Six knot solar cell of lattice match

• Main Authors: WANG LEI, YANG CUIBAI, ZHANG XIAOBIN, LIU XUEZHEN, MA DIFEI, ZHANG YANG, LIU JIANQING
• Format: Patent
• Language: Chinese; English
• Published: 13.07.2016
• Subjects: BASIC ELECTRIC ELEMENTS; 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 discloses a six knot solar cell of lattice match, this battery uses p type ge single -chip as the substrate, the gaInAsGaInP buffer layer has set gradually on the ge substrate, alGaAsGaInAs DBR, the sub - battery of ga1 -3xIn3xNxAs1 -x, alAsAlGaAs DBR, the sub - battery of ga1 -3yIn3yNyAs1 -y, the sub - battery of gaInAs, sub - battery of alGaInAs and the sub - battery of alGaInP, wherein alGaAsGaInAs DBR is used for reflecting long wave photon, alAsAlGaAs DBR is used for reflecting the medium -long wave photon. The utility model discloses can make photon quilt battery second absorption utilize, improve sub - battery collection efficiency to improve the holistic photoelectric conversion efficiency of six knot solar cell, and simultaneously, the utility model discloses sub - battery thickness can also be reduced, battery manufacturing cost is reduced. 本实用新型公开了种晶格匹配的六结太阳能电池，该电池以p型Ge单晶片为衬底，在Ge衬底上依次设置有GaInAs/GaInP缓冲层、AlGaAs/GaInAs DBR、GaInNAs子电池、AlAs/AlGaAs DBR、GaInNAs子电池、GaInAs子电池、AlGaInAs子电池和A