Synthesis of annulated thiophene perylene bisimide analogues: their applications to bulk heterojunction organic solar cells.

Synthesis and characterization of a new perylene bisimide (PBI) derivative and its application as electron acceptor for bulk heterojunction polymer solar cells

1566-1199/$ see front matter 2012 Elsevier B.V http://dx.doi.org/10.1016/j.orgel.2012.07.002 ⇑ Corresponding author. Tel.: +91 01426 2473 511240. E-mail address: [email protected] (G.D. S A symmetrical perylene bisimide derivative (PBI) with 2-(4-nitrophenyl)acrylonitrile groups at the 1,7 bay positions of perylene and solubilizing cyclohexyl units was synthesized and characterized. The abs...

A high performance three-dimensional thiophene-annulated perylene dye as an acceptor for organic solar cells.

A high performance three-dimensional (3D) thiophene-annulated perylene dye, namely tetra-PBI-S, was designed and synthesized. The appropriate LUMO level, balanced carrier mobilities and favourable phase separation make tetra-PBI-S based solar cells show a much higher power conversion efficiency (PCE) of 6.2% than tetra-PBI based solar cells with a PCE of 3.6%.

FDPHOTOC15: Photoinduced electron transfer (PET) versus excimer formation in supramolecular p/n-heterojunctions of perylene bisimide dyes and implications for organic photovoltaics

Organic and Hybrid Solar Cells Based on Well-Defined Organic Semiconductors and Morphologies

Abstract. Organic and hybrid bulk-heterojunction solar cells are investigated. We describe the synthesis and solar cell characteristics of well-defined functional thiophene dendrimers. Three-dimensional morphologies of the polymer – metal oxide bulk heterojunctions are analysed with electron tomography and are analysed and simulated with stochastic models, to establish the effect of processing ...

Liquid Crystalline Polymers for Efficient Bilayer-Bulk-Heterojunction Solar Cells

The unique temperature-dependent solubility of liquid crystalline poly(2,5-bis(3-alkylthiophen-2-yl)thieno[3,2b]thiophene) (PBTTT) enabled us to construct the first bilayer-bulk-heterojunction devices based on a PBTTT: PCBM (1:2)/MDMO-PPV:[70]PCBM (1:4) active layer. The bilayer device exhibited an extended optical absorption over the solar spectrum and concentration gradient that enhanced char...