High Efficiency Near-Infrared and Semitransparent Non-Fullerene Acceptor Organic Photovoltaic Cells

被引：399

作者：

Li, Yongxi ^{[1
]}

Lin, Jiu-Dong ^{[2
]}

Che, Xiaozhou ^{[1
]}

Qu, Yue ^{[1
]}

Liu, Feng ^{[3
,4
]}

Liao, Liang-Sheng ^{[2
]}

Forrest, Stephen R. ^{[1
]}

机构：

[1] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

[2] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China

[3] Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China

[4] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA CICIFSA, Shanghai 200240, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2017年 / 139卷 / 47期

基金：

中国国家自然科学基金;

关键词：

POLYMER SOLAR-CELLS; TRANSPARENT CATHODE ARCHITECTURE; POWER CONVERSION EFFICIENCY; SMALL MOLECULAR ACCEPTOR; ELECTRON-ACCEPTOR; CONJUGATED POLYMERS; BAND-GAP; PERFORMANCE; HETEROJUNCTION; OPTIMIZATION;

D O I：

10.1021/jacs.7b11278

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The absence of near-infrared (NIR) solar cells with high open circuit voltage (V-oc) and external quantum efficiency (EQE) has impeded progress toward achieving organic photovoltaic (OPV) power conversion efficiency PCE > 15%. Here we report a small energy gap (1.3 eV), chlorinated nonfullerene acceptor-based solar cell with PCE = 11.2 +/- 0.4%, short circuit current of 22.5 +/- 0.6 mA cm(-2), V-oc = 0.70 +/- 0.01 V and fill factor of 0.71 +/- 0,02, which is the highest performance reported to date for NIR single junction OPVs. Importantly, the EQE of this NIR solar cell reaches 75%, between 650 and 850 nm while leaving, a transparency window between 400 and 600 nm. The semitransparent OPV using an ultrathin (10 nm) Ag cathode shows PCE = 7.1 +/- 0.1%, with an average visible transmittance of 43 +/- 2%, Commission d'Eclairage chromaticity coordinates of (0.29, 0.32) and a color rendering index of 91 for simulated AM1.5 illumination transmitted through the cell.

引用

页码：17114 / 17119

页数：6

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