Adsorption and Photovoltaic Properties of Lac-Color on TiO2 for Dye-Sensitized Solar Cells

2020 ◽  
Vol 20 (3) ◽  
pp. 1989-1992 ◽  
Author(s):  
Tae Young Kim ◽  
Nam Jin Jeon ◽  
Ho Young Jung ◽  
Ji Hyun Kim ◽  
Sung Yong Cho
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Increasing Temperature ◽  
Photovoltaic Characteristics ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

The adsorption and photovoltaic characteristics of Lac-color on TiO2 thin film for dye-sensitized solar cells were investigated. The adsorption isotherms of Lac-color on TiO2 thin film could be represented by the Langmuir equation. The adsorption capacity of Lac-color on TiO2 thin film increased with increasing temperature. The photovoltaic conversion efficiencies of Lac-color increased with increasing amount of dye adsorbed on TiO2 photo electrode. The energy conversion efficiency of Lac-color was 0.12%.

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.

Zinc-Doping in TiO2 Films to Enhance Photovoltaic Performance of Dye-Sensitized Solar Cells

2011 ◽  
Vol 66-68 ◽  
pp. 224-228
Author(s):  
Qiu Ping Liu ◽  
Yang Zhou ◽  
Yan Dong Duan ◽  
Yuan Lin
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Electric Energy ◽  
Energy Conversion Efficiency ◽  
Band Bending ◽  
Dye Sensitized ◽  
Photogenerated Electrons ◽  
Sensitized Solar Cells

Dye-sensitized solar cells based on Zn-doped TiO2 thin film prepared by the hydrothermal method show a photovoltaic efficiency of 7.68%, which is higher than that of the undoped TiO2 thin film (6.16%). The Zn-doped films exhibit an elevated electron Fermi level,which may enhance band bending to lower the density of empty trap states.Because of this Zn-doping,the consequent Dsscs can alleviate the decay of light to electric energy conversion efficiency due to light intensity reduction. Intensity-modulated photocurrent spectroscopic analysis reveals that enhanced transport of photogenerated electrons as a result of the trap density minimization is responsible for the high photovoltaic performance.

Dye-Sensitized Solar Cells Using Natural Dyes Extracted From Plumeria and Celosia Cristata Flowers

2016 ◽  
Vol 13 (1) ◽  
pp. 71 ◽  
Author(s):  
Siti Noraini Abu Bakar ◽  
Huda Abdullah ◽  
Kamisah Mohamad Mahbor ◽  
Shahida Hanum Kamarullah
Keyword(s):  
Solar Cells ◽  
Spin Coating ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Semiconductor Layer ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Conductive Glass ◽  
Celosia Cristata ◽  
Sensitized Solar Cells

In this study, extracted plumeria and celosia cristata flowers have been used as the sensitizer for dye-sensitized solar cells (DSSC). The cells were fabricated using TiO2 as a semiconductor layer deposited on transparent Indium doped tin oxide (ITO) conductive glass using a spin coating technique. The films with dyes were characterized by UV-VIS absorption spectra. The photovoltaic properties of DSSC were studied under an incident irradiation of 100 mW/cm2. The I-V characteristic curves of all fabricated cells were measured and analysed. The energy conversion efficiency (η) of the cells consisting of plumeria extract and celosia cristata extract was 3.73 × 10-6 and 1.18 × 10-7, respectively.

Dye-Sensitized Solar Cells Using Natural Dyes Extracted From Plumeria and Celosia Cristata Flowers

2016 ◽  
Vol 13 (1) ◽  
pp. 71
Author(s):  
Siti Noraini Abu Bakar ◽  
Huda Abdullah ◽  
Kamisah Mohamad Mahbor ◽  
Shahida Hanum Kamarullah
Keyword(s):  
Solar Cells ◽  
Spin Coating ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Semiconductor Layer ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Conductive Glass ◽  
Celosia Cristata ◽  
Sensitized Solar Cells

In this study, extracted plumeria and celosia cristata flowers have been used as the sensitizer for dye-sensitized solar cells (DSSC). The cells were fabricated using TiO2 as a semiconductor layer deposited on transparent Indium doped tin oxide (ITO) conductive glass using a spin coating technique. The films with dyes were characterized by UV-VIS absorption spectra. The photovoltaic properties of DSSC were studied under an incident irradiation of 100 mW/cm2. The I-V characteristic curves of all fabricated cells were measured and analysed. The energy conversion efficiency (η) of the cells consisting of plumeria extract and celosia cristata extract was 3.73 × 10-6 and 1.18 × 10-7, respectively.

Photovoltaic Performance Improvement of Dye-Sensitized Solar Cells (DSSCs) Based on Y-Doped TiO2Thin Films

2014 ◽  
Vol 548-549 ◽  
pp. 264-267
Author(s):  
Qiu Ping Liu
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Electric Energy ◽  
Energy Conversion Efficiency ◽  
Band Bending ◽  
Dye Sensitized ◽  
Photovoltaic Efficiency ◽  
Sensitized Solar Cells

Dye-sensitized solar cells based on Y-doped TiO2thin film prepared by the hydrothermal method show a photovoltaic efficiency of 5.11%, which is higher than that of the undoped TiO2thin film (4.72%). The Y-doped films exhibit an elevated electron Fermi level,which may enhance band bending to lower the density of empty trap states.Because of this Y-doping, the Dsscs can alleviate the decay of light to electric energy conversion efficiency due to light intensity reduction.

scholarly journals Structure and photovoltaic properties of ZnO nanowire for dye-sensitized solar cells

2012 ◽  
Vol 7 (1) ◽  
Author(s):  
Ming-Cheng Kao ◽  
Hone-Zern Chen ◽  
San-Lin Young ◽  
Chen-Cheng Lin ◽  
Chung-Yuan Kung
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Nanowire ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

TiO2 cement for high-performance dye-sensitized solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (87) ◽  
pp. 83802-83807 ◽  
Author(s):  
Yu Hou ◽  
Shuang Yang ◽  
Chunzhong Li ◽  
Huijun Zhao ◽  
Hua Gui Yang
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Dye Sensitized ◽  
Degussa P25 ◽  
Sensitized Solar Cells

An energy conversion efficiency of 8.31% is reached by using a cemented photoanode for dye-sensitized solar cells, attaining a 31.1% improvement over the standard Degussa P25 sample.

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