New small-molecule acceptors based on hexacyclic naphthalene(cyclopentadithiophene) for efficient non-fullerene organic solar cells

被引：75

作者：

Yi, Yuan-Qiu-Qiang

Feng, Huanran

Chang, Meijia

Zhang, Hongtao ^{[1
]}

Wan, Xiangjian

Li, Chenxi

Chen, Yongsheng ^{[1
]}

机构：

[1] Nankai Univ, Coll Chem, Key Lab Funct Polymer Mat, Ctr Nanoscale Sci & Technol,State Key Lab, Tianjin 300071, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2017年 / 5卷 / 33期

关键词：

POWER CONVERSION EFFICIENCY; ELECTRON-ACCEPTORS; CATHODE INTERLAYER; POLYMER; UNIT; MORPHOLOGY; ENABLES; NETWORK;

D O I：

10.1039/c7ta05809h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of new non-fullerene small molecule acceptors (NTIC, NTIC-Me, NTIC-OMe and NTIC-F) based on the acceptor-donor-acceptor (A-D-A) architecture, using hexacyclic naphthalene(cyclopentadithiophene) as the central unit, were designed and synthesized. The non-fullerene OSC device based on PBDB-T:NTIC showed a highest PCE of 8.63%. With a relatively high-lying LUMO level of NTIC-OMe, the PBDB-T:NTIC-OMe based device obtained a comparatively high V-oc of 0.965 V and a PCE of 8.61% simultaneously. The results demonstrate that the naphthalene core is a promising building block for constructing highly efficient non-fullerene acceptors and further boosting the photovoltaic performance of the devices.

引用

页码：17204 / 17210

页数：7

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