TY - GEN
T1 - A highly efficient hybrid CdS-GaAs solar cell
AU - Chen, H. C.
AU - Lin, Chien-Chung
AU - Tsai, Y. L.
AU - Han, H. V.
AU - Yu, Pei-Chen
AU - Kuo, Hao-Chung
PY - 2012/11/26
Y1 - 2012/11/26
N2 - A novel design of hybrid solar cell combining traditional GaAs-based solar cell with colloidal CdS quantum dots (QDs) is demonstrated. By applying CdS QDs on the surface of GaAs device, we can obtain an effective anti-reflection coating at long wavelength. Moreover, due to its strong absorption at ultraviolet range and efficient light emission at blue photon, CdS quantum dots can down-convert the high-energy UV photons into visible ones, which are more easily to be collected in GaAs solar cell. The short circuit current and power conversion efficiency of this new device increases by 21% and 18.9%, respectively, when we compare them to the uncoated GaAs solar cell. An increase of the surface photoconductivity was also detected due to UV presence, and the fill factor of the CdS QDs solar cell can be improved accordingly.
AB - A novel design of hybrid solar cell combining traditional GaAs-based solar cell with colloidal CdS quantum dots (QDs) is demonstrated. By applying CdS QDs on the surface of GaAs device, we can obtain an effective anti-reflection coating at long wavelength. Moreover, due to its strong absorption at ultraviolet range and efficient light emission at blue photon, CdS quantum dots can down-convert the high-energy UV photons into visible ones, which are more easily to be collected in GaAs solar cell. The short circuit current and power conversion efficiency of this new device increases by 21% and 18.9%, respectively, when we compare them to the uncoated GaAs solar cell. An increase of the surface photoconductivity was also detected due to UV presence, and the fill factor of the CdS QDs solar cell can be improved accordingly.
UR - http://www.scopus.com/inward/record.url?scp=84869471432&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2012.6318230
DO - 10.1109/PVSC.2012.6318230
M3 - Conference contribution
AN - SCOPUS:84869471432
SN - 9781467300643
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 3073
EP - 3075
BT - Program - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012
Y2 - 3 June 2012 through 8 June 2012
ER -