Park Sang-Il, Xiong Yujie, Kim Rak-Hwan, Elvikis Paulius, Meitl Matthew, Kim Dae-Hyeong, Wu Jian, Yoon Jongseung, Yu Chang-Jae, Liu Zhuangjian, Huang Yonggang, Hwang Keh-chih, Ferreira Placid, Li Xiuling, Choquette Kent, Rogers John A
Department of Materials Science, Beckman Institute, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, 1304 West Green Street, Urbana, IL 61801, USA.
Science. 2009 Aug 21;325(5943):977-81. doi: 10.1126/science.1175690.
We have developed methods for creating microscale inorganic light-emitting diodes (LEDs) and for assembling and interconnecting them into unusual display and lighting systems. The LEDs use specialized epitaxial semiconductor layers that allow delineation and release of large collections of ultrathin devices. Diverse shapes are possible, with dimensions from micrometers to millimeters, in either flat or "wavy" configurations. Printing-based assembly methods can deposit these devices on substrates of glass, plastic, or rubber, in arbitrary spatial layouts and over areas that can be much larger than those of the growth wafer. The thin geometries of these LEDs enable them to be interconnected by conventional planar processing techniques. Displays, lighting elements, and related systems formed in this manner can offer interesting mechanical and optical properties.
我们已经开发出了制造微型无机发光二极管（LED）以及将它们组装并互连以形成独特显示和照明系统的方法。这些LED使用特殊的外延半导体层，能够划分并分离出大量超薄器件。其可以制成各种形状，尺寸从微米到毫米不等，有平面或“波浪形”结构。基于印刷的组装方法能够将这些器件以任意空间布局沉积在玻璃、塑料或橡胶基板上，沉积面积可比生长晶圆的面积大得多。这些LED的薄型结构使其能够通过传统的平面加工技术进行互连。以这种方式形成的显示器、照明元件及相关系统可呈现出有趣的机械和光学特性。
