A highly pixelated and luminescent silica-coated quantum dot color filter(QDCF)was achieved by surface conjugation with epoxy functional group.Epoxy-functionalized silica-coated quantum dots(QDs)can be thoroughly mixe...A highly pixelated and luminescent silica-coated quantum dot color filter(QDCF)was achieved by surface conjugation with epoxy functional group.Epoxy-functionalized 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.展开更多
基金supported by the National Key Research and Development Program of China administrated by the Ministry of Science and Technology of China(2016YFB0401702)the National Natural Science Foundation of China(61674074,61704072 and61405089)+11 种基金Shenzhen Innovation Project(JCYJ20160301113537474)Shenzhen Basic Research Project(JCYJ20170817112012493)Development and Reform Commission of Shenzhen Project([2017]1395)Shenzhen Peacock Team Project(KQTD2016030111203005)Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting(ZDSYS201707281632549)Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting(2017KSYS007)Distinguished Young Scholar of National Natural Science Foundation of Guangdong(2017B030306010)Tianjin Zhonghuan Quantum Tech Co.,Ltd.(18YFZCGX00580)the start-up fund from Southern University of Science and Technologysupported by the Pico Center at SUSTech that received support from Presidential fundDevelopment and Reform Commission of Shenzhen MunicipalityChina Postdoctoral Science Foundation Grant(2018M631443)
文摘A highly pixelated and luminescent silica-coated quantum dot color filter(QDCF)was achieved by surface conjugation with epoxy functional group.Epoxy-functionalized 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.