Synthesis and Characterization of Organic Dyes Containing Various Donors and Acceptors

oleh: Wen-Chung Ou-Yang, Yuan-Chung Lin, Hong-Paul Wang, Cheng-Wen Chang, Shyh-Gang Su, Ming-Hsiu Tsao, Fu-Lin Chen, Tzi-Yi Wu, I-Wen Sun

Format: Article
Diterbitkan: MDPI AG 2010-01-01

Deskripsi

New organic dyes comprising carbazole, iminodibenzyl, or phenothiazine moieties, respectively, as the electron donors, and cyanoacetic acid or acrylic acid moieties as the electron acceptors/anchoring groups were synthesized and characterized. The influence of heteroatoms on carbazole, iminodibenzyl and phenothiazine donors, and cyano-substitution on the acid acceptor is evidenced by spectral, electrochemical, photovoltaic experiments, and density functional theory calculations. The phenothiazine dyes show solar-energy-to-electricity conversion efficiency (η) of 3.46–5.53%, whereas carbazole andiminodibenzyl dyesshow η of 2.43% and 3.49%, respectively.