One-dimensional photonic crystal selective radiator

A dimensional photonic crystal and selective technology, applied in semiconductor devices, optics, instruments, etc., can solve the problems of poor selective radiation effect, limit the photoelectric conversion efficiency of TPV and STPV systems, and achieve mature preparation methods, simple structure, The effect of low production cost
CN104076530AInactive Publication Date: 2014-10-01SHAOXING UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHAOXING UNIVERSITY
Publication Date
2014-10-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a one-dimensional photonic crystal selective radiator which comprises a base body material and two types of dielectric materials including multiple periods of erbium-doped silicon dioxide films and silicon films alternatively deposited on the base body material. The base body material is silicon. The first-layer films deposited on the base body material are erbium-doped silicon dioxide films. The one-dimensional photonic crystal selective radiator integrates characteristic radiation of rare earth ions and a spectrum control feature of a photonic crystal to obtain selective radiation characteristic with excellent performance, remarkably improves the photovoltaic conversion efficiency of TPV and STPV systems and further has the advantages of being simple in structure, mature in preparation method and the like.
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Description

technical field

[0001] The invention relates to the field of photovoltaic technology, and in particular to a one-dimensional photonic crystal selective radiator. Background technique

[0002] With the continuous development of the economy, non-renewable energy sources such as coal and oil are frequently running out, and energy issues have increasingly become a bottleneck restricting social and economic development. Therefore, energy-saving and new energy technologies have attracted great attention both at home and abroad.

[0003] Thermo-photovoltaic (TPV) system is a technology that directly converts radiant energy into electrical energy. Its basic principle is that thermal radiant energy is projected onto the surface of the radiator and heated, and the infrared light radiated by the high-temperature radiator is projected onto the surface of the photovoltaic cell, and the photovoltaic cell will The received infrared light is converted into electrical energy. The TPV system...

Claims

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