Issue 32, 2013

Novel porphyrin–phthalocyanine heterodimers and heteropentamers: synthesis, characterization and application in organic solar cells

Abstract

Two novel types of covalently ether-linked porphyrinphthalocyanine (Por–Pc), heterodimer and heteropentamer, connected through the meso phenyl group of the porphyrin have been synthesized for the first time. The Por–Pc heterodimer and heteropentamer have more delocalized π-electrons and therefore their conjugated degree is higher. In addition, these compounds possess better solubility and a wider light absorption than typical single porphyrins and phthalocyanines. Solar cell devices based on as-synthesized porphyrinphthalocyanine heterodimers and heteropentamers as donor materials and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as the acceptor material are prepared and show a noticeably better performance. The suitable ZnPor–(O–ZnPc)4 : PCBM weight ratio for photovoltaic devices is 4 : 1 and the highest photovoltaic properties are achieved based on ZnPor–(O–ZnPc)4 : PCBM (4 : 1) annealed at 140 °C in a vacuum for 20 min. The highest PCE is 2.08.

Graphical abstract: Novel porphyrin–phthalocyanine heterodimers and heteropentamers: synthesis, characterization and application in organic solar cells

Supplementary files

Article information

Article type
Paper
Submitted
04 Mar 2013
Accepted
09 May 2013
First published
20 Jun 2013

RSC Adv., 2013,3, 13259-13264

Novel porphyrinphthalocyanine heterodimers and heteropentamers: synthesis, characterization and application in organic solar cells

T. Zhang, M. Liu, Q. Zeng, Z. Wu, L. Piao and S. Zhao, RSC Adv., 2013, 3, 13259 DOI: 10.1039/C3RA41058G

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