Brushing-Assisted Two-Color Quantum-Dot Micro-LED Array Towards Bi-Directional Optogenetics

被引：3

作者：

Mao, Dacheng ^{[1
]}

Xiong, Zheshun ^{[1
]}

Donnelly, Matthew ^{[1
]}

Xu, Guangyu ^{[1
]}

机构：

[1] Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA 01003 USA

来源：

IEEE ELECTRON DEVICE LETTERS | 2021年 / 42卷 / 10期

基金：

美国国家科学基金会;

关键词：

Multi-color micro-LED array; bi-directional optogenetics; micropatterning of quantum dots; FULL-COLOR; DISPLAY;

D O I：

10.1109/LED.2021.3108554

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Bi-directional optogenetics at single-cell level requires localized, bright, and multi-color light sources to activate both excitatory and inhibitory opsins. To this end, here we report a simple fabrication method of high-density, two-color, quantum dot (QD) based micron-sized light emitting diode (micro-LED) arrays. In particular, we micro-patterned InP/ZnS QDs on top of GaN-based micro-LED pixels via a simple brushing method, and coated them with a spectral filter. The resulting array featured sub-20 mu m sized light spots near both 462 nm and 623 nm, with their optical power density being ca. 0.1 - 1.0 mW/mm(2). Combined with its low crosstalk and fast response, our two-color QD-LED array may hold promise for bi-directional optogenetics ultimately at the cellular level.

引用

页码：1504 / 1507

页数：4

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