Concentrating solar power photovoltaic conversion device or photothermal conversion device
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 王广武
- Publication Date
- 2013-09-11
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technology field;
[0001] The invention relates to a concentrated solar photoelectric conversion device or a photothermal conversion device. Background technique:
[0002] Solar direct pumping laser is a promising way to utilize solar energy. It uses solar radiant energy as a pumping source to convert broadband, incoherent sunlight into narrow-band, coherent laser light.
[0003] Quantum dots, also known as nanocrystals, are nanoparticles composed of II-VI or III-V elements. The particle size of quantum dots is generally between 1 and 10 nm. Since electrons and holes are quantum-confined, the continuous energy band structure becomes a discrete energy level structure with molecular characteristics, and can emit fluorescence after being excited.
[0004] Quantum dots have a wide excitation spectrum and a narrow emission spectrum. The emission spectrum of quantum dots can be controlled by changing the size of quantum dots. By changing the size and chemical composition of quantu...