New type structure of a-Si solar cell submodules fabricated by microscopic hole spacing technique
- Resource Type
- Conference
- Authors
- Ohnishi, M.; Shibuya, H.; Okuda, N.; Inoue, H.; Kishi, Y.; Kiyama, S.; Kawata, H.; Okamoto, S.; Tsuda, S.; Nakano, S.; Kuwano, Y.
- Source
- IEEE Conference on Photovoltaic Specialists Photovoltaic Specialists Conference, 1990., Conference Record of the Twenty First IEEE. :1394-1399 vol.2 1990
- Subject
- Photonics and Electrooptics
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Power, Energy and Industry Applications
Photovoltaic cells
Microscopy
Power lasers
Laser beams
Pattern analysis
Photovoltaic systems
Solar power generation
Equivalent circuits
Power generation
Optical materials
- Language
A laser patterning method is investigated as a fabrication technique for microscopic holes on a-Si solar cells. The optimum laser patterning conditions calculated from a three-dimensional thermal analysis were confirmed experimentally. It is shown that microscopic holes can be fabricated on an a-Si solar cell using this method without any significant damage to the photovoltaic performance around the holes. This technique was applied to two unique structures for a-Si solar cell submodules: a see-through integrated-type submodule, and a through-hole contact (THC) integrated-type submodule. The hole pattern of see-through submodules was optimized for the purpose of obtaining both high transmittance and light uniformity. The performance for THC submodules is estimated by numerical simulation based on a distributed equivalent circuit model. It is found that a 10% increase in the maximum output power can be expected using this structure.ETX