RT Journal Article
T1 Nongeminate Recombination Dynamics–Device Voltage Relationship in Hybrid PbS Quantum Dot/C60 Solar Cell
A1 Marín-Beloqui, José Manuel
K1 Células solares
K1 Puntos cuánticos
AB Here we employ transient optoelectronic techniques to study the chargepresent in the device and the nongeminate recombination rate in hybrid PbS/C60 planarheterojunction solar cells under working conditions. We find that in low light intensityconditions there are very few charges present in the solar cell and that the chargeincreases linearly with voltage, suggesting that most of the charge resides at theelectrodes (capacitive charges). At higher applied light bias, the charges stored in thedevice increase exponentially. The carrier lifetime is very short (τ < 1 us at 1 sun; 1 sun =100 mW/cm2 of sun-simulated light) when compared to organic solar cells. Bycorrelating the charge carrier lifetime with the device charge density, we successfullyreconstruct the photocurrent− voltage (J−V) curve at 1 sun, demonstrating that fastnongeminate recombination losses limit the efficiency in these quantum dot-baseddevices.
PB American Chemical Society
YR 2013
FD 2013-08-05
LK https://hdl.handle.net/10630/37588
UL https://hdl.handle.net/10630/37588
LA eng
NO Ryan, J. W., Marin-Beloqui, J. M., Albero, J., & Palomares, E. (2013). Nongeminate Recombination Dynamics–Device Voltage Relationship in Hybrid PbS Quantum Dot/C 60 Solar Cells. Journal of Physical Chemistry. C, 117(34), 17470–17476. https://doi.org/10.1021/jp4059824
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026