Effect of temperature on electronic and electrical behavior of InGaN double hetero-junction p-i-n solar cells

Abstract Graphene flakes were made from electrochemical exfoliation. To study graphene planes, different volumes of graphene solutions (1, 2, 4, and 7 ml) were sprayed on glass lamellae to get different graphene planes. I–V curve of all samples shows ohmic behavior with resistance in the order of kΩ which increases the slope of the I–V curve with increasing graphene planes (spray volume). The effect of temperature on all samples shows a clear jump in I–T curves. It is found that up to 150 °C current is almost constant, but after that current increases highly in the range of 1.8–10 times and resistance reduces sharply. Also, samples with lower graphene planes affected highly with temperature effect.

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EFFECT OF TEMPERATURE, HUMIDITY AND IRRADIANCE ON SOLAR POWER GENERATION

Journal of Engineering Studies and Research ◽

10.29081/jesr.v26i4.243 ◽

2021 ◽

Vol 26 (4) ◽

pp. 113-119

Author(s):

FRANK ONAIFO ◽

AKPOFURE ALEXANDER OKANDEJI ◽

OLAMIDE AJETUNMOBI ◽

DAVID BALOGUN

Keyword(s):

Power Generation ◽

Solar Cells ◽

Solar Cell ◽

Solar Radiation ◽

Solar Irradiance ◽

Solar Power ◽

Corrosion Process ◽

Effect Of Temperature ◽

Photovoltaic Solar Cell ◽

Solar Power Generation

This paper studies the effect of temperature, humidity and irradiance on the power generated by a photovoltaic solar cell. This was achieved using pyranometer for determining the solar radiation, wet and dry thermometer for measuring humidity, and digital multimeter for voltage and current measurement. The result of the study show that power generation increases with increase of solar irradiance. Additionally, changes of humidity level and temperature do not significantly affect solar power generation. Furthermore, it was also observed that high temperatures and higher humidity levels accelerate the corrosion process on the solar cells which reduces the efficiency of the cells.

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Effect of temperature on organic Schottky barrier cells

Canadian Journal of Physics ◽

10.1139/p81-094 ◽

1981 ◽

Vol 59 (6) ◽

pp. 727-732 ◽

Cited By ~ 6

Author(s):

Rafik O. Loutfy ◽

Cheng-Kuo Hsiao

Keyword(s):

Solar Cells ◽

Power Conversion Efficiency ◽

Schottky Barrier ◽

Conversion Efficiency ◽

Organic Solar Cells ◽

Short Circuit ◽

Power Conversion ◽

Open Circuit ◽

Effect Of Temperature ◽

Photovoltaic Properties

The effect of temperature on the photovoltaic properties of indium/metal-free phthalocyanine Schottky barrier solar cells was investigated in the range 260–350 K. In general, the short circuit photocurrent, Jsc, and fill factor, ff, increased with increasing temperature (in contrast to inorganic photocells). The device series resistance and open circuit photovoltage, Voc, decreased (similar to inorganic photocells) as temperature was raised. An increase in the overall power conversion efficiency, η, has been observed with increase of temperature. In the case of x-H2Pc, the power conversion efficiency increased by 2.5 times due to a temperature rise of 60 °C above ambient. Thus, for operation at temperatures above ambient, organic solar cells may offer a significant advantage over inorganic cells.Analysis of the variation of the photovoltage with temperature showed that the decrease in Voc is mainly due to variation injunction impedance, which is controlled by thermionic current at high temperature and ionized impurity at low temperature.

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