Synthesis, Characterization and Photovoltaic Properties of Di-Anchoring Organic Dyes

• Autor(a) principal: Wu,Tzi-Yi
• Data de Publicação: 2011
• Outros Autores: Tsao,Ming-Hsiu, Su,Shyh-Gang, Wang,H. Paul, Lin,Yuan-Chung, Chen,Fu-Lin, Chang,Cheng-Wen, Sun,I-Wen
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Chemical Society (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000400023
• topic: dye-sensitized solar cells; electrochemistry; organic dyes; electron donor; rhodanine

Three new organic dyes comprising carbazole, iminodibenzyl and phenothiazine moieties, as electron donors and di-anchoring rhodanine rings as the electron acceptors, were synthesized and evaluated for use in dye-sensitized solar cells. A solar cell employing dye-containing phenothiazine as a hole-transporting unit and di-anchoring rhodanine rings as the electron acceptors exhibits a short circuit photocurrent density of 10.6 mA cm-2, an open-circuit voltage of 0.658 V and a fill factor of 0.7, corresponding to an overall conversion efficiency of 4.91% at standard AM 1.5 sunlight.