Porphyrin based push–pull conjugates as donors for solution-processed bulk heterojunction solar cells: a case of metal-dependent power conversion efficiency. Issue 30 (25th July 2017)

• Record Type: Journal Article
• Authors: Mishra, Ruchika; Regar, Ramprasad; Singhal, Rahul; Panini, Piyush; Sharma, Ganesh D.; Sankar, Jeyaraman
• Is Part Of: Journal of materials chemistry. Volume 5:Issue 30(2017)
• Page Start: 15529
• Page End: 15533
• Publication Date: 2017-07-25
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c7ta05338j
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : We demonstrate here the effect of metals in the porphyrin core of a PBI–porphyrin conjugate on the power conversion efficiency. Abstract : Solution-processed bulk-heterojunction organic solar cells have been achieved using unsymmetrical metalloporphyrin–PBI dyads as small molecular donors. Due to panchromatic absorption, a photon-to-current conversion efficiency of 6.18% was obtained for 3-Zn:PC71BM with a remarkable energy loss ( E loss ) of 0.60 eV, which is in line with the best values recorded so far for porphyrin-based small-molecular donors.