Hello,Welcome to XFNANO!
Industry trends Home > News Center > Industry trends
Asymmetric A–D–π–A-type nonfullerene small molecule acceptors for efficient organic solar cells
2019/8/28 16:00:56

Dear XFNANO friends:

Recently, Yanming Sun's research team from Beihang University did some research on Fullerene and they published a paper on Journal of Materials Chemistry A named "Asymmetric A–D–π–A-type nonfullerene small molecule acceptors for efficient organic solar cells". In this paper, they introduced the usage of fullerene in solar cells. This can be a guidance in similar experiments.

There has been significant progress with regard to research on nonfullerene small molecule acceptors (SMAs) during the past several years. Typically, high-performance nonfullerene SMAs are based on symmetric A–D–A or A–π–D–π–A structural frameworks. In this study, a novel asymmetric nonfullerene SMA, TTPT-T-2F, with an A–D–π–A structure is rationally designed and synthesized. In addition, a symmetric A–D–A-type nonfullerene SMA, IT-2F, and a symmetric A–π–D–π–A-type nonfullerene SMA, T-TPT-T-2F, are also synthesized for comparison. When PBT1-C is employed as a polymer donor, a promising power conversion efficiency (PCE) of 12.71% is achieved for TTPT-T-2F-based organic solar cells (OSCs), which surpasses those of devices based on IT-2F (PCE = 10.54%) and T-TPT-T-2F (PCE = 10.71%). Favorable phase separation toward efficient and more balanced charge transport accounts for the higher PCE achieved in the PBT1-C:TTPT-T-2F device. There results demonstrate that a small molecule acceptor with an A–D–π–A structural framework is a promising class of nonfullerene acceptors for OSCs.


You might as well click the full text link below to exhaustively know more.


WeChat scavenging
Online consultation

Enjoy online registration, online order and other convenient services