학술논문

III-V solar cells transferred to flexible substrates based on Cu
Document Type
Conference
Source
2022 36th Symposium on Microelectronics Technology (SBMICRO) Microelectronics Technology (SBMICRO), 2022 36th Symposium on. :1-4 Aug, 2022
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Costs
Photovoltaic cells
Contacts
Production
Epitaxial growth
Microelectronics
Copper
solar cells
flexible substrate
III-V semiconductors
Language
Abstract
High efficiency solar cells are produced on expensive rigid substrates, but indispensable as a crystallographic base and mechanical support in the production of the monocrystalline active layer. However, after obtaining the solar cell, the original substrate is completely unnecessary, as it does not exert any functionality in the cell. In this way, there is a growing interest in technologies that allow the commercialization of solar cells on light, flexible and low-cost substrates, expanding not only the range of applicability, but also reducing production, transport and installation costs. This communication describes the development of a general methodology for the transfer process of complete solar cell structures of III-V materials, epitaxially grown by Metal Organic Vapor Phase Epitaxy, to flexible copper substrate obtained by electrodeposition and to copper adhesive tape. The transfers were successfully carried out, without damaging the structure and electrical contacts of the cells. Moreover, the figures of merit of the solar cells showed only slight changes following the transfer procedure to the flexible substrates.