Department of Physics, Kyonggi University, Suwon, Republic of Korea.
Nanotechnology. 2010 Jun 25;21(25):255201. doi: 10.1088/0957-4484/21/25/255201. Epub 2010 Jun 2.
Tunable-white-light-emitting materials are developed by combining two single-crystal oxide nanowire materials-ZnO and SnO(2)-having different light emissions. The tuning of white-light emission from cool white to warm white is achieved for the first time by adjusting the growth sequence and growth time of the ZnO and SnO(2) nanowires. Combined ZnO:SnO(2) nanowire arrays yield a desired emission color from (0.30, 0.31) to (0.35, 0.37) and a white luminescence of approximately 100 cd m(-2), whose reproducibility can be controlled accurately. These results pave a new way to understand and generate a desired white-light emission, which is a key technology in large-area planar display devices, including flexible and/or transparent display devices.
可调谐白光发光材料是通过将两种具有不同发光特性的单晶氧化物纳米线材料——氧化锌（ZnO）和氧化锡（SnO2）——组合而成的。通过调整 ZnO 和 SnO2 纳米线的生长顺序和生长时间，首次实现了从冷白光到暖白光的可调谐白光发射。组合的 ZnO:SnO2 纳米线阵列产生了从（0.30，0.31）到（0.35，0.37）的期望发射颜色和大约 100 cd m(-2)的白色发光，其重现性可以被精确控制。这些结果为理解和产生期望的白光发射铺平了道路，这是大面积平面显示器件（包括柔性和/或透明显示器件）的关键技术。
