摘要
分别从黑枸杞和菠菜叶中提取出花青素和叶绿素,并利用花青素、叶绿素及两者共敏化的染料作为敏化剂组装高原天然染料敏化太阳能电池.通过紫外-可见吸收光谱(UV-Vis)对天然染料进行光谱性能测试.循环伏安曲线(CV)和电化学阻抗谱(EIS)测试电化学性能.结果表明,花青素和叶绿素共敏化后拓宽了光谱吸收波长范围,并具有更快的电子注入速率,减少了电子的复合.在AM 1.5G太阳光模拟下,测试其光电性能,发现它的光电转换效率比单独的花青素和叶绿素染料分别提高了12%和22%.
Anthocyanin and chlorophyll were extracted from Lycium ruthencium Murray and Spinach. Dye-sensitized solar cells were fabricated by using anthocyanin, chlorophyll and anthocyanin/chlorophyll as sensitizers. The UV-Vis, cyclic voltammetry and EIS have being used to characterize the dyes. The re- sult showed that the co-sensitized dye can broaden the range of spectral absorption and covered the visible light spectrum and had a faster electron injection. Under AM 1.5G illumination, the conversion efficiency of Co-sensitization comparing with anthocyanin and chlorophyll solar cell was improved 12% and 22%.
作者
王秉安
杨桂军
陈慧媛
WANG Bing-an;YANG Gui-jun;CHEN Hui-yuan(College of Chemical Engineering, Qinghai University, Xining 810016, China)
出处
《青海师范大学学报（自然科学版）》
2018年第1期26-31,共6页
Journal of Qinghai Normal University(Natural Science Edition)
关键词
染料敏化太阳能电池
花青素
叶绿素
共敏化
dye-sensitized solar cell
anthocyanin
chlorophyll
co-sensitization
