Thermal Characteristics of High-Efficiency Photovoltaic Converters of High-Power Laser Light

Journal Article · Thu Nov 15 00:00:00 EST 2018 · Technical Physics Letters

DOI:https://doi.org/10.1134/S1063785018110032· OSTI ID:22927930

Andreev, V. M. ^[1]; Davidyuk, N. Yu. ^[2]; Malevskii, D. A.; Pokrovskii, P. V.; Sadchikov, N. A.; Andreeva, A. V. ^[1]

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1. Russian Academy of Sciences, Ioffe Institute (Russian Federation)
2. Russian Academy of Sciences, St. Petersburg National Research Academic University (Russian Federation)

The influence exerted by the heat removal conditions on the extent of overheating of photovoltaic converters of high-power (>10{sup 3} W/cm{sup 2}) laser light has been studied. The temperature of the p–n junction of photovoltaic cells was measured by recording the instantaneous values of the open-circuit voltage generated by laser light. The effect of cooling in high-efficiency photovoltaic cells (efficiency = 55%) via removal of a substantial part of absorbed optical power by the photocurrent into the external load was demonstrated. It was shown that, at laser radiation power of 2.5 W, the overheating of a photocell with an area of 1.7 × 10{sup –3} cm{sup 2} relative to the copper heatsink temperature is 48°C in the no-load conditions and 30°C in operation with the optimal load.

• OSTI ID: 22927930
• Journal Information: Technical Physics Letters, Vol. 44, Issue 11; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7850
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
COOLING
COPPER
ELECTRIC POTENTIAL
ENERGY EFFICIENCY
HEAT SINKS
LASER RADIATION
PHOTOCURRENTS
PHOTOVOLTAIC EFFECT
P-N JUNCTIONS
SOLAR CELLS