General Rules for the Impact of Energetic Disorder and Mobility on Nongeminate Recombination in Phase-Separated Organic Solar Cells

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Guangzheng Zuo ◽  
Safa Shoaee ◽  
Martijn Kemerink ◽  
Dieter Neher
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
General Rules ◽  
Energetic Disorder ◽  
The Impact

scholarly journals Thiophene- and Carbazole-Substituted N-Methyl-Fulleropyrrolidine Acceptors in PffBT4T-2OD Based Solar Cells

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1267 ◽  
Author(s):  
Hugo Gaspar ◽  
Flávio Figueira ◽  
Karol Strutyński ◽  
Manuel Melle-Franco ◽  
Dzmitry Ivanou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Systematic Investigation ◽  
Force Microscopy ◽  
Energetic Disorder ◽  
Lowest Unoccupied Molecular Orbital ◽  
Device Properties ◽  
The Impact

The impact of fullerene side chain functionalization with thiophene and carbazole groups on the device properties of bulk-heterojunction polymer:fullerene solar cells is discussed through a systematic investigation of material blends consisting of the conjugated polymer poly[(5,6-difluoro-2,1,3-benzothiadiazol-4,7-diyl)-alt-(3,3‴-di(2-octyldodecyl)-2,2′;5′,2″;5″,2‴-quaterthiophen-5,5‴-diyl)] (PffBT4T-2OD) as donor and C60 or C70 fulleropyrrolidines as acceptors. The photovoltaic performance clearly depended on the molecular structure of the fulleropyrrolidine substituents although no direct correlation with the surface morphology of the photoactive layer, as determined by atomic force microscopy, could be established. Although some fulleropyrrolidines possess favorable lowest unoccupied molecular orbital levels, when compared to the standard PC71BM, they originated OPV cells with inferior efficiencies than PC71BM-based reference cells. Fulleropyrrolidines based on C60 produced, in general, better devices than those based on C70, and we attribute this observation to the detrimental effect of the structural and energetic disorder that is present in the regioisomer mixtures of C70-based fullerenes, but absent in the C60-based fullerenes. These results provide new additional knowledge on the effect of the fullerene functionalization on the efficiency of organic solar cells.

The Impact of Surface Processes on the J–V Characteristics of Organic Solar Cells

2020 ◽  
Vol 10 (2) ◽  
pp. 514-521
Author(s):  
Ali R. Khalf ◽  
Jovana P. Gojanovic ◽  
Natasa A. Cirovic ◽  
Sandra Zivanovic ◽  
Petar S. Matavulj
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Surface Processes ◽  
The Impact

scholarly journals The impact of thermal treatment on the performance of benzo[1,2-b:4,5-b′]difuran-based organic solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (65) ◽  
pp. 39916-39921
Author(s):  
Bo Liu ◽  
Xiaobo Wang ◽  
Lang Li ◽  
Gang Wang
Keyword(s):  
Solar Cells ◽  
Thermal Treatment ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Stille Coupling ◽  
Low Bandgap ◽  
The Impact ◽  
Coupling Polymerization

The new low bandgap benzo[1,2-b:4,5-b′]difuran (BDF)-based organic small molecule, namely B1, was synthesized by Stille coupling polymerization reactions.

scholarly journals Green-Solvent-Processed Conjugated Polymers for Organic Solar Cells: The Impact of Oligoethylene Glycol Side Chains

2019 ◽  
Vol 1 (4) ◽  
pp. 804-814 ◽  
Author(s):  
Zheng Chen ◽  
Liang Yan ◽  
Jeromy James Rech ◽  
Jun Hu ◽  
Qianqian Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Organic Solar Cells ◽  
Side Chains ◽  
Green Solvent ◽  
Oligoethylene Glycol ◽  
The Impact

scholarly journals The impact of active layer nanomorphology on the efficiency of organic solar cells based on a squaraine dye electron donor

2016 ◽  
Vol 700 ◽  
pp. 012052
Author(s):  
D Stoyanova ◽  
S Kitova ◽  
J Dikova ◽  
M Kandinska ◽  
A Vasilev ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Electron Donor ◽  
Organic Solar Cells ◽  
Squaraine Dye ◽  
The Impact
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