Abstract

Sb-based alloys offer great potential for photovoltaic and thermophotovoltaic applications. In this paper, we study the performance of AlxGa1-xSb (x = 0, 0.15, and 0.50) single-junction solar cells over a temperature range of 25–250 °C. The dark current-voltage, one-sun current-voltage, and external quantum efficiency measurements were acquired at different temperatures. Correlations between experimental and numerical results are made to draw conclusions about the thermal behavior of the cells. It is shown that, while the bandgaps decrease linearly with temperature leading to the reduction of open-circuit voltages, the short-circuit current densities decrease with non-linear trends. The temperature-dependent dark current densities were extracted by fitting the dark current-voltage curves to single- and double-diode models to give an insight into the effect of intrinsic carrier concentration (ni) on the cell performance. We find that the ni has a significant impact on temperature-dependent cell performance. These findings could lay a groundwork for the future Sb-based photovoltaic systems that operate at high temperatures.

Original languageEnglish (US)
JournalCurrent Applied Physics
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Solar cells
solar cells
temperature dependence
dark current
Dark currents
electric potential
Temperature
cells
temperature
current density
Electric potential
Current density
short circuit currents
open circuit voltage
Open circuit voltage
quantum efficiency
Quantum efficiency
sun
Short circuit currents
Sun

Keywords

  • Gallium antimonide
  • Photovoltaic-thermal system (PV-T)
  • Single-junction solar cell
  • Temperature dependence
  • Thermophotovoltaic system (TPV)

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Vadiee, E., Fang, Y., Zhang, C., Fischer, A. M., Williams, J. J., Renteria, E. J., ... Honsberg, C. (Accepted/In press). Temperature dependence of GaSb and AlGaSb solar cells. Current Applied Physics. https://doi.org/10.1016/j.cap.2018.03.007

Temperature dependence of GaSb and AlGaSb solar cells. / Vadiee, Ehsan; Fang, Yi; Zhang, Chaomin; Fischer, Alec M.; Williams, Joshua J.; Renteria, Emma J.; Balakrishnan, Ganesh; Honsberg, Christiana.

In: Current Applied Physics, 01.01.2018.

Research output: Contribution to journalArticle

Vadiee, E, Fang, Y, Zhang, C, Fischer, AM, Williams, JJ, Renteria, EJ, Balakrishnan, G & Honsberg, C 2018, 'Temperature dependence of GaSb and AlGaSb solar cells', Current Applied Physics. https://doi.org/10.1016/j.cap.2018.03.007
Vadiee E, Fang Y, Zhang C, Fischer AM, Williams JJ, Renteria EJ et al. Temperature dependence of GaSb and AlGaSb solar cells. Current Applied Physics. 2018 Jan 1. https://doi.org/10.1016/j.cap.2018.03.007
Vadiee, Ehsan ; Fang, Yi ; Zhang, Chaomin ; Fischer, Alec M. ; Williams, Joshua J. ; Renteria, Emma J. ; Balakrishnan, Ganesh ; Honsberg, Christiana. / Temperature dependence of GaSb and AlGaSb solar cells. In: Current Applied Physics. 2018.
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