cd chalco-genide quantum dots as sensitizers Renew Sustain Energy Rev 22 148-8715
[5]  
Lien JY(2000)Characterization of CdSe and CdSe/CdS core/shell nanoclusters synthesized in aqueous solution Physica E-Low-dimensional Syst NanoStruct 8 174-782
[6]  
Chen CJ(1993)Synthesis and characterization of nearly monodisperse CdE (E = sulfur, selenium, tellurium) semiconductor nanocrystallites J Am Chem Soc 115 8706-16010
[7]  
Chiang RK(2014)SU-8 photolithography as a toolbox for carbon MEMS Micromachines 5 766-4493
[8]  
Jun HK(2016)Improved photoluminescence quantum yield and stability of CdSe-TOP, CdSe-ODA-TOPO, CdSe/CdS and CdSe/EP nanocomposites Mater Res Express 3 075904-16754
[9]  
Careem MA(2008)Optical properties of ZnO quantum dots in epoxy with controlled dispersion J Phys Chem C 112 16002-18548
[10]  
Arof AK(2002)Synthesis of CuS nanoparticles in water-in-carbon dioxide microemulsions Ind Eng Chem Res 41 4489-571
12345678910