TY  - JOUR
ID  - SisLab1800
UR  - http://dx.doi.org/10.1155/2015/463565
A1  - Tran, Thi Thao
A1  - Tran, Quang Trung
A1  - Vo, Van Truong
A1  - Nguyen, Nang Dinh
Y1  - 2015///
N2  - With the aim to find out an enhanced operating-temperature range for photovoltaic device parameters, two types of the photoactive layer were prepared: poly(3-hexylthiophene) (P3HT) and P3HT+nc-TiO2 (PTC) thin films. The enhancement obtained for the photoelectrical conversion efficiency of the composite based OSCs is attributed to the presence of nanoheterojunctions of TiO2/P3HT. For the temperature range of 30?70°C, the decrease of the open-circuit potential was compensated by an increase of the fill factor; and the increase in the short-circuit current resulted in an overall increase of the energy conversion efficiency. At elevated temperatures of 60?80°C the efficiency of the P3HT- and PTC-based cells reached a maximum value of 1.6% and 2.1%, respectively. Over this temperature range the efficiency of P3HT-based OSC decreased strongly to zero, whereas for the PTC cells it maintained a value as large as 1.2% at the temperature range of 110?140°C. The improved thermal stability of the composite-based device was attributed to the lowered thermal expansion coefficient of the nanocomposite photoactive layer.
JF  - Journal of Nanomaterials
SN  - 1687-4129
TI  - Enhancement of Power Efficiency and Stability of P3HT-based Organic Solar Cells under Elevated Operating-Temperatures by using a Nanocomposite Photoactive Layer
AV  - none
ER  -