scholarly journals Study on Carbazole-like Polymer Solar Cell Materials

2018 ◽  
Vol 1 (1) ◽  
pp. 17
Author(s):  
Zhe Dong ◽  
Hanzhong He ◽  
Guohui Shen
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solar Energy ◽  
Polymer Solar Cells ◽  
Ring Structure ◽  
Polymer Materials ◽  
Intramolecular Electron Transfer ◽  
Wide Range ◽  
Fused Ring ◽  
Potential Applications

<p>With the development of modern industry, the global energy crisis and air pollution problems become increasingly prominent. Solar energy has emerged as an ideal renewable energy by many countries’ attention. Solar cells are the most promising use of solar energy in the kind of concern. Compared with inorganic solar cells, polymer solar cells performance is more excellent and carbazole polymer materials with rigid fused ring structure, intramolecular electron transfer, good transport and easy to introduce a variety of multi-functional groups into the carbazole. The advantages of the ring in the field of solar cell materials show a wide range of potential applications. This paper describes the principles of polymer solar cells and several common donor materials. The precursors of carbazole polymers were designed and synthesized, and their structures were characterized. </p>

Progress in Plasmonic Enhanced Bulk Heterojunction Organic/Polymer Solar Cells

2014 ◽  
Vol 222 ◽  
pp. 117-143 ◽  
Author(s):  
S.K. Tripathi ◽  
Sheenam Sachdeva ◽  
Kriti Sharma ◽  
Jagdish Kaur
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Metallic Nanoparticles ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Light Trapping ◽  
Polymer Materials ◽  
Organic Polymer ◽  
Manufacturing Costs ◽  
Conversion Efficiencies

To reduce the cost of solar electricity, there is an enormous potential of thin-film photovoltaic technologies. An approach for lowering the manufacturing costs of solar cells is to use organic (polymer) materials that can be processed under less demanding conditions. Organic/polymer solar cells have many intrinsic advantages, such as their light weight, flexibility, and low material and manufacturing costs. But reduced thickness comes at the expense of performance. However, thin photoactive layers are widely used, but light-trapping strategies, due to the embedding of plasmonic metallic nanoparticles have been shown to be beneficial for a better optical absorption in polymer solar cells. This article reviews the different plasmonic effects occurring due to the incorporation of metallic nanoparticles in the polymer solar cell. It is shown that a careful choice of size, concentration and location of plasmonic metallic nanoparticles in the device result in an enhancement of the power conversion efficiencies, when compared to standard organic solar cell devices.Contents of Paper

Conventional polymer solar cells with power conversion efficiencies increased to >9% by a combination of methanol treatment and an anionic conjugated polyelectrolyte interface layer

RSC Advances ◽  
2014 ◽  
Vol 4 (92) ◽  
pp. 50988-50992 ◽  
Author(s):  
Tao Yuan ◽  
Dong Yang ◽  
Xiaoguang Zhu ◽  
Lingyu Zhou ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Thin Layer ◽  
Polymer Solar Cell ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Interface Layer ◽  
Conjugated Polyelectrolyte ◽  
Methanol Treatment ◽  
Conversion Efficiencies

The power conversion efficiency of a PTB7:PC71BM polymer solar cell was improved up to 9.1% by a combination of methanol treatment followed by conjugation of a water- or alcohol-soluble polyelectrolyte thin layer.

scholarly journals Physical Properties of Thermoplastic Starch Derived from Natural Resources and Its Blends: A Review

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1396
Author(s):  
Z. N. Diyana ◽  
R. Jumaidin ◽  
Mohd Zulkefli Selamat ◽  
Ihwan Ghazali ◽  
Norliza Julmohammad ◽  
...  
Keyword(s):  
Thermoplastic Starch ◽  
Natural Fibre ◽  
Polymer Materials ◽  
Secondary Pollution ◽  
Wide Range ◽  
Potential Applications ◽  
Long Time ◽  
To Come ◽  
Main Component ◽  
Significant Attention

Thermoplastic starch composites have attracted significant attention due to the rise of environmental pollutions induced by the use of synthetic petroleum-based polymer materials. The degradation of traditional plastics requires an unusually long time, which may lead to high cost and secondary pollution. To solve these difficulties, more petroleum-based plastics should be substituted with sustainable bio-based plastics. Renewable and natural materials that are abundant in nature are potential candidates for a wide range of polymers, which can be used to replace their synthetic counterparts. This paper focuses on some aspects of biopolymers and their classes, providing a description of starch as a main component of biopolymers, composites, and potential applications of thermoplastics starch-based in packaging application. Currently, biopolymer composites blended with other components have exhibited several enhanced qualities. The same behavior is also observed when natural fibre is incorporated with biopolymers. However, it should be noted that the degree of compatibility between starch and other biopolymers extensively varies depending on the specific biopolymer. Although their efficacy is yet to reach the level of their fossil fuel counterparts, biopolymers have made a distinguishing mark, which will continue to inspire the creation of novel substances for many years to come.

scholarly journals Pemanfaatan Motor Listrik Bertenaga Energi Matahari Sebagai Penarik Jaring Pada Kapal Nelayan

2019 ◽  
Vol 2 (3) ◽  
pp. 85-89
Author(s):  
Ali Basrah Pulungan ◽  
Asnil Asnil ◽  
Rahmat Hidayat ◽  
Juli Sardi ◽  
Syaiful Islami
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solar Energy ◽  
Electric Motor ◽  
Weather Conditions ◽  
Cell System ◽  
Fuel Oil ◽  
Motor Speed ◽  
Hand Tools ◽  
Fishing Boat

This article aim to be able to take advantage of an electric motor as a net puller on a fishing boat using solar energy. The use of human labor as a net puller requires a large amount of energy and needs a break to be able to do more withdrawal activities, so the number of withdrawals that can be done is very limited. Pantai Jaya fishing groups as partners are among the 20 active fishing groups in the Pasie Nan Tigo sub-district of Koto Tangah subdistrict of Padang City who experience these problems. The problem of this partner can be given a solution in the form of the use of an electric motor as a towing net on a fishing boat. In order not to cause problems in terms of electricity supply, solar energy can be used by using solar cells, so there is no addition of fuel oil. The implementation method given is direct installation and provision of extension materials on the use of solar cell technology and the introduction of components and hand tools. This activity was carried out for two days which included preparation, installation and training, followed by a group of fishermen. The fishing group received a set of solar cells, electric motors, batteries and other accessories and installed them. Based on tests that have been carried out in sunny weather conditions at 300C, a load of 50 kg with a rated voltage at that time 12.4V, motor speed 2.7m / min, 2.4A. Based on the results of these tests indicate that the solar cell system has worked according to the parameters it should. Therefore, it can be said that this activity has been carried out properly and the solar cell system is functioning properly. Participants hope for these activities to be carried out for the following year, because there are still a number of fishing boat groups that are in dire need.

scholarly journals Conducting Polymers for Optoelectronic Devices and Organic Solar Cells: A Review

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2627 ◽  
Author(s):  
Ary R. Murad ◽  
Ahmed Iraqi ◽  
Shujahadeen B. Aziz ◽  
Sozan N. Abdullah ◽  
Mohamad A. Brza
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conjugated Polymers ◽  
Molecular Orbital ◽  
Organic Solar Cells ◽  
Field Effect Transistors ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Single Layer ◽  
Organic Polymer

In this review paper, we present a comprehensive summary of the different organic solar cell (OSC) families. Pure and doped conjugated polymers are described. The band structure, electronic properties, and charge separation process in conjugated polymers are briefly described. Various techniques for the preparation of conjugated polymers are presented in detail. The applications of conductive polymers for organic light emitting diodes (OLEDs), organic field effect transistors (OFETs), and organic photovoltaics (OPVs) are explained thoroughly. The architecture of organic polymer solar cells including single layer, bilayer planar heterojunction, and bulk heterojunction (BHJ) are described. Moreover, designing conjugated polymers for photovoltaic applications and optimizations of highest occupied molecular orbital (HOMO)–lowest unoccupied molecular orbital (LUMO) energy levels are discussed. Principles of bulk heterojunction polymer solar cells are addressed. Finally, strategies for band gap tuning and characteristics of solar cell are presented. In this article, several processing parameters such as the choice of solvent(s) for spin casting film, thermal and solvent annealing, solvent additive, and blend composition that affect the nano-morphology of the photoactive layer are reviewed.

A Fully Non‐fused Ring Acceptor with Planar Backbone and Near‐IR Absorption for High Performance Polymer Solar Cells

2020 ◽  
Vol 132 (50) ◽  
pp. 22903-22909
Author(s):  
Ya‐Nan Chen ◽  
Miao Li ◽  
Yunzhi Wang ◽  
Jing Wang ◽  
Ming Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Ir Absorption ◽  
Near Ir ◽  
High Performance Polymer ◽  
Fused Ring

The regioisomeric bromination effects of fused-ring electron acceptors: modulation of the optoelectronic property and miscibility endowing the polymer solar cells with 15% efficiency

2020 ◽  
Vol 8 (47) ◽  
pp. 25101-25108
Author(s):  
Jianchao Jia ◽  
Jianhua Jing ◽  
Tao Jia ◽  
Kai Zhang ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Electron Acceptors ◽  
Optoelectronic Property ◽  
Fused Ring

Regioisomerically brominated fused-ring electron acceptors enable a high-performance PSC with 15.03% efficiency by delicately adjusting the optoelectronic property and miscibility.

scholarly journals Improving the all-polymer solar cell performance by adding a narrow bandgap polymer as the second donor

RSC Advances ◽  
2020 ◽  
Vol 10 (63) ◽  
pp. 38344-38350
Author(s):  
Kai Wang ◽  
Sheng Dong ◽  
Xudong Chen ◽  
Ping Zhou ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Polymer Solar Cell ◽  
Polymer Solar Cells ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Narrow Bandgap

Ternary all-polymer solar cells are fabricated using an N2200 acceptor and two donor polymers (PF2 and PM2) with complementary absorption.

The Research on Solar Cells Based on Improving Conversion Efficiency

2015 ◽  
Vol 730 ◽  
pp. 173-177
Author(s):  
Yu Wen Tang
Keyword(s):  
Power Generation ◽  
Solar Cells ◽  
Solar Cell ◽  
Solar Energy ◽  
Conversion Efficiency ◽  
Photovoltaic Effect ◽  
New Technology ◽  
Electrical Energy ◽  
Solar Thermal Energy ◽  
Photovoltaic Power

Solar energy is an inexhaustible and renewable energy without environmental pollution. Solar energy can be used in three kinds of forms: solar thermal energy, photochemical conversion and photovoltaic power generation. Among these, the final form of photovoltaic power generation is electricity which can be transported, applied and stored conveniently. On the basis of photovoltaic effect, solar cell is developed as a new technology to convert light energy into electrical energy using semiconductor. Up to now the two key problems of the development of solar cells are how to improve the conversion efficiency and reduce cost. Therefore, the material and production technology used for solar cells are discussed based on improving conversion efficiency in this article.

scholarly journals Unconventional Solar Energy: Singlet Fission

2019 ◽  
Vol 03 (01) ◽  
pp. 84-91 ◽  
Author(s):  
Josef Michl
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solar Energy ◽  
Excitation Energy ◽  
Triplet State ◽  
Excited Molecule ◽  
Singlet Fission ◽  
Single Junction ◽  
Simple Rules ◽  
Solar Cell Material

Described simply, singlet fission is a process in which a singlet excited molecule transfers about half of its excitation energy to a neighbor molecule, both end up in their triplet state, and the two triplet excitations diffuse apart. The process is of interest for solar cells. Used in conjunction with ordinary solar cell material, a layer of singlet-fission material offers an opportunity to utilize higher energy photons more efficiently. The maximum theoretical efficiency is then close to 1/2 instead of the Shockley-Queisser value of 1/3 that applies to an ordinary single-junction cell. The problem that prevents an immediate production of singlet fission solar cells is the dearth of sufficiently stable efficient materials. The formulation of simple rules for the design of suitable compounds for the purpose is discussed.

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