Jump to main content
Jump to site search


Naphthodifuran-based zigzag-type polycyclic arene with conjugated side chains for efficient photovoltaics

Author affiliations

Abstract

Ladder-type conjugated structures with rigid and coplanar molecular frameworks feature longer effective conjugation, affirmative optoelectronic properties and strong intermolecular π–π interactions, which are ideal characteristics for organic photovoltaics. Here, a new “zigzag” angular-fused naphthodifuran (zNDF) based on alkoxyphenyl side chains was designed and synthesized. The distannylated zNDF building block was copolymerized with 4,7-di(5-bromothiophen-2-yl)-5,6-dioctyloxybenzo[c][1,2,5]thiadiazole and 5,8-bis(5-bromothiophen-2-yl)-2,3-bis(4-(2-ethylhexyloxy)-3-fluorophenyl)-6,7-difloroquinoxaline (Br-BT and Br-ffQx) acceptor units by Stille cross coupling reaction to form two new medium bandgap donor–acceptor polymers PzNDFP-BT and PzNDFP-ffQx, respectively. The photovoltaic properties of the copolymers blended with [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) as an electron acceptor were investigated. A 6.9% efficiency was achieved from the single device based on the PzNDFP-BT : PC71BM (1 : 1.5, w/w) blend film with a 0.25% 1,8-diiodooctane (DIO) additive, which is among the highest efficiency for zNDF-based polymer solar cells.

Graphical abstract: Naphthodifuran-based zigzag-type polycyclic arene with conjugated side chains for efficient photovoltaics

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 09 Apr 2017, accepted on 07 May 2017 and first published on 09 May 2017


Article type: Paper
DOI: 10.1039/C7CP02283B
Citation: Phys. Chem. Chem. Phys., 2017, Advance Article
  •   Request permissions

    Naphthodifuran-based zigzag-type polycyclic arene with conjugated side chains for efficient photovoltaics

    H. Peng, X. Luan, L. Feng, J. Yuan, Z. Zhang, Y. Li and Y. Zou, Phys. Chem. Chem. Phys., 2017, Advance Article , DOI: 10.1039/C7CP02283B

Search articles by author