Temperature dependence of photovoltaic cells, modules and systems

Amorphous Silicon–Based Solar Cells

“…It is noteworthy that there was no permanent degradation of this module over the three-year extent of the test. The conclusion that amorphous silicon modules reach a steady state after about 1000 h of steady illumination was also reached in a much larger study of modules manufactured by Advanced Photovoltaics Systems, Inc. [17].This positive trend of efficiency with temperature is atypical of solar cells made with other materials; for example, the temperature coefficient of crystal silicon solar cells is about −4 × 10 −3 /K [19,20]. Interestingly, if the temperature dependence of a-Si:H solar cells is measured quickly -so that there is no time for the Staebler-Wronski effect to set in -the temperature coefficient is also negative (about −1 × 10 −3 /K) [19].…”

“…This positive trend of efficiency with temperature is atypical of solar cells made with other materials; for example, the temperature coefficient of crystal silicon solar cells is about −4 × 10 −3 /K [19,20]. Interestingly, if the temperature dependence of a-Si:H solar cells is measured quickly -so that there is no time for the Staebler-Wronski effect to set in -the temperature coefficient is also negative (about −1 × 10 −3 /K) [19].…”

“…Interestingly, if the temperature dependence of a-Si:H solar cells is measured quickly -so that there is no time for the Staebler-Wronski effect to set in -the temperature coefficient is also negative (about −1 × 10 −3 /K) [19]. The behavior of a module in the field may be understood as a competition of the slow annealing of the Staebler-Wronski effect (which yields the positive temperature coefficient) and of a smaller, intrinsic negative coefficient [21,22].…”

Development of concentrator modules with dome-shaped Fresnel lenses and triple-junction concentrator cells

“…18 The result can be summarized by the equation listed in the Figure 8 as a function of the short-circuit current density for that instance. 15,[18][19][20][21] The relative value of the coefficient logarithmically drops with the increase of the current density. Now, the cell temperature of the concentrator cell is not always the module temperature measured by a thermocouple mounted on the module body.…”

Temperature dependence measurements and performance analyses of high-efficiency interdigitated back-contact, passivated emitter and rear cell, and silicon heterojunction photovoltaic modules

“…Therefore, evaluating the temperature dependence of PV modules is essential to understand their outdoor performance and accurately estimate the energy yield in PVPSs and rooftop systems. [1][2][3][4][5][6] Because the power of PV modules is known to decrease with an increase in temperature, the cooling system of PV modules has been studied. [7][8][9][10][11][12][13] Certain manufacturers have reported the temperature coefficient (TC) values for the maximum power (P max ) of some commercially available PV modules.…”