scholarly journals Nanotechnology based Polymerized Solar Cells and Screen-Printing Technique for Power Generation

2020 ◽  
pp. 118-124
Author(s):  
Rashmi N ◽  
Prashanth Kumar H R ◽  
Nithin Salian S
Keyword(s):  
Solar Cells ◽  
Energy Demand ◽  
Screen Printing ◽  
Large Scale ◽  
Bulk Heterojunction ◽  
Well Being ◽  
Human Welfare ◽  
Heterojunction Solar Cells ◽  
Plastic Solar Cells ◽  
Conversion Efficiencies

Energy is central to improved social and economic well-being, and is indispensable to most industrial and commercial wealth generation. It is key for improving human welfare and raising living standards. Industrialization of developing countries like India needs more and more power to meet the demand of life amenities. The global demand for energy is increasing drastically. The previous primary sources of energy like fossil fuel, coal, diesel etc which are decreasing day by day due to energy demand and there is a global warming problem also. Even hydro, thermal, biomass, solar, wind energy are not permanent solutions for the rise in demand. So there is a need for non-conventional energy sources to fill the gap in an improved version of power conversion efficiencies. This is fulfilled by organic polymerized solar cells, which have brought and gained the attention of practical large-scale users' minds to meet the energy required for work life. This paper explains nanotechnology application for energy storing and implementation of polymer technique to the plastic solar cells and also screen-printing technology in the fabrication of organic based bulk heterojunction solar cells.

scholarly journals Synthesis, optoelectronic properties and photovoltaic performances of wide band-gap copolymers based on dibenzosilole and quinoxaline units, rivals to P3HT

2016 ◽  
Vol 7 (25) ◽  
pp. 4160-4175 ◽  
Author(s):  
F. Caffy ◽  
N. Delbosc ◽  
P. Chávez ◽  
P. Lévêque ◽  
J. Faure-Vincent ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Wide Band ◽  
Optoelectronic Properties ◽  
Wide Band Gap ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Conversion Efficiencies

Dibenzosilole and quinoxaline based copolymers were synthesized and tested in bulk-heterojunction solar cells showing power conversion efficiencies up to 5.14%.

scholarly journals Optimization of solution-processed oligothiophene:fullerene based organic solar cells by using solvent additives

2013 ◽  
Vol 4 ◽  
pp. 680-689 ◽  
Author(s):  
Gisela L Schulz ◽  
Marta Urdanpilleta ◽  
Roland Fitzner ◽  
Eduard Brier ◽  
Elena Mena-Osteritz ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Solution Processed ◽  
Heterojunction Solar Cells ◽  
Force Microscopy ◽  
Vacuum Technology ◽  
Atomic Force ◽  
Donor And Acceptor ◽  
Conversion Efficiencies

The optimization of solution-processed organic bulk-heterojunction solar cells with the acceptor-substituted quinquethiophene DCV5T-Bu 4 as donor in conjunction with PC61BM as acceptor is described. Power conversion efficiencies up to 3.0% and external quantum efficiencies up to 40% were obtained through the use of 1-chloronaphthalene as solvent additive in the fabrication of the photovoltaic devices. Furthermore, atomic force microscopy investigations of the photoactive layer gave insight into the distribution of donor and acceptor within the blend. The unique combination of solubility and thermal stability of DCV5T-Bu 4 also allows for fabrication of organic solar cells by vacuum deposition. Thus, we were able to perform a rare comparison of the device characteristics of the solution-processed DCV5T-Bu 4 :PC61BM solar cell with its vacuum-processed DCV5T-Bu 4 :C60 counterpart. Interestingly in this case, the efficiencies of the small-molecule organic solar cells prepared by using solution techniques are approaching those fabricated by using vacuum technology. This result is significant as vacuum-processed devices typically display much better performances in photovoltaic cells.

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.

Flexible, conjugated polymer-fullerene-based bulk-heterojunction solar cells: Basics, encapsulation, and integration

2005 ◽  
Vol 20 (12) ◽  
pp. 3224-3233 ◽  
Author(s):  
G. Dennler ◽  
C. Lungenschmied ◽  
H. Neugebauer ◽  
N.S. Sariciftci ◽  
A. Labouret
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Speed ◽  
Large Scale ◽  
Bulk Heterojunction ◽  
Low Cost ◽  
Gas Barrier ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Roll To Roll

Organic solar cells based on conjugated polymer:fullerene blends show nowadays efficiencies above 4%. After briefly presenting the science of bulk-heterojunction solar cells, we report herein a shelf lifetime study performed by encapsulating the cells in a flexible and transparent gas barrier material. This method allows lifetimes as reported for glass encapsulation. Moreover, we propose a new approach to pattern organic solar cells and design large-scale modules. This technique, based on selective Nd:yttrium aluminum garnet (YAG) laser etching, potentially enables low-cost, high-speed roll-to-roll operation.

Fabrication and characterization of polysilane: PCBM bulk heterojunction solar cells

2013 ◽  
Vol 3 (2) ◽  
Author(s):  
Kazumi Yoshida ◽  
Takeo Oku ◽  
Atsushi Suzuki ◽  
Tsuyoshi Akiyama ◽  
Katsuhisa Tokumitsu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Indium Tin Oxide ◽  
Bulk Heterojunction ◽  
Acid Methyl Ester ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Oxide Electrodes ◽  
Coating Method ◽  
And Performance ◽  
Conversion Efficiencies

AbstractPolysilane/fullerene bulk heterojunction solar cells were fabricated on indium tin oxide electrodes by a spin-coating method, and performance and microstructures of the solar cells were investigated. Decaphenylcyclopentasilane (PDPS), polymethlyphenylsilane (PMPS) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) were used for the solar cells. The conversion efficiencies of PDPS:PCBM solar cells were higher than those of PMPS:PCBM devises. Transmission electron microscopy and X-ray diffraction indicated that PDPS:PCBM layer had a nanocomposite structure.

Locally resolved large scale phase separation in polymer:fullerene blends

2016 ◽  
Vol 4 (4) ◽  
pp. 1244-1250 ◽  
Author(s):  
Christian Kästner ◽  
Marco Seeland ◽  
Daniel A. M. Egbe ◽  
Harald Hoppe
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Light Beam ◽  
Large Scale ◽  
Bulk Heterojunction ◽  
Induced Current ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

Large scale phase separation in polymer:fullerene bulk heterojunction solar cells investigated by electroluminescence imaging (ELI) and light-beam induced current (LBIC) measurements.

scholarly journals Novel indolin-2-one-substituted methanofullerenes bearing long n-alkyl chains: synthesis and application in bulk-heterojunction solar cells

2014 ◽  
Vol 10 ◽  
pp. 1121-1128 ◽  
Author(s):  
Irina P Romanova ◽  
Andrei V Bogdanov ◽  
Inessa A Izdelieva ◽  
Vasily A Trukhanov ◽  
Gulnara R Shaikhutdinova ◽  
...  
Keyword(s):  
Solar Cells ◽  
Bulk Heterojunction ◽  
Weight Ratio ◽  
Acid Methyl Ester ◽  
High Yield ◽  
Solar Cell Performance ◽  
Heterojunction Solar Cells ◽  
Alkyl Chains ◽  
Conversion Efficiencies ◽  
Crystalline Domains

An easy, high-yield and atom-economic procedure of a C60 fullerene modification using a reaction of fullerene C60 with N-alkylisatins in the presence of tris(diethylamino)phosphine to form novel long-chain alkylindolinone-substituted methanofullerenes (AIMs) is described. Optical absorption, electrochemical properties and solubility of AIMs were studied. Poly(3-hexylthiophene-2,5-diyl) (P3HT)/AIMs solar cells were fabricated and the effect of the AIM alkyl chain length and the P3HT:AIM ratio on the solar cell performance was studied. The power conversion efficiencies of about 2% were measured in the P3HT/AIM devices with 1:0.4 P3HT:AIM weight ratio for the AIMs with hexadecyl and dodecyl substituents. From the optical and AFM data, we suggested that the AIMs, in contrast to [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), do not disturb the P3HT crystalline domains. Moreover, the more soluble AIMs do not show a better miscibility with the P3HT crystalline phase.

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%.

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