Basic studies toward fabrication of the cellulosic bulk hetero-junction solar cells

合成了新型的用于体异质结太阳能电池的具有p型或n型双功能基团的纤维素和纤维素衍生物（CNF）。测试了由这些纤维素和CNF衍生物制备的光电流产生器件。作为结果，由CNF衍生物与酞菁锌和聚-3-烷基噻吩构建的器件分别显示出0.001%和0.25%的能量转换效率（PCE）。因此，我们发现通过CNF支架上的p-或n-型疏水官能团的结构优化，有很高的可能性大幅改善PCE。

Novel cellulose and cellulose nanofiber (CNF) derivatives with p- or n-type semiconductive functional groups used for the bulk-heterojunction solar cells were newly prepared. The photocurrent generation devices prepared from these cellulose and CNF derivatives were tested. As the results, the devices constructed from the CNF derivatives with Zinc phthalocyanine and poly-3-alkylthiophene showed 0.001% and 0.25% of the energy conversion efficiencies (PCEs), respectively. Thus, we found that there are high possibility drastically improving the PCE by the structural optimization of the p- or n-type semiconductive functional groups on the CNF scaffold.