Kalita Golap, Adhikari Sudip, Aryal Hare Ram, Wakita Koichi, Umeno Masayoshi
Department of Electrical and Electronics Engineering, Chubu University, 1200 Matsumoto-cho, Kasugai-shi, 487-8501, Japan.
J Nanosci Nanotechnol. 2010 Jun;10(6):3844-8. doi: 10.1166/jnn.2010.1974.
Here, we report incorporation of multiwalled carbon nanotubes (MWNTs) in Poly(3-octylthiophene)/fullerene heterojunction solar cells. Multi-walled carbon nanotubes (MWNTs) were functionalized by oxygen plasma treatment. Photoelectron spectroscopy study of oxygen plasma treated MWNTs shows surface modification with hydroxyl and carboxyl groups. Plasma treated MWNTs were combined with Poly(3-octylthiophene) and solar cell was fabricated with the structure Au/P3OT + MWNTs/C60/FTO. Fabricated device shows short circuit current density (Jsc) open circuit voltage (Voc), fill factor and conversion efficacy as 0.04 mA/cm2, 0.355 V, 21% and 0.003%. Solar cell fabricated with incorporation of MWNTs shows much better device performance, then that of the device without MWNTs. MWNTs in the polymer composite act as exciton dissociation site and provide efficient hole transportation, and thereby improving device performance.
在此，我们报告了在聚（3-辛基噻吩）/富勒烯异质结太阳能电池中引入多壁碳纳米管（MWNTs）的情况。多壁碳纳米管（MWNTs）通过氧等离子体处理进行功能化。对经氧等离子体处理的MWNTs的光电子能谱研究表明，其表面被羟基和羧基修饰。经等离子体处理的MWNTs与聚（3-辛基噻吩）相结合，并制备了结构为Au/P3OT + MWNTs/C60/FTO的太阳能电池。所制备的器件的短路电流密度（Jsc）、开路电压（Voc）、填充因子和转换效率分别为0.04 mA/cm²、0.355 V、21%和0.003%。引入MWNTs制备的太阳能电池显示出比未引入MWNTs的器件更好的性能。聚合物复合材料中的MWNTs充当激子解离位点并提供有效的空穴传输，从而提高器件性能。
