scholarly journals Surface Plasmon-Induced Band Gap in the Photocurrent Response of Organic Solar Cells

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Ribal Georges Sabat ◽  
Marcos Jose Leite Santos ◽  
Paul Rochon
Keyword(s):  
Band Gap ◽  
Surface Plasmons ◽  
Surface Plasmon ◽  
Organic Solar Cells ◽  
Surface Relief ◽  
Bulk Heterojunction ◽  
Polymer Surface ◽  
Photocurrent Response ◽  
Azo Polymer ◽  
Grating Depth

A 260 nm layer of organic bulk heterojunction blend of the polymer poly(3-hexylthiophene) (P3HT) and the fullerene [6,6]-phenyl C61-butyric (PCBM) was spin-coated in between aluminum and gold electrodes, respectively, on top of a laser inscribed azo polymer surface-relief diffraction grating. Angle-dependent surface plasmons (SPs) with a large band gap were observed in the normalized photocurrent by the P3HT-PCBM layer as a function of wavelength. The SP-induced photocurrents were also investigated as a function of the grating depth and spacing.

scholarly journals Planar D-π-A Configured Dimethoxy Vinylbenzene Based Small Organic Molecule for Solution-Processed Bulk Heterojunction Organic Solar Cells

2020 ◽  
Vol 10 (17) ◽  
pp. 5743
Author(s):  
Shabaz Alam ◽  
M. Shaheer Akhtar ◽  
Abdullah ◽  
Eun-Bi Kim ◽  
Hyung-Shik Shin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
Organic Molecule ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Solution Processed ◽  
Small Organic Molecule ◽  
Donor Material

A new and effective planar D-π-A configured small organic molecule (SOM) of 2-5-(3,5-dimethoxystyryl)thiophen-2-yl)methylene)-1H-indene-1,3(2H)-dione, abbreviated as DVB-T-ID, was synthesized using 1,3-indanedione acceptor and dimethoxy vinylbenzene donor units, connected through a thiophene π-spacer. The presence of a dimethoxy vinylbenzene unit and π-spacer in DVB-T-ID significantly improved the absorption behavior by displaying maximum absorbance at ~515 nm, and the reasonable band gap was estimated as ~2.06 eV. The electronic properties revealed that DVB-T-ID SOMs exhibited promising HOMO (−5.32 eV) and LUMO (−3.26 eV). The synthesized DVB-T-ID SOM was utilized as donor material for fabricating solution-processed bulk heterojunction organic solar cells (BHJ-OSCs) and showed a reasonable power conversion efficiency (PCE) of ~3.1% with DVB-T-ID:PC61BM (1:2, w/w) active layer. The outcome of this work clearly reflects that synthesized DVB-T-ID based on 1,3-indanedione units is a promising absorber (donor) material for BHJ-OSCs.

Design of low band gap small molecules with alkyldicyanovinyl acceptor and different donor groups for efficient bulk heterojunction organic solar cells

2015 ◽  
Author(s):  
Yuriy N. Luponosov ◽  
Jie Min ◽  
Alexander N. Solodukhin ◽  
Sergei N. Chvalun ◽  
Tayebeh Ameri ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Low Band Gap

Duplication of Photoinduced Azo Polymer Surface-Relief Gratings through a Soft Lithographic Approach

Langmuir ◽  
2006 ◽  
Vol 22 (17) ◽  
pp. 7405-7410 ◽  
Author(s):  
Bin Liu ◽  
Mingqing Wang ◽  
Yaning He ◽  
Xiaogong Wang
Keyword(s):  
Surface Relief ◽  
Polymer Surface ◽  
Azo Polymer ◽  
Surface Relief Gratings

Reduced graphene oxide diffraction gratings from duplication of photoinduced azo polymer surface-relief-gratings through soft-lithography

2015 ◽  
Vol 3 (24) ◽  
pp. 6224-6231 ◽  
Author(s):  
Zhiyuan Xiong ◽  
Cailian Liao ◽  
Xiaogong Wang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Soft Lithography ◽  
Surface Relief ◽  
Polymer Surface ◽  
Diffraction Gratings ◽  
Azo Polymer ◽  
Reduced Graphene ◽  
Surface Relief Gratings

Diffraction gratings made of reduced graphene oxide were fabricated by duplication of photoinduced azo polymer surface-relief-gratings through soft-lithography.

Efficient and photostable ternary organic solar cells with a narrow band gap non-fullerene acceptor and fullerene additive

2020 ◽  
Vol 8 (14) ◽  
pp. 6682-6691 ◽  
Author(s):  
Jinho Lee ◽  
Jong-Hoon Lee ◽  
Huifeng Yao ◽  
Hyojung Cha ◽  
Soonil Hong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Narrow Band ◽  
Bulk Heterojunction ◽  
System P ◽  
Solid Additive

The simultaneous enhancement of efficiency and photostability in organic solar cells is successfully achieved by introducing a fullerene acceptor as a solid additive into anon-fullerene bulk heterojunction system.

N-Alkylthienopyrroledione versus benzothiadiazole pulling units in push–pull copolymers used for photovoltaic applications: density functional theory study

2016 ◽  
Vol 18 (2) ◽  
pp. 1017-1024 ◽  
Author(s):  
Jamin Ku ◽  
Yeongrok Gim ◽  
Yves Lansac ◽  
Yun Hee Jang
Keyword(s):  
Density Functional Theory ◽  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Density Functional ◽  
Bulk Heterojunction ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Low Band Gap ◽  
Photovoltaic Applications

Low-band-gap push–pull copolymers are promising donor materials for bulk heterojunction organic solar cells.

Computational approach to the study of morphological properties of polymer/fullerene blends in photovoltaics

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Francis M. Gaitho ◽  
Genene T. Mola ◽  
Giuseppe Pellicane
Keyword(s):  
Solar Cells ◽  
Polymer Blends ◽  
Surface Science ◽  
Organic Solar Cells ◽  
Computational Models ◽  
Bulk Heterojunction ◽  
Polymer Surface ◽  
Morphological Properties ◽  
Materials Used ◽  
Light Absorbers

AbstractOrganic solar cells have the ability to transform solar energy efficiently and have a promising energy balance. Producing these cells is economical and makes use of methods of printing using inks built on solvents that are well-matched with a variety of cheap materials like flexible plastic or paper. The primary materials used to manufacture organic solar cells include carbon-based semiconductors, which are good light absorbers and efficient charge generators. In this article, we review previous research of interest based on morphology of polymer blends used in bulk heterojunction (BHJ) solar cells and introduce their basic principles. We further review computational models used in the analysis of surface behavior of polymer blends in BHJ as well as the trends in the field of polymer surface science as applied to BHJ photovoltaics. We also give in brief, the opportunities and challenges in the area of polymer blends on BHJ organic solar cells.

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