Improved synthesis and photovoltaic performance of donor–acceptor copolymers based on dibenzothiophene-cored ladder-type heptacyclic units

2015 ◽  
Vol 3 (22) ◽  
pp. 5631-5641 ◽  
Author(s):  
Lixin Wang ◽  
Dongdong Cai ◽  
Changquan Tang ◽  
Meng Wang ◽  
Zhigang Yin ◽  
...  
Keyword(s):  
Building Block ◽  
Photovoltaic Performance ◽  
High Yield ◽  
Donor Acceptor

A ladder-type heptacyclic building block was synthesized with high yield and used for the construction of donor–acceptor copolymers with different π-spacers or different heteroatoms on the acceptor unit.

An expanded isoindigo unit as a new building block for a conjugated polymer leading to high-performance solar cells

2014 ◽  
Vol 2 (15) ◽  
pp. 5427-5433 ◽  
Author(s):  
Shugang Li ◽  
Zhongcheng Yuan ◽  
Jianyu Yuan ◽  
Ping Deng ◽  
Qing Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Building Block ◽  
Conjugated Polymer ◽  
High Performance ◽  
Fill Factor ◽  
Solar Cell Device ◽  
Donor Acceptor ◽  
First Time

An expanded isoindigo unit (IBTI) has been incorporated into a donor–acceptor conjugated polymer for the first time. The PCE of the solar cell device based on the new polymer reached 6.41% with a fill factor of 0.71.

High yield, solid exfoliation and liquid dispersion of graphite driven by a donor-acceptor interaction

Carbon ◽  
2017 ◽  
Vol 123 ◽  
pp. 695-707 ◽  
Author(s):  
Desi Hamed Gharib ◽  
Shaun Gietman ◽  
François Malherbe ◽  
Simon E. Moulton
Keyword(s):  
High Yield ◽  
Acceptor Interaction ◽  
Liquid Dispersion ◽  
Donor Acceptor

Synthesis and photovoltaic performance of donor-acceptor polymers containing benzo[1,2-b:4,5-b′]dithiophene with thienyl substituents

2013 ◽  
Vol 51 (12) ◽  
pp. 2622-2630 ◽  
Author(s):  
Prakash Sista ◽  
Ruvini S. Kularatne ◽  
Michael E. Mulholland ◽  
Mitchell Wilson ◽  
Natalie Holmes ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Donor Acceptor

Benzodifuran and benzodithiophene donor–acceptor polymers for bulk heterojunction solar cells

2015 ◽  
Vol 3 (13) ◽  
pp. 6980-6989 ◽  
Author(s):  
Peishen Huang ◽  
Jia Du ◽  
Samodha S. Gunathilake ◽  
Elizabeth A. Rainbolt ◽  
John W. Murphy ◽  
...  
Keyword(s):  
Solar Cells ◽  
Building Block ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Donor Acceptor

Four new donor–acceptor copolymers were synthesized by using benzo[1,2-b:4,5-b′]dithiophene and benzo[1,2-b:4,5-b′]difuran as donors and thieno[3,4-b]thiophene was used as the acceptor building block.

Thienoquinolinone as a new building block for wide bandgap semiconducting polymer donors for organic solar cells

2020 ◽  
Vol 8 (35) ◽  
pp. 12265-12271
Author(s):  
Jong-Woon Ha ◽  
Hee Su Kim ◽  
Chang Eun Song ◽  
Hea Jung Park ◽  
Do-Hoon Hwang
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Building Block ◽  
Wide Bandgap ◽  
Semiconducting Polymer ◽  
Aromatic Structure ◽  
Donor Acceptor

A new heterocyclic aromatic structure, thieno[3,2-c]quinolin-4(5H)-one (TQO), was designed and synthesized as an electron-accepting building block for donor–acceptor-type copolymers.

Visible light mediated, metal-free carbene transfer reactions of diazoalkanes with propargylic alcohols

2019 ◽  
Vol 55 (33) ◽  
pp. 4881-4884 ◽  
Author(s):  
Feifei He ◽  
Rene M. Koenigs
Keyword(s):  
Visible Light ◽  
Transfer Reactions ◽  
High Yield ◽  
Propargylic Alcohols ◽  
Metal Free ◽  
Sterically Demanding ◽  
Donor Acceptor ◽  
Carbene Transfer

The photolysis of donor–acceptor diazoalkanes in the presence of propargylic alcohols furnishes valuable, sterically demanding tetra-substituted cyclopropenes in high yield under metal-free conditions.

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.

scholarly journals Synthesis and photovoltaic properties of thieno[3,2-b]thiophenyl substituted benzo[1,2-b:4,5-b′]dithiophene copolymers

2014 ◽  
Vol 5 (23) ◽  
pp. 6710-6717 ◽  
Author(s):  
Zeyun Xiao ◽  
Jegadesan Subbiah ◽  
Kuan Sun ◽  
David J. Jones ◽  
Andrew B. Holmes ◽  
...  
Keyword(s):  
Solar Cell ◽  
Electron Donor ◽  
Building Block ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cell ◽  
Photovoltaic Properties ◽  
Bulk Heterojunction Solar Cell ◽  
Donor Acceptor

A new thienothiophene–benzodithiophene electron donor building block was synthesized and incorporated into 2-dimensional conjugated donor–acceptor polymers. The polymers were fully characterised and tested in bulk heterojunction solar cell devices.

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