Medium-Bandgap (Acceptor′–Donor)2Acceptor-Type Small-Molecule Donors Based on an Asymmetric Thieno[3,2-c]isochromene Building Block for Organic Solar Cells with High Efficiency and Voltage

2019 ◽  
Vol 2 (7) ◽  
pp. 4730-4736 ◽  
Author(s):  
Wenchao Wang ◽  
Guangjun Zhang ◽  
Jiali Guo ◽  
Ziqian Gu ◽  
Rulin Hao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Building Block ◽  
High Efficiency

Effects of lateral-chain thiophene fluorination on morphology and charge transport of BDT-T based small molecule donors: A study with multiscale simulations

2021 ◽  
Author(s):  
Chunlin Xu ◽  
Chuang Yao ◽  
Shaohui Zheng
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Building Block ◽  
Multiscale Simulations

Thiophene substituted benzo[1,2-b:4,5-b′]dithiophene (BDT-T) is widely used as the building block of promising donor materials in organic solar cells (OSCs). Fluorination on the lateral-chain thiophenes of BDT-T is a considerable...

Simple-structured small molecule acceptors constructed by a weakly electron-deficient thiazolothiazole core for high-efficiency non-fullerene organic solar cells

2018 ◽  
Vol 6 (47) ◽  
pp. 24267-24276 ◽  
Author(s):  
Wenhong Peng ◽  
Guangjun Zhang ◽  
Lin Shao ◽  
Chao Ma ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Novel Strategy

A novel strategy is proposed to construct simple-structured SMAs using a weakly electron-deficient thiazolothiazole (TTz) core. The highest PCE of 8.77% is recorded for TTz1-based OSCs, which is the highest efficiency to date among non-fullerene OSCs with simple-structured SMAs.

High-efficiency organic solar cells based on a small-molecule donor and a low-bandgap polymer acceptor with strong absorption

2018 ◽  
Vol 6 (20) ◽  
pp. 9613-9622 ◽  
Author(s):  
Yankang Yang ◽  
Beibei Qiu ◽  
Shanshan Chen ◽  
Qiuju Zhou ◽  
Ying Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Strong Absorption ◽  
Low Bandgap ◽  
Polymer Acceptor

An OSC based on a small molecule DR3TBDTT as donor and n-type polymer PZ1 as acceptor was fabricated, and PCE of the device reached 5.86% which is the highest for the OSCs based small molecule donor/polymer acceptor.

High-efficiency all-small-molecule organic solar cells based on an organic molecule donor with an asymmetric thieno[2,3-f] benzofuran unit

2020 ◽  
Vol 63 (9) ◽  
pp. 1246-1255 ◽  
Author(s):  
Rui Sun ◽  
Yao Wu ◽  
Jing Guo ◽  
Zhenghui Luo ◽  
Chuluo Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Organic Molecule ◽  
High Efficiency

Cyano-functionalized small-molecule acceptors for high-efficiency wide-bandgap organic solar cells

2020 ◽  
Vol 8 (27) ◽  
pp. 9195-9200
Author(s):  
Jun Zhang ◽  
Jie Lv ◽  
Xiyue Dong ◽  
Tongle Xu ◽  
Xuexin Dai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Wide Bandgap ◽  
High Demand

Wide-bandgap non-fullerene acceptors (NFAs) are in high demand for constructing efficient ternary or tandem organic solar cells (OSCs), yet the scarcity of them remains an important issue that needs exploration and perfection.

Constructing high efficiency non-fullerene all-small-molecule ternary organic solar cells by employing structurally similar acceptors

2021 ◽  
Author(s):  
Ziyun Huang ◽  
Ruimin Zhou ◽  
Min Lv ◽  
Hao Zhang ◽  
Chen Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Efficiency

Constructing high efficiency non-fullerene all-small-molecule ternary organic solar cells by employing structurally similar acceptors.

Concurrent improvement in JSC and VOC in high-efficiency ternary organic solar cells enabled by a red-absorbing small-molecule acceptor with a high LUMO level

2020 ◽  
Vol 13 (7) ◽  
pp. 2115-2123 ◽  
Author(s):  
Tao Liu ◽  
Ruijie Ma ◽  
Zhenghui Luo ◽  
Yuan Guo ◽  
Guangye Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Lumo Level

The ternary device achieved an excellent PCE of 15.02% with enhancement in both VOC and JSC by adding a red-absorbing SMA with a high LUMO level.

scholarly journals All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Ruimin Zhou ◽  
Zhaoyan Jiang ◽  
Chen Yang ◽  
Jianwei Yu ◽  
Jirui Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Photovoltaic System ◽  
Active Layers ◽  
Donor Acceptor

AbstractThe high efficiency all-small-molecule organic solar cells (OSCs) normally require optimized morphology in their bulk heterojunction active layers. Herein, a small-molecule donor is designed and synthesized, and single-crystal structural analyses reveal its explicit molecular planarity and compact intermolecular packing. A promising narrow bandgap small-molecule with absorption edge of more than 930 nm along with our home-designed small molecule is selected as electron acceptors. To the best of our knowledge, the binary all-small-molecule OSCs achieve the highest efficiency of 14.34% by optimizing their hierarchical morphologies, in which the donor or acceptor rich domains with size up to ca. 70 nm, and the donor crystals of tens of nanometers, together with the donor-acceptor blending, are proved coexisting in the hierarchical large domain. All-small-molecule photovoltaic system shows its promising for high performance OSCs, and our study is likely to lead to insights in relations between bulk heterojunction structure and photovoltaic performance.

Sign in / Sign up

Export Citation Format

Share Document