发光二极管
量子点
材料科学
光电子学
墨水池
二极管
堆栈(抽象数据类型)
纳米技术
同种类的
电致发光
计算机科学
物理
热力学
复合材料
程序设计语言
作者
Bong Hoon Kim,M. Serdar Onses,Jong Bin Lim,Sooji Nam,Nuri Oh,Hojun Kim,Ki Jun Yu,Jung Woo Lee,Jae Hwan Kim,Seung-Kyun Kang,Chi Hwan Lee,Jungyup Lee,Jae Ho Shin,Nam Heon Kim,Cecilia Leal,Moonsub Shim,John A. Rogers
出处
期刊:Nano Letters
[American Chemical Society]
日期:2015-01-26
卷期号:15 (2): 969-973
被引量:298
摘要
Here we demonstrate materials and operating conditions that allow for high-resolution printing of layers of quantum dots (QDs) with precise control over thickness and submicron lateral resolution and capabilities for use as active layers of QD light-emitting diodes (LEDs). The shapes and thicknesses of the QD patterns exhibit systematic dependence on the dimensions of the printing nozzle and the ink composition in ways that allow nearly arbitrary, systematic control when exploited in a fully automated printing tool. Homogeneous arrays of patterns of QDs serve as the basis for corresponding arrays of QD LEDs that exhibit excellent performance. Sequential printing of different types of QDs in a multilayer stack or in an interdigitated geometry provides strategies for continuous tuning of the effective, overall emission wavelengths of the resulting QD LEDs. This strategy is useful to efficient, additive use of QDs for wide ranging types of electronic and optoelectronic devices.
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