Composite substrate structure

• Main Author: ZHAO ZHONGYANG
• Format: Patent
• Language: Chinese; English
• Published: 11.09.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The utility model provides a composite substrate structure, is through setting up graphite alkene layer on the gaAs epitaxial layer, and through adopting this composite substrate preparation photoelectric detector component or photovoltaic cell component, usable graphite alkene constitutes the schottky junction with the gaAs semiconductor, and the light absorbing zone is gaAs layer depletion layerof a semiconductor to utilize good light transmission rate of graphite alkene and electrical conduction efficiency. Thereby can improve the adoption photoelectric material that this composite substrate prepared and the photoelectric conversion efficiency of photovoltaic cell structure. 种复合衬底结构，通过在GaAs外延层上设置石墨烯层，通过采用该复合衬底制作光电探测器元件或光伏电池元件，可利用石墨烯与GaAs半导体构成肖特基结，光吸收层为GaAs层半导体的耗尽层，并利用石墨烯良好的光透过率和导电效率。从而可以提高采用该复合衬底所制备的光电材料以及光伏电池结构的光电转换效率。