scholarly journals Adjusting the photovoltaic performance of big fused ring-based small molecules by tailoring with different modifications

RSC Advances ◽  
2021 ◽  
Vol 11 (63) ◽  
pp. 39625-39635
Author(s):  
Min Li ◽  
Manjun Xiao ◽  
Zuojia Li
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Fused Ring

Three novel A–D–A type small-molecule donor materials, with anthanthrene (AAN) as the electron-donating core, and thiophene as π-bridge units, have been designed and synthesized for application in bulk-heterojunction (BHJ) organic solar cells (OSCs).

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.

Influence of thermal and solvent annealing on the morphology and photovoltaic performance of solution processed, D–A–D type small molecule-based bulk heterojunction solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (113) ◽  
pp. 93579-93590 ◽  
Author(s):  
C. H. Pavan Kumar ◽  
K. Ganesh ◽  
T. Suresh ◽  
Abhishek Sharma ◽  
K. Bhanuprakash ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Thermal Annealing ◽  
Small Molecule ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Solution Processed ◽  
Solvent Annealing ◽  
Heterojunction Solar Cells ◽  
Bhj Device

Four new small molecules CSDPP9–CSDPP12 were obtained with appended electron donating units in the molecular terminals of a DPP core. On solvent and thermal annealing, for the CSDPP11:PC71BM blend, the BHJ device displayed a PCE of 5.47%.

Phenothiazine-based small-molecule organic solar cells with power conversion efficiency over 7% and open circuit voltage of about 1.0 V using solvent vapor annealing

2018 ◽  
Vol 20 (9) ◽  
pp. 6321-6329 ◽  
Author(s):  
Yogajivan Rout ◽  
Rajneesh Misra ◽  
Rahul Singhal ◽  
Subhayan Biswas ◽  
Ganesh D. Sharma
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Open Circuit ◽  
Solvent Vapor ◽  
Heterojunction Solar Cells ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

We have used two unsymmetrical small molecules with a D–A–D–π–D configuration as small molecule donors, along with PC71BM as an acceptor, for solution processed bulk heterojunction solar cells.

D–A–D–π–D–A–D type diketopyrrolopyrrole based small molecule electron donors for bulk heterojunction organic solar cells

2016 ◽  
Vol 18 (25) ◽  
pp. 16950-16957 ◽  
Author(s):  
Yuvraj Patil ◽  
Rajneesh Misra ◽  
Abhishek Sharma ◽  
Ganesh D. Sharma
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Electron Donors

Two organic small molecules based on diketopyrrolopyrrole (DPP) units having a D–A–D–π–D–A–D structure denoted as DPP-DPP and DPPTDPP were synthesized.

Application of small molecules based on a dithienogermole core in bulk heterojunction organic solar cells and perovskite solar cells

2020 ◽  
Vol 4 (7) ◽  
pp. 2168-2175
Author(s):  
B. Yadagiri ◽  
K. Narayanaswamy ◽  
Towhid H. Chowdhury ◽  
Ashraful Islam ◽  
Vinay Gupta ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Synthesis And Characterization ◽  
Donor Material

We report the synthesis and characterization of a dithienogermole (DTGe) based small molecule, named Ge-PO-2CN, as a donor material for bulk heterojunction (BHJ) organic solar cells (OSCs) and as a hole transport material (HTM) for dopant-free perovskite solar cells (PSCs).

Tuning the central fused ring and terminal units to improve the photovoltaic performance of Ar(A–D)2 type small molecules in solution-processed organic solar cells

2016 ◽  
Vol 4 (13) ◽  
pp. 4952-4961 ◽  
Author(s):  
Jianhua Chen ◽  
Linrui Duan ◽  
Manjun Xiao ◽  
Qiong Wang ◽  
Bin Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Solution Processed ◽  
Fused Ring ◽  
Terminal Units

A series of Ar(A–D)2 type small molecules containing a pyrene core were synthesized. A significantly improved power conversion efficiency of 5.88% was obtained for ThDPP2Py based organic solar cells.

Small molecule based N-phenyl carbazole substituted diketopyrrolopyrroles as donors for solution-processed bulk heterojunction organic solar cells

2016 ◽  
Vol 18 (33) ◽  
pp. 22999-23005 ◽  
Author(s):  
Yuvraj Patil ◽  
Rajneesh Misra ◽  
F. C. Chen ◽  
Ganesh D. Sharma
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Solution Processed ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Homo Lumo

We report two acetylene-bridged small molecules DPP5 and DPP6 with low HOMO–LUMO gaps as donors along with PC71BM as an acceptor for the fabrication of solution-processed bulk heterojunction solar cells.

Furan-bridged thiazolo [5,4-d]thiazole based D–π–A–π–D type linear chromophore for solution-processed bulk-heterojunction organic solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6286-6293 ◽  
Author(s):  
M. Nazim ◽  
Sadia Ameen ◽  
M. Shaheer Akhtar ◽  
Hyung-Kee Seo ◽  
Hyung-Shik Shin
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Solution Processed ◽  
Organic Chromophore

Novel furan-bridged thiazolo[5,4-d]thiazole based π-conjugated organic chromophore (RFTzR) was formulated and utilized for the fabrication of solution-processed small molecule organic solar cells (SMOSCs).

Sign in / Sign up

Export Citation Format

Share Document