Synthesis and characterization of three organic dyes with various donors and rhodanine ring acceptor for use in dye-sensitized solar cells
作者:T. Y. Wu、M. H. Tsao、F. L. Chen、S. G. Su、C. W. Chang、H. P. Wang、Y. C. Lin、I. W. Sun
DOI:10.1007/bf03246061
日期:2010.9
A series of new organic dyes comprising carbazole, iminodibenzyl, and phenothiazine moieties as the electron donors and rhodanine ring as the electron acceptor/anchoring groups were designed and developed for use in dye-sensitized solar cells. HOMO and LUMO energy level tuning was achieved by varying the carbazole, iminodibenzyls and phenothiazine donors. This was evidenced by spectral and electrochemical
设计并开发了一系列新的有机染料,用于染料敏化太阳能电池,其中咔唑,亚氨基二苄基和吩噻嗪部分为电子给体,而若丹宁环为电子受体/锚定基团。通过改变咔唑,亚氨基二苄基和吩噻嗪供体,实现了HOMO和LUMO能级的调节。光谱和电化学实验以及密度泛函理论计算证明了这一点。电化学研究表明,吩噻嗪单元在降低电离势方面比亚氨基二苄基和咔唑单元更有效。吩噻嗪染料的太阳能-电能转换效率(η)为4.87%;咔唑和亚氨基二苄基染料显示η分别为2.54%和3.52%。这些发现表明,使用咔唑,亚氨基二苄基和吩噻嗪供体作为光敏化剂是染料敏化太阳能电池的有前途的候选人。