| Presentation | 1999/7/16 Improving GaAs photovoltaic module conversion efficiency by thermal release in optical-powering systems Takako Yasui, Junichi Ohwaki, Masato Mino, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Optical-powering systems can supply power to equipment that requires electrical isolation. Measuring changes in a GaAs photovoltaic (PV) cell during continuous optical irradiation from a laser diode, we found that the cell temperature increased by 37.5℃ and the conversion efficiency decreased from 49.4% to 47% under 860-mW irradiation. We stabilized the conversion efficiency at 49.2% by installing a Cu heatsink (volume: 9cm^3) behind the PV cell. We should be able to provide approximately 420-mW of stable electrical power to equipment 200m away with a total system efficiency of approximately 9.1% by using this approach. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | photovoltaic cell / optical fiber / power / temperature / optical/electrical conversion efficiency |
| Paper # | EE99-20 |
| Date of Issue |
| Conference Information | |
| Committee | EE |
|---|---|
| Conference Date | 1999/7/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Energy Engineering in Electronics and Communications (EE) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improving GaAs photovoltaic module conversion efficiency by thermal release in optical-powering systems |
| Sub Title (in English) | |
| Keyword(1) | photovoltaic cell |
| Keyword(2) | optical fiber |
| Keyword(3) | power |
| Keyword(4) | temperature |
| Keyword(5) | optical/electrical conversion efficiency |
| 1st Author's Name | Takako Yasui |
| 1st Author's Affiliation | NTT Telecommunications Energy Laboratories() |
| 2nd Author's Name | Junichi Ohwaki |
| 2nd Author's Affiliation | NTT Telecommunications Energy Laboratories |
| 3rd Author's Name | Masato Mino |
| 3rd Author's Affiliation | NTT Telecommunications Energy Laboratories |
| Date | 1999/7/16 |
| Paper # | EE99-20 |
| Volume (vol) | vol.99 |
| Number (no) | 176 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |