带隙跨越整个可见光谱的四元合金半导体纳米带。
Quaternary alloy semiconductor nanobelts with bandgap spanning the entire visible spectrum.
作者信息
Pan Anlian, Liu Ruibin, Sun Minghua, Ning Cun-Zheng
机构信息
Department of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287, USA.
出版信息
J Am Chem Soc. 2009 Jul 15;131(27):9502-3. doi: 10.1021/ja904137m.
We used an improved cothermal evaporation route for the first time to achieve quaternary semiconductor nanostructured alloys, using an example of Zn(x)Cd(1-x)S(y)Se(1-y) nanobelts. The PL (bandgap) of these as-grown nanostructured alloys can be continuously tunable across the entire visible spectrum through experimentally controlling their compositions. Such widely controlled alloy nanostructures via composition/light emission provide a new material platform for applications in wavelength-tunable lasers, multicolor detectors, full-spectrum solar cells, LEDs, and color displays.
我们首次采用改进的共热蒸发路线来制备四元半导体纳米结构合金，以Zn(x)Cd(1-x)S(y)Se(1-y)纳米带为例。通过实验控制这些生长态纳米结构合金的组成，其光致发光（带隙）可在整个可见光谱范围内连续可调。这种通过组成/发光实现的广泛可控合金纳米结构为波长可调谐激光器、多色探测器、全光谱太阳能电池、发光二极管和彩色显示器等应用提供了一个新的材料平台。
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