期刊
ADVANCED MATERIALS
卷 34, 期 43, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202205504
关键词
heavy-metal-free quantum dots; high-resolution patterning; ligand crosslinking; photopatterning
类别
资金
- Samsung Research Funding & Incubation Center of Samsung Electronics [SRFC-MA1901-05]
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT, and Future Planning [2021M3H4A3A01062964, 2020M3D1A2101321]
- Samsung Display Co.
- National Research Foundation of Korea [2020M3D1A2101321, 2021M3H4A3A01062964] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This paper reports a nondestructive direct photopatterning method for heavy-metal-free quantum dots (QDs) using branched light-driven ligand crosslinkers (LiXers). It demonstrates the ability to create multicolored QD patterns on a micrometer scale without compromising the intrinsic optoelectronic properties of the QDs, and extends the device lifetime.
Electroluminescence from quantum dots (QDs) is a suitable photon source for futuristic displays offering hyper-realistic images with free-form factors. Accordingly, a nondestructive and scalable process capable of rendering multicolored QD patterns on a scale of several micrometers needs to be established. Here, nondestructive direct photopatterning for heavy-metal-free QDs is reported using branched light-driven ligand crosslinkers (LiXers) containing multiple azide units. The branched LiXers effectively interlock QD films via photo-crosslinking native aliphatic QD surface ligands without compromising the intrinsic optoelectronic properties of QDs. Using branched LiXers with six sterically engineered azide units, RGB QD patterns are achieved on the micrometer scale. The photo-crosslinking process does not affect the photoluminescence and electroluminescence characteristics of QDs and extends the device lifetime. This nondestructive method can be readily adapted to industrial processes and make an immediate impact on display technologies, as it uses widely available photolithography facilities and high-quality heavy-metal-free QDs with aliphatic ligands.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据