%0 Journal Article %1 Huang2009888 %A Huang, Yu-Ching %A Liao, Yu-Chia %A Li, Shao-Sian %A Wu, Ming-Chung %A Chen, Chun-Wei %A Su, Wei-Fang %D 2009 %J Solar Energy Materials and Solar Cells %K annealing effect performance process study %N 6–7 %P 888 - 892 %R 10.1016/j.solmat.2008.10.027 %T Study of the effect of annealing process on the performance of P3HT/PCBM photovoltaic devices using scanning-probe microscopy %U http://www.sciencedirect.com/science/article/pii/S0927024808003632 %V 93 %X We have studied the effect of annealing process on the performance of photovoltaic devices based on the bulk heterojunction of poly(3-hexylthiophene) and 6,6-phenyl-C61 butyric acid methyl ester (P3HT/PCBM). By means of atomic force microscopy (AFM) and scanning of near-field microscopy (SNOM), we can observe the morphology evolution of the annealed P3HT/PCBM composite films. We also studied the changes of optical properties by absorption spectroscopy and the changes of composition distribution of annealed composite films. The results indicate the \P3HT\ in the composite film gradually becomes an ordered structure with annealing. The ordered \P3HT\ facilitates the charge transport. However, the film exhibits a large-scale (1 μm) \PCBM\ aggregation after annealing for an extended period of time. The disrupted bi-continous phase retards the charge transport. Thus, the device efficiency reaches the highest (2.308%) after annealing at 140 °C for 30 min but decreases to 0.810% after 60 min annealing.

@article{Huang2009888, abstract = {We have studied the effect of annealing process on the performance of photovoltaic devices based on the bulk heterojunction of poly(3-hexylthiophene) and [6,6]-phenyl-C61 butyric acid methyl ester (P3HT/PCBM). By means of atomic force microscopy (AFM) and scanning of near-field microscopy (SNOM), we can observe the morphology evolution of the annealed P3HT/PCBM composite films. We also studied the changes of optical properties by absorption spectroscopy and the changes of composition distribution of annealed composite films. The results indicate the \{P3HT\} in the composite film gradually becomes an ordered structure with annealing. The ordered \{P3HT\} facilitates the charge transport. However, the film exhibits a large-scale (1 μm) \{PCBM\} aggregation after annealing for an extended period of time. The disrupted bi-continous phase retards the charge transport. Thus, the device efficiency reaches the highest (2.308%) after annealing at 140 °C for 30 min but decreases to 0.810% after 60 min annealing. }, added-at = {2013-08-06T09:11:30.000+0200}, author = {Huang, Yu-Ching and Liao, Yu-Chia and Li, Shao-Sian and Wu, Ming-Chung and Chen, Chun-Wei and Su, Wei-Fang}, biburl = {https://www.bibsonomy.org/bibtex/2e05bcb1784f9b974eedb548c63e868f9/broutley}, description = {Study of the effect of annealing process on the performance of P3HT/PCBM photovoltaic devices using scanning-probe microscopy}, doi = {10.1016/j.solmat.2008.10.027}, interhash = {96a612b96a74cb4b09418acda1006549}, intrahash = {e05bcb1784f9b974eedb548c63e868f9}, issn = {0927-0248}, journal = {Solar Energy Materials and Solar Cells }, keywords = {annealing effect performance process study}, note = {17th International Photovoltaic Science and Engineering Conference }, number = {6–7}, pages = {888 - 892}, timestamp = {2013-08-06T09:11:30.000+0200}, title = {Study of the effect of annealing process on the performance of P3HT/PCBM photovoltaic devices using scanning-probe microscopy }, url = {http://www.sciencedirect.com/science/article/pii/S0927024808003632}, volume = 93, year = 2009 }