TY - JOUR
T1 - Electrothermal measurements
T2 - A calorimetric method to examine power dissipation in photovoltaic devices
AU - Büchner, Bettine
AU - Flaisher, Harvey
AU - Wolf, Martin
AU - Cahen, David
PY - 1990
Y1 - 1990
N2 - Power loss mechanisms in illuminated and nonilluminated photovoltaic cells are investigated by an ac calorimetric method. In this electrothermal (ET) method, periodic temperature changes, caused by periodic electrical excitation, are sensed as a function of external parameters, e.g., applied voltage. ET signals on crystalline silicon and thin-film CuInSe2/CdS solar cells are measured as a function of applied voltage. The results are compared to those obtained from an energy balance model. Inherent to the model is the occurrence of injected carrier cooling. The ability of ET measurements to separate different power loss mechanisms is discussed and compared to that of conventional photothermal ones (e.g., photoacoustic).
AB - Power loss mechanisms in illuminated and nonilluminated photovoltaic cells are investigated by an ac calorimetric method. In this electrothermal (ET) method, periodic temperature changes, caused by periodic electrical excitation, are sensed as a function of external parameters, e.g., applied voltage. ET signals on crystalline silicon and thin-film CuInSe2/CdS solar cells are measured as a function of applied voltage. The results are compared to those obtained from an energy balance model. Inherent to the model is the occurrence of injected carrier cooling. The ability of ET measurements to separate different power loss mechanisms is discussed and compared to that of conventional photothermal ones (e.g., photoacoustic).
UR - http://www.scopus.com/inward/record.url?scp=33646254548&partnerID=8YFLogxK
U2 - 10.1063/1.344951
DO - 10.1063/1.344951
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AN - SCOPUS:33646254548
SN - 0021-8979
VL - 67
SP - 4338
EP - 4344
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 9
ER -
