In situ synthesis of stretchable and highly stable multi-color carbon-dots/polyurethane composite films for light-emitting devices

doi:10.1039/c9ra06729a

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	In situ synthesis of stretchable and highly stable multi-color carbon-dots/polyurethane composite films for light-emitting devices
	Lian, Fei ; Wang, Chuanxi ; Wu, Qian ; Yang, Minghui ; Wang, Zhenyu ; Zhang, Chi
刊名	RSC ADVANCES
	2020
卷号	10 期号:3 页码:1281-1286
关键词	QUANTUM DOTS EMISSION PHOTOLUMINESCENCE NANOCLUSTERS LUMINESCENCE GREEN RED
DOI	10.1039/c9ra06729a
英文摘要	Multi-color-emissive fluorescent polymer nanocomposite films have potential applications in optoelectronic devices. Herein, stretchable, mechanically stable multi-color carbon-dots-based films are in situ fabricated by condensation and aging of carboxylated polyurethane in the presence of various carbon sources. As-prepared CDs/PU films emit different colors covering from blue (414 nm) to red (620 nm) by tuning reaction conditions. Moreover, CDs are fixed and have good dispersion in the PU matrix due to the interactions of amine groups from the carbon sources with the carboxylate group of PU. Thus, phase separation of composite films can be avoided. And, more than 90% of their emission intensity is preserved after soaking in water for 30 days, aging for up to 6 h at 100 degrees C, and subjecting to several cycles of stretching and natural recovery. These advantages are encouraging for the use of CDs/PU composite films in solid-state lighting applications. Remote multi-color LEDs have been fabricated by placing a down-conversion layer of CDs/PU films separated through coating them on the same chips (emission at 365 nm), with Commission Internationale de l'Eclairage color coordinates of (0.22, 0.23), (0.43, 0.53), (0.49, 0.46), and (0.41, 0.28), respectively.
学科主题	Chemistry
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20223]
专题	2020专题
作者单位	1.Wang, CX (corresponding author), Jiangnan Univ, Sch Environm & Civil Engn, Inst Environm Proc & Pollut Control, Wuxi 214122, Jiangsu, Peoples R China. 2.Zhang, C (corresponding author), Jiangnan Univ, Sch Chem & Mat Engn, Int Joint Res Ctr Photorespons Mol & Mat, Wuxi 214122, Jiangsu, Peoples R China. 3.Yang, MH (corresponding author), Chinese Acad Sci, Ningbo Inst Ind Technol, Inst New Energy Technol, Ningbo 315201, Peoples R China. 4.Zhang, C (corresponding author), Tongji Univ, Sch Chem Sci & Engn, 1239 Siping Rd, Shanghai 200092, Peoples R China.
推荐引用方式 GB/T 7714	Lian, Fei,Wang, Chuanxi,Wu, Qian,et al. In situ synthesis of stretchable and highly stable multi-color carbon-dots/polyurethane composite films for light-emitting devices[J]. RSC ADVANCES,2020,10(3):1281-1286.
APA	Lian, Fei,Wang, Chuanxi,Wu, Qian,Yang, Minghui,Wang, Zhenyu,&Zhang, Chi.(2020).In situ synthesis of stretchable and highly stable multi-color carbon-dots/polyurethane composite films for light-emitting devices.RSC ADVANCES,10(3),1281-1286.
MLA	Lian, Fei,et al."In situ synthesis of stretchable and highly stable multi-color carbon-dots/polyurethane composite films for light-emitting devices".RSC ADVANCES 10.3(2020):1281-1286.