Multi-Bandgap Semiconductor Structures and Methods for Using Them
AssigneesArizona Board of Regents, a body corporate of the State of Arizona, acting for and on behalf of, Arizona State University
InventorsCun-Zheng Ning, Zhicheng Liu, Leijun Yin, Fan Fan, Hao Ning, Sunay Turdogan, Patricia L. Nichols
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Abstract
Described herein are multi-segmented nanowires, nanosheets and nanobelts, and devices and methods using them for the generation of multicolor and white light.
Claims27
A method of generating radiation, comprising directing energy as a pumping source at a semiconductor nanowire, nanobelt or nanosheet, the semiconductor nanowire, nanobelt or nanosheet being formed from a II-VI semiconductor material system, a III-V semiconductor material system, or a IV-VI semiconductor material system, the composition of the semiconductor nanowire, nanobelt or nanosheet varying along a dimension thereof, the energy being directed at a first position of the semiconductor nanowire, nanobelt or nanosheet, the energy being adapted to pump the semiconductor material of the nanowire, nanobelt or nanosheet at the first position thereof.
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A light emitting device comprising a semiconductor nanowire, nanobelt or nanosheet, the semiconductor nanowire, nanobelt or nanosheet being formed from a II-VI semiconductor material system, a III-V semiconductor material system, or a IV-VI semiconductor material system, the composition of the semiconductor nanowire, nanobelt or nanosheet varying along a dimension thereof.
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A semiconductor nanowire or nanobelt formed from a II-VI semiconductor material system, a III-V semiconductor material system, or a IV-VI semiconductor material system, the composition of the semiconductor nanowire, nanobelt or nanosheet varying along a dimension thereof, wherein the bandgap emission wavelength of the semiconductor material at the first position is longer than the bandgap emission wavelength of the semiconductor material at the second position, and wherein the second position is disposed in a loop.
Dependencies are inferred from the claim text.