高显色指数白光LED用新型单组分固态碳点的制备OA北大核心CSTPCD
Preparation of New Single Component Solid Carbon Dots for White LED with High Color Rendering Index
近年来,高显色指数白光LED照明需求对LED产业提出了新的挑战.碳点作为21世纪一种新型的纳米材料,因其具有制备工艺简单、稳定性高、光学可调谐及宽发射等优点,有望成为理想的高显色指数白光LED器件的单组分荧光粉.然而,碳点的聚集诱导荧光猝灭效应大大限制了其在固态照明上的应用发展.本文以菲啰啉为原料,采用微波法在温和制备工艺下合成出高效的荧光碳点,并通过掺杂技术实现该碳点的表面官能团调谐,成功地实现了一步法制备具有抗聚集诱导荧光猝灭效应的单组分固态碳点荧光粉,可应用于高显色指数白光LED器件,其固态量子产率高达37％,以它为荧光粉制备的白光LED表现出优异的光电性能.
In recent years,the demand for white LED lighting with high color rendering index has posed new chal-lenges to the LED industry.Carbon dots,as a new type of nanomaterial in the 21st century,is expected to become an ideal single component phosphor for white LED devices with high color rendering index,because of its advantages of simple preparation process,high stability,optical tunability and wide emission.However,aggregation-caused quenching (ACQ) of carbon dots greatly limits its application in solid-state lighting.In this paper,high-efficiency fluorescent carbon dots were synthesized by microwave method under mild preparation process with phenphenolline as raw material,and the surface functional group tuning of the carbon dots was realized by doping technique.One-component solid carbon dots phosphors with anti-ACQ were successfully prepared by one-step method,which can be applied to white LED devices with high color rendering index.Its solid quantum yield is as high as 37％,and the white LED prepared with it as phosphor shows excellent photoelectric performance.
黄彩艳;田蕊;张朵;段婷婷;李爱波;王琴;戎梅竹;汪正良
云南师范大学化学化工学院,云南昆明 650500云南民族大学化学与环境学院,云南昆明 650500
物理学
固态发光碳点LED
solid state luminescencecarbon dotsLED
《发光学报》 2024 (008)
1292-1300 / 9
国家自然科学基金(22165033);云南省基础研究计划重点项目(202301AS070002,202201AS070023);昆明市"春城计划"高层次人才项目(2022SCP005);大学生创新创业训练计划项目Supported by National Natural Science Foundation of China(22165033);Key Yunnan Fundamental Research Projects(202301AS070002,202201AS070023);Spring City Plan:the High-level Talent Promotion and Training Project of Kunming(2022SCP005);College Students Innovation and Entrepreneurship Training Program Project
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