scholarly journals Fabrication and Characterization of Dye-Sensitized Solar Cells for Greenhouse Application

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Jeum-Jong Kim ◽  
Mangu Kang ◽  
Ock Keum Kwak ◽  
Yong-Jin Yoon ◽  
Kil Sik Min ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

We have developed dye-sensitized solar cells using novel sensitizers with enhanced transmittance of red (625–675 nm) and blue (425–475 nm) wavebands to control the illumination condition in the greenhouse. Novel ruthenium bipyridyl sensitizers with general formulas (Me3PhN)4[Ru(dcbpy)2(NCS)2] (JJ-7) and (Me3BnN)4[Ru(dcbpy)2(NCS)2] (JJ-9) have been synthesized and demonstrated as efficient sensitizers in dye-sensitized solar cells for greenhouse application. Under standard AM 1.5 sunlight, the solar cell ofJJ-7using a liquid-based electrolyte exhibits a short-circuit photocurrent density of 8.49 mA/cm2, an open-circuit voltage of 0.83 V, and a fill factor of 0.71, corresponding to an overall conversion efficiency of 4.96% on 5 μm TiO2film. The transmittance ofJJ-7andJJ-9shows 62.0% and 61.0% at 660 nm and 18.0% and 15.0% at 440 nm for cultivation on 5 μm TiO2film, respectively.

scholarly journals A New Ruthenium Sensitizer Containing Benzo[1,9]quinolizino(acridin-2-yl)vinyl-2,2′-bipyridine Ligand for Effective Nanocrystalline Dye-Sensitized Solar Cells

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Jeum-Jong Kim ◽  
Jeonghun Yoon ◽  
Eun Jung Kim ◽  
Bo Ram Kim ◽  
Yong-Jin Yoon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Fill Factor ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Bipyridine Ligand ◽  
Sensitized Solar Cells

Novel ruthenium bipyridyl sensitizer incorporating conjugated benzo[1,9]quinolizino-(acridin-2-yl)vinyl-2,2′-bipyridine ligand [JJ-12] has been synthesized and demonstrated as efficient sensitizer in dye-sensitized solar cells. A mesoporous titania film stained withJJ-12exhibits a remarkable incident monochromatic photon-to-current conversion efficiency of 82%. Under standard AM 1.5 sunlight, the solar cell using a liquid-based electrolyte consisting of 0.6 M 1,2-dimethyl-3-propylimidazolium iodide (DMPII), 0.05 M I2, 0.1 M LiI, and 0.5 Mtert-butylpyridine in acetonitrile exhibits a short-circuit photocurrent density of 16.47 mA/cm2, an open-circuit voltage of 0.71 V, and a fill factor of 0.71, corresponding to an overall conversion efficiency of 8.34 %.

Thiocyanate Free Ruthenium(II) Complexes for Dye Sensitized Solar Cells (DSSCs)

2018 ◽  
Vol 382 ◽  
pp. 369-373
Author(s):  
Usana Mahanitipong ◽  
Preeyapat Prompan ◽  
Rukkiat Jitchati
Keyword(s):  
Solar Cells ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Visible Region ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Ligand Charge Transfer ◽  
Sensitized Solar Cells ◽  
Open Circuit Photovoltage

The four thiocyanate free ruthenium(II) complexes; [Ru(N^N)2(C^N)]PF6were synthesized and characterized for dye sensitized solar cells (DSSCs). The results showed that the broad absorptions covered the visible region from metal to ligand charge transfer (MLCT) were obtained with the main peaks at 560, 490 and 400 nm. The materials were studied DSSC performance under standard AM 1.5. Compound PP1 showed the power conversion efficiency (PCE) at 3.10%, with a short-circuit photocurrent density (Jsc) of 7.99 mA cm-2, an open-circuit photovoltage (Voc) of 563 mV and a high fill factor (ff) of 0.690.

scholarly journals Piperidine-Substituted Perylene Sensitizer for Dye-Sensitized Solar Cells

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Joe Otsuki ◽  
Yusho Takaguchi ◽  
Daichi Takahashi ◽  
Palanisamy Kalimuthu ◽  
Surya Prakash Singh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Visible Range ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

We have prepared a novel piperidine-donor-substituted perylene sensitizer, PK0002, and studied the photovoltaic performance in dye-sensitized solar cells (DSSCs). Physical properties and photovoltaic performance of this new perylene derivative PK0002 are reported and compared with those of unsubstituted perylene sensitizer, PK0003. PK0002, when anchored to nanocrystalline TiO2 films, achieves very efficient sensitization across the whole visible range extending up to 800 nm. The incident photon-to-current conversion efficiency (IPCE) spectrum was consistent with the absorption spectrum and resulted in a high short-circuit photocurrent density (Jsc) of 8.8 mA cm-2. PK0002 showed higher IPCE values than PK0003 in the 520–800 nm region. Under standard AM 1.5 irradiation (100 mW cm-2) and using an electrolyte consisting of 0.6 M dimethylpropyl-imidazolium iodide, 0.05 M I2, 0.1 M LiI, and 0.5 M tert-butylpyridine in acetonitrile, a solar cell containing sensitizer PK0002 yielded a short-circuit photocurrent density of 7.7 mA cm-2, an open-circuit photovoltage of 0.57 V, and a fill factor of 0.70, corresponding to an overall conversion efficiency of 3.1%.

Pyrazolium-based electrolyte for solid-state dye-sensitized solar cells with high fill factor and open-circuit voltage

2016 ◽  
Vol 4 (35) ◽  
pp. 8235-8244 ◽  
Author(s):  
Tong He ◽  
Ye Feng Wang ◽  
Jing Hui Zeng
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Electron Conversion ◽  
Further Development ◽  
Sensitized Solar Cells

Further development of solid-state dye-sensitized solar cells (ssDSSCs) requires good fill factor as well as high photon to electron conversion efficiency.

scholarly journals Application of Diaminium Iodides in Binary Ionic Liquid Electrolytes for Dye-Sensitized Solar Cells

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Yanzhen Yang ◽  
Renjie Sun ◽  
Chengwu Shi ◽  
Yucheng Wu ◽  
Mei Xia
Keyword(s):  
Ionic Liquid ◽  
Solar Cells ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

N-(2-hydroxyethyl)ethylenediaminium iodides (HEEDAIs) and N-(2-hydroxyethyl)piperazinium iodides (HEPIs) were synthesized, and their thermal properties were analysed. The influence of HEEDAI and HEPI onI3-/I-redox behavior in binary ionic liquid was investigated. The result revealed that HEEDAI can suppress the recombination betweenI3-and the injected electrons in TiO2conduction band and be used as the alternative of 4-tert-butylpyridine in the electrolyte of dye-sensitized solar cells. The electrolyte C, 0.15 mol⋅L−1I2, HEEDAI and MPII with mass ratio of 1 : 4, gave the short-circuit photocurrent density of 9.36 mA⋅cm−2, open-circuit photovoltage of 0.67 V, fill factor of 0.52, and the corresponding photoelectric conversion efficiency of 3.24% at the illumination (air mass 1.5, 100 mW⋅cm−2, active area 0.25 cm2).

Approach to tune short-circuit current and open-circuit voltage of dye-sensitized solar cells: π-linker modification and photoanode selection

RSC Advances ◽  
2014 ◽  
Vol 4 (80) ◽  
pp. 42252-42259 ◽  
Author(s):  
Shengbo Zhu ◽  
Zhongwei An ◽  
Xinbing Chen ◽  
Pei Chen ◽  
Qianfeng Liu
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The modification of the π-linker of cyclic thiourea functionalized dyes has a significant effect on the short-circuit current density and open-circuit voltage of dye-sensitized solar cells.

Natural dyes as sensitizers for dye-sensitized solar cells

2018 ◽  
Vol 11 (03) ◽  
pp. 1850051 ◽  
Author(s):  
Chu Qin ◽  
Dingyu Yang ◽  
Peng Gu ◽  
Xinghua Zhu ◽  
Hui Sun
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Natural Dyes ◽  
Dye Sensitized ◽  
Bonding Performance ◽  
Sensitized Solar Cells

The dye-sensitized solar cells (DSSCs) have been fabricated by using a series of natural dyes extracted from euonymus japonicus and purple plants. The optical characteristics and chemical structure of dyes were investigated by UV-visible spectroscopy and Fourier infrared spectroscopy. It is found that the absorption of sunlight and bonding performance to TiO2 electrode of dyes had significantly effects on the conversion efficiency of solar cells. The results show the cells using blueberry as sensitizer achieved best conversion efficiency of 0.218%, attributed to its strong absorption and excellent bonding to the TiO2 electrode, correspondingly, the short-circuit photocurrent density ([Formula: see text] and open-circuit voltage ([Formula: see text] were 1.3[Formula: see text]mA/cm2 and 430[Formula: see text]mV, respectively.

scholarly journals Dye-sensitized solar cells sensitized with natural dye extracted from Indian Jamun

BIBECHANA ◽  
2014 ◽  
Vol 11 ◽  
pp. 34-39 ◽  
Author(s):  
Indra B Karki ◽  
Jeevan J Nakarmi ◽  
Pradeep K Mandal ◽  
Suman Chatterjee
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Glass Substrate ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Silicon Based ◽  
Sensitized Solar Cells

Dye sensitized solar cell (DSSC) is a device which absorbs light from the sun with a layer of dye molecules and directly converts into electric energy. DSSCs based on ZnO have drawn attention worldwide due to their low cost and easy preparation techniques compared to conventional silicon based photovoltaic devices. Silicon based solar cells were the most popular before the emerging of dye-sensitized solar cells. These silicon based solar cells devices have dominated photovoltaic industry until now. The objectives of this study is to make DSSC using ZnO on ITO coated glass substrate as anode and characterize the DSSC properties such as conversion efficiency, short current density, open circuit voltage, and fill factor. ZnO thin films have been prepared on Indium tin oxide (ITO) glass substrate. These films were used to construct ITO/ZnO/Natural Dye/C/ITO, DSSCs with natural anthocyanin sensitizer extracted from wild Jamun fruits. The cells show open circuit voltage (Voc) of 0.58V, short-circuit current (I sc) of 1.66 mA and 0.58 fill factor (FF) with an conversion efficiency (η) of 1.23%. DOI: http://dx.doi.org/10.3126/bibechana.v11i0.10377 BIBECHANA 11(1) (2014) 34-39

scholarly journals Structure-Property Relationship of New Organic Sensitizers Based on Multicarbazole Derivatives for Dye-Sensitized Solar Cells

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hyo Jeong Jo ◽  
Jung Eun Nam ◽  
Dae-Hwan Kim ◽  
Hyojeong Kim ◽  
Jin-Kyu Kang
Keyword(s):  
Solar Cells ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Organic Dye ◽  
Structure Property ◽  
Dye Sensitized ◽  
Dye Aggregation ◽  
Sensitized Solar Cells

A new multicarbazole based organic dye (C2A1,C2S1A1) with a twisted structure was designed and synthesized, and the corresponding dye (C1A1) without the twisted structure was synthesized for comparison. They were successfully applied in dye-sensitized solar cells (DSSCs). The results showed that the nonplanar structure ofC2A1andC2S1A1can efficiently retard the dye aggregation and charge recombination. The organic dye (C2S1A1) with thiophene units also exhibited a higher molar extinction coefficient and red-shifted absorption, which leads to an improved light harvesting efficiency. TheC2S1A1-sensitized solar cell produced a solar-to-electricity conversion efficiency of 5.1%, high open circuit voltage (Voc) of 0.69 V, and short-circuit photocurrent density of 10.83 mA cm−2under AM 1.5 irradiation (100 mW cm−2) conditions.

scholarly journals Characterization and Performance Evaluation of Dye Sensitized Solar Cell Using Nanostructured TiO2Electrode

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Sule Erten-Ela
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
And Performance ◽  
Sensitized Solar Cells

Metal-free organic sensitizer consisting of donor, electron conducting, and anchoring anhydride groups was engineered at molecular level and synthesized. Dye sensitized solar cells based on conjugated naphthalene dye were fabricated using nanoporous electrode. Photoelectrodes with a 7 μm thick nanoporous layer and a 5 μm thick light-scattering layer were used to fabricate dye sensitized solar cells. DSSCs were fabricated in a FTO/nc-TiO2/organic dye/I-/I3-/Pt/FTO device geometry. Dye sensitized solar cell was characterized by current density-voltage (J-V) measurement. All current-voltage (I-V) measurements were done under 100 mW/cm2light intensity and AM 1.5 conditions. The photovoltaic data revealed a short circuit photocurrent density of 1.86 mA/cm2, an open circuit voltage of 430 mV, and a fill factor of 0.63, corresponding to an overall conversion efficiency of 0.53%.

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