scholarly journals “Paper Dye-Sensitized Solar Cell” Based on Carbon-Nanotube-Composite Papers

Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 57 ◽  
Author(s):  
Yuya Ogata ◽  
Kodai Iguchi ◽  
Takahide Oya
Keyword(s):  
Solar Cell ◽  
Carbon Nanotube ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Electron Excitation ◽  
Current Collection ◽  
Dye Sensitized ◽  
Carbon Nanotube Composite ◽  
Sensitized Solar Cells ◽  
Composite Paper

We propose a paper solar cell based on carbon nanotube (CNT)-composite papers. To fabricate this cell, we use dye-sensitized solar cells (DSCs) for generating power through the redox reaction of dyes in conjunction with CNT-composite papers, which are composite materials containing CNTs and pulp (raw paper material) that can be fabricated easily by using a method based on the Japanese washi papermaking technique. The demand for CNT applications is expected to increase due to their high conductivity and metallic or semiconducting characteristics. This CNT-composite paper can also have metallic or semiconducting characteristics based on the contained CNTs in the composite paper. We previously fabricated a DSC that generates electricity by using CNT-composite papers stacked in a typical DSC structure. However, the conversion efficiency of this DSC was just 0.188%, which is not practical. To overcome this low power generation issue, we tried improving the DSC structure by applying electrodes to the CNT-composite papers in grid patterns for efficient current collection and applying an optimally mixed dye for efficient electron excitation. Results showed that the conversion efficiency improved to 0.58%. Moreover, we demonstrated that using a mixed dye can improve the conversion efficiency of the paper DSC. We expect these types of CNT-composite papers to be used as material for new DSCs.

Donor-π-acceptor, triazine-linked porphyrin dyads as sensitizers for dye-sensitized solar cells

2015 ◽  
Vol 19 (01-03) ◽  
pp. 175-191 ◽  
Author(s):  
Ganesh D. Sharma ◽  
Galateia E. Zervaki ◽  
Kalliopi Ladomenou ◽  
Emmanuel N. Koukaras ◽  
Panagiotis P. Angaridis ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Carboxylic Acid ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Orbital Energy ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Two porphyrin dyads with the donor-π-acceptor molecular architecture, namely ( ZnP )-[triazine-gly]-( H 2 PCOOH ) and ( ZnP )-[triazine-Npip]-( H 2 PCOOH ), which consist of a zinc-metalated porphyrin unit and a free-base porphyrin unit covalently linked at their peripheries to a central triazine group, substituted either by a glycine in the former or a N-piperidine group in the latter, have been synthesized via consecutive amination substitution reactions of cyanuric chloride. The UV-vis absorption spectra and cyclic-voltammetry measurements of the two dyads, as well as theoretical calculations based on Density Functional Theory, suggest that they have suitable frontier orbital energy levels for use as sensitizers in dye-sensitized solar cells. Dye-sensitized solar cells based on ( ZnP )-[triazine-gly]-( H 2 PCOOH ) and ( ZnP )-[triazine-Npip]-( H 2 PCOOH ) have been fabricated, and they were found to exhibit power conversion efficiency values of 5.44 and 4.15%, respectively. Photovoltaic measurements (J–V curves) and incident photon to current conversion efficiency spectra of the two solar cells suggest that the higher power conversion efficiency value of the former solar cell is a result of its enhanced short circuit current, open circuit voltage, and fill factor values, as well as higher dye loading. This is ascribed to the existence of two carboxylic acid anchoring groups in ( ZnP )-[triazine-gly]-( H 2 PCOOH ), compared to one carboxylic acid group in ( ZnP )-[triazine-Npip]-( H 2 PCOOH ), which leads to a more effective binding onto the TiO 2 photoanode. Electrochemical impedance spectra show evidence that the ( ZnP )-[triazine-gly]-( H 2 PCOOH ) based solar cell exhibits a longer electron lifetime and more effective suppression of charge recombination reactions between the injected electrons and electrolyte.

A TiO2Nanofiber-Carbon Nanotube-Composite Photoanode for Improved Efficiency in Dye-Sensitized Solar Cells

ChemSusChem ◽  
2015 ◽  
Vol 8 (20) ◽  
pp. 3396-3400 ◽  
Author(s):  
Thomas J. Macdonald ◽  
Daniel D. Tune ◽  
Melissa R. Dewi ◽  
Christopher T. Gibson ◽  
Joseph G. Shapter ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carbon Nanotube ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Carbon Nanotube Composite ◽  
Sensitized Solar Cells

scholarly journals Cover Picture: A TiO2Nanofiber-Carbon Nanotube-Composite Photoanode for Improved Efficiency in Dye-Sensitized Solar Cells (ChemSusChem 20/2015)

ChemSusChem ◽  
2015 ◽  
Vol 8 (20) ◽  
pp. 3349-3349 ◽  
Author(s):  
Thomas J. Macdonald ◽  
Daniel D. Tune ◽  
Melissa R. Dewi ◽  
Christopher T. Gibson ◽  
Joseph G. Shapter ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carbon Nanotube ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Carbon Nanotube Composite ◽  
Sensitized Solar Cells

Effect of the Addition of Ti3+ into TiO2 Film on the Performance of Dye Sensitized Solar Cells

2007 ◽  
Vol 336-338 ◽  
pp. 2337-2339
Author(s):  
Jun Hui Xiang ◽  
Zhi Zhang ◽  
Fu Shi Zhang ◽  
Shoji Kaneko ◽  
Masayuki Okuya ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Tio2 Particle ◽  
Dye Molecules ◽  
Dye Sensitized ◽  
First Time ◽  
Sensitized Solar Cells

For the first time, it was found that low-valence additives could be employed to improve the conversion efficiency of dye sensitized solar cell. It was experimentally discovered that by forming nonstoichiometric compound, Ti3+ was located in the lattice of TiO2 film, generating surplus electrons within the film and affecting the morphology of TiO2 particle. The improvement of the conversion efficiency of the solar cell was mainly due to the increase of short circuit current along with the content of Ti3+. The surface of the TiO2 particle became more coarsely after TiCl3 added and the absorbed dye molecules was increased. It was another reason of the improvement of conversion efficiency.

Fabrication of Multiwalled Carbon Nanotube-Titania Nanocomposite for Dye-Sensitized Solar Cell

2011 ◽  
Vol 410 ◽  
pp. 168-171 ◽  
Author(s):  
Wei Jhih Lin ◽  
Chun Tsung Hsu ◽  
Yan Chou Lai ◽  
Wei Che Wu ◽  
Tsung Yi Hsieh ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Multiwalled Carbon Nanotube ◽  
Dye Sensitized Solar Cell ◽  
Multiwalled Carbon ◽  
Dye Sensitized ◽  
Photovoltaic Conversion ◽  
Photovoltaic Conversion Efficiency ◽  
Sensitized Solar Cells

This work highlights the fabrication of multiwalled carbon nanotube (MWCNT)-TiO2 nanocomposite for use in dye-sensitized solar cells (DSSCs) to improve the photovoltaic conversion efficiency. Morphology of the MWCNT-TiO2 film was investigated by field emission scanning electron microscopy (FESEM). FESEM images demonstrated that MWCNTs were dispersed homogeneously in TiO2 matrix. MWCNT acted as an efficient conduit for electron transfer that can enhance the photovoltaic conversion efficiency of the DSSC. The proposed MWCNT-TiO2 nanocomposite photoelectrode might be beneficial to develop high photovoltaic conversion efficiency of DSSCs.

Study on Determination of I-V Curve of Dye-Sensitized Solar Cell

2011 ◽  
Vol 685 ◽  
pp. 13-19
Author(s):  
Han Min Tian ◽  
Tao Yu ◽  
Zhi Gang Zou
Keyword(s):  
Solar Cells ◽  
Steady State ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Applied Bias ◽  
Dye Sensitized ◽  
Capacitance Characteristics ◽  
Sensitized Solar Cells

Many studies reported that dye-sensitized solar cells have more significant capacitance characteristics than the silicon solar cell. In this study, it was found the capacitance characteristics of dye-sensitized solar cell changes with the imposed bias voltage. The bias voltage is indispensable in the standard measurement for the conversion efficiency of dye-sensitized solar cell. The influence of changed capacitance during the measurement on the conversion efficiency of dye-sensitized solar cells was investigated. The analysis on the EIS spectra and equivalent circuit shows that the capacitance of dye-sensitized solar cells is small and the deviation cell I-V characteristics from the steady-state value is minor when the applied bias is small; while under a condition with a large applied bias, the capacitance characteristics of dye-sensitized solar cell grew rapidly and the I-V characteristics deviated from the steady-state value significantly increased. This phenomenon is helpful for the accurate measurement of the quantum conversion efficiency and photoelectric conversion efficiency of dye-sensitized solar cells.

A TiO2Nanofiber-Carbon Nanotube-Composite Photoanode for Improved Efficiency in Dye-Sensitized Solar Cells

ChemSusChem ◽  
2015 ◽  
Vol 8 (20) ◽  
pp. 3351-3351 ◽  
Author(s):  
Thomas J. Macdonald ◽  
Daniel D. Tune ◽  
Melissa R. Dewi ◽  
Christopher T. Gibson ◽  
Joseph G. Shapter ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carbon Nanotube ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Carbon Nanotube Composite ◽  
Sensitized Solar Cells

A fiber-shaped solar cell showing a record power conversion efficiency of 10%

2018 ◽  
Vol 6 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Xuemei Fu ◽  
Hao Sun ◽  
Songlin Xie ◽  
Jing Zhang ◽  
Zhiyong Pan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Hydrophobic Core ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Hydrophobic core/hydrophilic sheath fibers have been designed for fiber-shaped dye-sensitized solar cells showing a record power conversion efficiency of 10%.

Highly efficient light harvesting ruthenium sensitizers for dye-sensitized solar cells featuring triphenylamine donor antennas

2014 ◽  
Vol 2 (14) ◽  
pp. 4945-4953 ◽  
Author(s):  
Kun Cao ◽  
Jianfeng Lu ◽  
Jin Cui ◽  
Yan Shen ◽  
Wei Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Light Harvesting ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Ruthenium complexes featuring triphenylamine donor antennas boost dye-sensitized solar cell devices' power conversion efficiency close to 11%.

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