scholarly journals Self-assembled conjugated polyelectrolyte–surfactant complexes as efficient cathode interlayer materials for bulk heterojunction organic solar cells

2015 ◽  
Vol 3 (47) ◽  
pp. 23905-23916 ◽  
Author(s):  
Michèle Chevrier ◽  
Judith E. Houston ◽  
Jurgen Kesters ◽  
Niko Van den Brande ◽  
Ann E. Terry ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Conjugated Polyelectrolyte ◽  
Self Assembled ◽  
Interface Layers ◽  
Conversion Efficiencies ◽  
Cathode Interlayer

Conjugated polyelectrolyte–surfactant cathodic interface layers lead to improved power conversion efficiencies in organic solar cells.

Incorporating Semiflexible Linkers into Double-Cable Conjugated Polymers via Click Reaction

2021 ◽  
Author(s):  
Zhaofan Yang ◽  
Shijie Liang ◽  
Baiqiao Liu ◽  
Jing Wang ◽  
Fan Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Organic Solar Cells ◽  
Click Reaction ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Single Component ◽  
Photovoltaic Technology ◽  
Conversion Efficiencies ◽  
Excellent Stability

Single-component organic solar cells (SCOSCs) have been recognized as the promising photovoltaic technology due to the excellent stability, but their power conversion efficiencies (PCEs) are far lagging their bulk-heterojunction counterparts....

scholarly journals Effects of Nanoimprinted Structures on the Performance of Organic Solar Cells

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Hardeep Singh Gill ◽  
Lian Li ◽  
Haizhou Ren ◽  
Ravi Mosurkal ◽  
Jayant Kumar
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Incident Light ◽  
Power Conversion ◽  
Heterojunction Solar Cells ◽  
Higher Power ◽  
Carrier Collection ◽  
Conversion Efficiencies

The effect of nanoimprinted structures on the performance of organic bulk heterojunction solar cells was investigated. The nanostructures were formed over the active layer employing the soft lithographic technique. The measured incident photon-to-current efficiency revealed that the nanostructured morphology over the active layer can efficiently enhance both light harvesting and charge carrier collection due to improvement of the absorption of incident light and the buried nanostructured cathode, respectively. The devices prepared with the imprinted nanostructures exhibited significantly higher power conversion efficiencies as compared to those of the control cells.

scholarly journals A-D-A-Type Oligothiophenes Containing Benzothiadiazole Terminal Units for Small Molecule Organic Solar Cells

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Simon Steinberger ◽  
Amaresh Mishra ◽  
Gisela Schulz ◽  
Christian Uhrich ◽  
Martin Pfeiffer ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Visible Spectrum ◽  
Photovoltaic Properties ◽  
Acceptor Group ◽  
Moderate Power ◽  
Conversion Efficiencies ◽  
Homo Lumo

AbstractThe electron-deficient, fused-heterocyclebenzo[c][1,2,5]thiadiazole (BTDA) is investigated as acceptor group in A-D-A-type oligothiophenes in order to correlate their relative acceptor strength with opto-electronic and photovoltaic properties. In this respect, two novel BDTA-capped oligothiopheneswere synthesized and characterized by optical and electrochemical measurements. They showed broad absorptions in the visible spectrum and HOMO-LUMO energies well suited for organic solar cells. The attachment of terminal BTDA acceptor units to the conjugated oligothiophene backbone resulted in a hypsochromic shift in UV-Vis absorption and larger band gap in comparison to previously reported analogous dicyanovinylene (DCV)-substituted oligothiophenes indicating that BDTA is a weaker acceptor than DCV. Vacuumprocessed m-i-p (metal-intrinsic-p-doped)-type bilayer solar cells using these co-oligomers as donor and C60 as acceptor gave moderate power conversion efficiencies of around 1.0%. Bulk-heterojunction (BHJ) solar cells prepared by solution-processing using fullerene PC61BM as acceptor generated slightly lower efficiencies of 0.9%, whichwere increased to 1.5% by using the higher fullerene PC71BM. It was found that the cell efficiencies were mostly limited by the low photocurrent densities due to moderate light absorption in the bilayer devices and low fill factors coming from inefficient charge transport in the solutionprocessed BHJ devices.

Highly efficient small molecule solar cells fabricated with non-halogenated solvents

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92312-92317 ◽  
Author(s):  
Liangang Xiao ◽  
Chang Liu ◽  
Ke Gao ◽  
Yajing Yan ◽  
Junbiao Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
High Power ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Highly Efficient ◽  
Halogenated Solvents ◽  
Conversion Efficiencies

Fabricated with non-halogenated solvents toluene and o-xylene, the bulk-heterojunction organic solar cells based on a porphyrin small molecule show high power conversion efficiencies up to 5.46% and 5.85%, respectively.

Towards predicting the power conversion efficiencies of organic solar cells from donor and acceptor molecule structures

2018 ◽  
Vol 6 (13) ◽  
pp. 3276-3287 ◽  
Author(s):  
Yecheng Zhou ◽  
Guankui Long ◽  
Ailin Li ◽  
Angus Gray-Weale ◽  
Yongsheng Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Multiscale Simulation ◽  
Molecular Structures ◽  
Acceptor Molecule ◽  
Simulation Framework ◽  
Donor And Acceptor ◽  
Conversion Efficiencies

In this study, we developed a multiscale simulation framework to estimate the power conversion efficiencies of bulk heterojunction organic solar cells only based on the molecular structures of the donor and acceptor.

Preparation of efficient oligomer-based bulk-heterojunction solar cells from eco-friendly solvents

2017 ◽  
Vol 5 (38) ◽  
pp. 9920-9928 ◽  
Author(s):  
Duško Popović ◽  
Ibrahim Ata ◽  
Johannes Krantz ◽  
Sebastian Lucas ◽  
Mika Lindén ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Halogenated Solvents ◽  
Conversion Efficiencies

A series of A–D–A type co-oligomers used as donors in organic solar cells are presented. Devices prepared exclusively from non-halogenated solvents via doctor-blading gave power conversion efficiencies of up to 7%.

Development of strongly absorbing S,N-heterohexacene-based donor materials for efficient vacuum-processed organic solar cells

2016 ◽  
Vol 4 (17) ◽  
pp. 3715-3725 ◽  
Author(s):  
Christoph Wetzel ◽  
Amaresh Mishra ◽  
Elena Mena-Osteritz ◽  
Karsten Walzer ◽  
Martin Pfeiffer ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
New Class ◽  
Conversion Efficiencies

A new class of A–D–A molecular donor materials based on planar S,N-heterohexacenes is developed for vacuum-processed planar and bulk-heterojunction solar cells providing promising power conversion efficiencies up to 7.1%.

Nonfullerene acceptors for P3HT-based organic solar cells

2021 ◽  
Author(s):  
Shreyam Chatterjee ◽  
Seihou JINNAI ◽  
Yutaka Ie
Keyword(s):  
Solar Cells ◽  
High Power ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Conversion Efficiencies

Progressive advancement of remarkably high power conversion efficiencies (PCEs) of organic solar cells (OSCs) largely depends on the development of norfullerene acceptors (NFAs), revealing stupendous ability of OSCs to shift...

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