Investigation of photovoltaic properties of nanostructure indoline dye-sensitised solar cells using changes in assembling materials

2017 ◽  
Vol 46 (5) ◽  
pp. 393-398 ◽  
Author(s):  
Mozhgan Hosseinnezhad ◽  
Kamaladin Gharanjig
Keyword(s):  
Solar Cells ◽  
Organic Dyes ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Ammonium Iodide ◽  
Photovoltaic Properties ◽  
Content Type ◽  
Tetrabutyl Ammonium Iodide ◽  
Tetrabutyl Ammonium ◽  
First Time

Purpose The purpose of this paper is to study assembling parameters in dye-sensitised solar cells (DSSCs) performance. For this end, 3a,7a-dihydroxy-5ß-cholanic acid (cheno) are selected as anti-aggregation agent and two solutions, namely, tetrabutyl ammonium iodide and (PMII)IL used as electrolyte. Design/methodology/approach A series of organic dyes were selected using N-substituents carbazole as electron donor group and acrylic acid and cyanoacrylic acid as electron acceptor groups. Absorption properties of purified dyes were studied in solution and on photoelectrode substrate. DSSCs were prepared in the presence of anti-aggregation agent and different electrolyte to determine the photovoltaic performance of each dyes. Findings The results showed that all organic dyes form J-aggregation on the photoanode substrate in the absence of anti-aggregation agent and the amounts of aggregation were reduced in the presence of anti-aggregation agent. DSSCs were fabricated in the presence of anti-aggregation agent. The photovoltaic properties were improved using tetrabutyl ammonium iodide as electrolyte. The maximum power conversion efficiency was achieved for D12 in the presence of cheno and tetrabutyl ammonium iodide as anti-aggregation agent and electrolyte, respectively. Social implications Organic dye attracts more and more attention due to low cost, facile route synthesis and less hazardous. Originality/value The effect of anti-aggregation agent and electrolyte on DSSCs performance was investigated for the first time.

A series of new organic sensitisers for dye-sensitised solar cells

2016 ◽  
Vol 45 (4) ◽  
pp. 234-239 ◽  
Author(s):  
Mozhgan Hosseinnezhad
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Organic Dyes ◽  
Low Cost ◽  
Analytical Techniques ◽  
Content Type ◽  
Acceptor Group ◽  
Maximum Conversion Efficiency ◽  
First Time

Purpose Dye-sensitised solar cells (DSSCs) have attracted a great deal of interest. Dye molecules are key materials in DSSCs that produce electrons. This study reports on synthesis of the organic dyes and investigation their performance in DSSCs. Design/methodology/approach A series of new organic dyes were prepared using double rhodanine as the fundamental electron-acceptor group and aldehydes with varying substituents as the electron-donor groups. These dyes were first purified and then characterised by analytical techniques. DSSCs were fabricated to determine the photovoltaic behaviour and conversion efficiency of each individual dye. Findings Results demonstrated that all the dyes form j-type aggregates on the nano TiO2. All dyes in DSSC structure show suitable power conversion efficiency, and Dye 5 due to presence of OCH3 and OiPr presents maximum conversion efficiency. Practical implications In the search for high-efficiency organic dyes for DSSCs, development of new materials offering optimised photochemical stabilities as well as suitable optical and electrical properties is importance. Social implications Organic dyes as photosensitisers are interesting due to low cost, relatively facile dye synthesis and capability of easy molecular tailoring. Originality/value A series of new organic metal-free dyes were prepared as sensitisers for DSSCs for the first time.

Effect of substituents moiety in organic sensitiser based on carbazole on the performance of nanostructure dye-sensitised solar cells

2015 ◽  
Vol 44 (5) ◽  
pp. 292-299 ◽  
Author(s):  
Kamaladin Gharanjig ◽  
Mozhgan Hosseinnezhad
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
High Performance ◽  
Organic Dyes ◽  
Low Cost ◽  
Analytical Techniques ◽  
Oxidation Potential ◽  
Photovoltaic Properties ◽  
Content Type ◽  
Cyanoacrylic Acid

Purpose – The purpose of this paper is to prepare new organic dyes and use them as sensitisers in dye-sensitised solar cells. These dyes were synthesised and purified and then characterised by analytical techniques. Spectrophotometric evaluations of the prepared dyes were carried out in solution and on a nano-anatase TiO2 substrate to assess the possible changes in the status of the dyes in different environments. Finally, the photovoltaic properties were investigated in dye-sensitised solar cells. Design/methodology/approach – So as to synthesise dyes, N-substituents carbazole were utilised as the fundamental electron donor group and cyanoacrylic acid or acrylic acid as electron acceptor anchoring groups. Purified dyes were dissolved in solution and coated on TiO2 substrate. Finally, dye-sensitised solar cells were fabricated to determine the photovoltaic behaviour and conversion efficiency of each individual dye. Findings – The results showed that the dyes form j-type aggregates on the nano TiO2. The oxidation potential of synthesised carbazole dyes is > 0.2 V vs Fc/Fc+; hence, their high performance in dye-sensitised solar cells. Dye 3 exhibited 2.11 per cent of conversion efficiency in comparison to 2.89 per cent for the identical cells with Dye 9 containing cyanoacrylic acid which acted as the best acceptor group. Practical implications – The novel dyes look as promising as highly light fast, efficient dyes for dye-sensitised solar cells. Social implications – Organic dye provides low cost and less hazardous materials for dye-sensitised solar cells. Originality/value – A series of new organic dyes were synthesised as sensitisers for dye-sensitised solar cells for the first time.

scholarly journals Controlled Assembly of Nanorod TiO2 Crystals via a Sintering Process: Photoanode Properties in Dye-Sensitized Solar Cells

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Saeid Vafaei ◽  
Kazuhiro Manseki ◽  
Soki Horita ◽  
Masaki Matsui ◽  
Takashi Sugiura
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Semiconductor Nanocrystals ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Sintering Process ◽  
Dye Sensitized ◽  
First Time ◽  
Sensitized Solar Cells ◽  
Control Crystallization

We present for the first time a synthetic method of obtaining 1D TiO2 nanorods with sintering methods using bundle-shaped 3D rutile TiO2 particles (3D BR-TiO2) with the dimensions of around 100 nm. The purpose of this research is (i) to control crystallization of the mixture of two kinds of TiO2 semiconductor nanocrystals, that is, 3D BR-TiO2 and spherical anatase TiO2 (SA-TiO2) on FTO substrate via sintering process and (ii) to establish a new method to create photoanodes in dye-sensitized solar cells (DSSCs). In addition, we focus on the preparation of low-cost and environmentally friendly titania electrode by adopting the “water-based” nanofluids. Our results provide useful guidance on how to improve the photovoltaic performance by reshaping the numerous 3D TiO2 particles to 1D TiO2-based electrodes with sintering technique.

Heterocyclic-Functionalized Organic Dyes for Dye-Sensitized Solar Cells: Tuning Solar Cell Performance by Structural Modification

2012 ◽  
Vol 65 (9) ◽  
pp. 1203 ◽  
Author(s):  
Qianqian Li ◽  
Zhongxing Jiang ◽  
Jingui Qin ◽  
Zhen Li
Keyword(s):  
Solar Cells ◽  
Molecular Design ◽  
Organic Dyes ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
The Relationship ◽  
Sensitized Solar Cells

Due to their high conversion efficiency and low cost of production, dye-sensitized solar cells based on organic dyes have attracted considerable attention. By utilizing various heterocycles as construction blocks for organic dyes, the performance of solar cells was optimized to exhibit good light-harvesting features and suppress interfacial recombinations. The aim of this review is to highlight recent progress in the molecular design of heterocyclic-functionalized organic dyes for efficient dye-sensitized solar cells, and special attention has been paid to the relationship between chemical structure and the photovoltaic performance of dye-sensitized solar cells based on these dyes.

Investigation of photovoltaic properties of dye-sensitized solar cells based on azo dyes contain various anchoring groups

2019 ◽  
Vol 48 (6) ◽  
pp. 481-486 ◽  
Author(s):  
Mozhgan Hosseinnezhad ◽  
Hanieh Shaki
Keyword(s):  
Solar Cells ◽  
Substituent Effect ◽  
Organic Dyes ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Content Type ◽  
Dye Sensitized ◽  
Anchoring Groups ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

Purpose The purpose of this paper is to study the substituent effect in dye-sensitized solar cells’ (DSSCs) performance. For this end, three new metal organic dyes with DPA structure were synthesized. For investigation of the substituent effect, two different anchoring groups, namely, 1,3-dioxo-1Hbenz[de]isoquinolin-2(3H)-yl)benzenesulfonamides and 1,8-naphthalimide, were used. Design/methodology/approach Three organic dyes based on azo were selected, which contain various electron donor groups. Absorption properties of purified dyes were studied in solution and on photoelectrode (TiO2 and ZnO) substrate. DSSCs were prepared to determine the photovoltaic performance of each photosensitizer. Findings The results showed that all organic dyes form J-aggregation on the photoanode substrate. Cyclic voltammetry results for all organic dyes ensured an energetically permissible and thermodynamically favorable charge transfer throughout the continuous cycle of photo-electric conversion. The results illustrate conversion efficiencies of cells based on solution Dyes 1, 2 and 3 and TiO2 as 3.44, 4.71 and 4.82 per cent, respectively. The conversion efficiencies of cells based on solution Dye 1, 2 and 3 and ZnO are 3.21, 4.09 and 4.14 per cent, respectively. Practical implications In this study, the development of effect of assembling materials, offering improved photovoltaic properties. Social implications Organic dye attracts more and more attention because of its low-cost, facile route synthesis and less-hazardous properties. Originality/value To the best of the authors’ knowledge, the effect of anchoring agent and nanostructure on DSSCs performance was investigated for the first time.

Research Progress on Improving the Photovoltaic Performance of Polymer Solar Cells

2011 ◽  
Vol 134 (1) ◽  
Author(s):  
Yanmin Wang
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Polymer Solar Cells ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Buffer Layers ◽  
Polymer Materials ◽  
Research Progress ◽  
Future Research ◽  
Photovoltaic Properties

Although polymer materials possess the advantages such as low cost and easy fabrication of flexible and large-scale film for the application in photovoltaic devices, the performance of polymer-based solar cells, especially energy conversion efficiency is inferior to their inorganic counterpart due to the shorter charge diffusion length caused by the comparatively lower electric field between the electrodes. This paper reviewed the strategies to improve their photovoltaic properties mainly concentrated on modifying the polymer materials and ameliorating the device configuration. First, polythiophene (PT), poly(phenylene vinylene) (PPV), polyfullerene, and other novel polymer materials were introduced and the effective ways to modify their derivatives with more advantages were described in detail, for instance, copolymerization, incorporating additives and dyes, etc. Furthermore, the content of ameliorating the device configuration encompassed on inverted architecture, tandem structure, the introduction of buffer layers, thermal annealing, and the integration of optimized conditions. Finally, the effects of the improvement methods were concisely summarized, and the perspectives of the future research were put forth.

Tetraphenylethylene-bridged double-branched sensitizers featuring hetero-donors for dye-sensitized solar cells

2020 ◽  
Vol 44 (30) ◽  
pp. 12909-12915
Author(s):  
Yi-Qiao Yan ◽  
Yi-Zhou Zhu ◽  
Pan-Pan Dai ◽  
Jun Han ◽  
Mao Yan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Dyes ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Effects of hetero-donors on the photovoltaic performance of tetraphenylethylene-based organic dyes were systematically investigated.

scholarly journals Incorporation of Kojic Acid-Azo Dyes on TiO2 Thin Films for Dye Sensitized Solar Cells Applications

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Carolynne Zie Wei Sie ◽  
Zainab Ngaini
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Azo Dyes ◽  
Kojic Acid ◽  
Organic Dyes ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Thin Films ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Sensitization of heavy metal free organic dyes onto TiO2 thin films has gained much attention in dye sensitized solar cells (DSSCs). A series of new kojic acid based organic dyes KA1–4 were synthesized via nucleophilic substitution of azobenzene bearing different vinyl chains A1–4 with kojyl chloride 4. Azo dyes KA1–4 were characterized for photophysical properties employing absorption spectrometry and photovoltaic characteristic in TiO2 thin film. The presence of vinyl chain in A1–4 improved the photovoltaic performance from 0.20 to 0.60%. The introduction of kojic acid obtained from sago waste further increases the efficiency to 0.82–1.54%. Based on photovoltaic performance, KA4 achieved the highest solar to electrical energy conversion efficiency (η = 1.54%) in the series.

Antimony trifluoride incorporated SnO2 for high-efficiency planar perovskite solar cells

2021 ◽  
Author(s):  
Li Zhang ◽  
Hui Li ◽  
Jing Zhuang ◽  
Yigang Luan ◽  
Sixuan Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Tin Dioxide ◽  
High Efficiency ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Antimony Trifluoride ◽  
First Time

The low-cost material antimony trifluoride (SbF3) was doped into the commonly used tin dioxide (SnO2) for the first time, and the SbF3-doped SnO2 as an electron transport layer (ETL) was...

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