Mesoporous TIO2 Electrodes for Photovoltaic Applications

1996 ◽  
Vol 431 ◽  
Author(s):  
C. J. Barbé ◽  
M. Graetzel
Keyword(s):  
Solar Cell ◽  
Processing Parameters ◽  
Electrochemical Process ◽  
Tio2 Electrode ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Photovoltaic Efficiency ◽  
Photovoltaic Applications ◽  
New Type ◽  
Film Porosity

AbstractDuring the past five years, we have developed in our laboratory a new type of solar cell based on a photo-electrochemical process. A respectable photovoltaic efficiency (i.e. 10%) is obtained by the use of mesoporous, nanostructured films of anatase particles. We will show how the TiO2 electrode microstructure influences the photovoltaic response of the cell. More specifically, we will focus on how processing parameters such as hydrothermal growth temperature, binder addition and sintering conditions influence the film porosity, pore size distribution, and consequently affect the solar cell efficiency.

Eu (III), Tb (III) activated/ co-activated K2NaAlF6 host array: Simultaneous approach for improving photovoltaic efficiency and tricolour emission

2021 ◽  
Author(s):  
A.R. KADAM ◽  
Ramkumar B. Kamble ◽  
Meenal Joshi ◽  
Abhay Deshmukh ◽  
S. J. Dhoble
Keyword(s):  
Rare Earth ◽  
Solar Cell ◽  
Solid State ◽  
Solid State Lighting ◽  
Efficiency Enhancement ◽  
Solar Cell Efficiency ◽  
Simultaneous Approach ◽  
Cell Efficiency ◽  
Photovoltaic Efficiency

Rare earth activated fluoride phosphors have attention in recent years in the field of solid state lighting and solar cell efficiency enhancement. In the present study, RE (RE = Eu3+,...

Lithium-doping inverts the nanoscale electric field at the grain boundaries in Cu2ZnSn(S,Se)4 and increases photovoltaic efficiency

2015 ◽  
Vol 17 (37) ◽  
pp. 23859-23866 ◽  
Author(s):  
H. Xin ◽  
S. M. Vorpahl ◽  
A. D. Collord ◽  
I. L. Braly ◽  
A. R. Uhl ◽  
...  
Keyword(s):  
Solar Cell ◽  
Electric Field ◽  
Grain Boundaries ◽  
Dmso Solution ◽  
Solution Processed ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Lithium Doping ◽  
Photovoltaic Efficiency

Lithium doping changes the electric field at the GBs and improves DMSO solution processed Cu2ZnSn(S,Se)4 solar cell efficiency to 11.8%.

Experimental and Theoretical Comparable Study of Pure and Zinc Porphyrin Surface Modified ZnO Nanorod Arrays for Hybrid Solar Cell Applications

2020 ◽  
pp. 114-119
Keyword(s):  
Solar Cell ◽  
Electrochemical Impedance ◽  
Hybrid Solar Cell ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Annealing Effects ◽  
Vertically Aligned ◽  
Surface Modified

Experimental and theoretical study Porphyrin-grafted ZnO nanowire arrays were investigated for organic/inorganic hybrid solar cell applications. Two types of porphyrin – Tetra (4-carboxyphenyle) TCPP and meso-Tetraphenylporphine (Zinc-TPP)were used to modify the nanowire surfaces. The vertically aligned nanowires with porphyrin modifications were embedded in graphene-enriched poly (3-hexylthiophene) [G-P3HT] for p-n junction nanowire solar cells. Surface grafting of ZnO nanowires was found to improve the solar cell efficiency. There are different effect for the two types of porphyrin as results of Zn existing. Annealing effects on the solar cell performance were investigated by heating the devices up to 225 °C in air. It was found that the cell performance was significantly degraded after annealing. The degradation was attributed to the polymer structural change at high temperature as evidenced by electrochemical impedance spectroscopy measurements.

Solar cell efficiency tables (Version 58)

2021 ◽  
Author(s):  
Martin A. Green ◽  
Ewan D. Dunlop ◽  
Jochen Hohl‐Ebinger ◽  
Masahiro Yoshita ◽  
Nikos Kopidakis ◽  
...  
Keyword(s):  
Solar Cell ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

scholarly journals CdTe-Based Thin Film Solar Cells: Past, Present and Future

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1684
Author(s):  
Alessandro Romeo ◽  
Elisa Artegiani
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Early Years ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

CdTe is a very robust and chemically stable material and for this reason its related solar cell thin film photovoltaic technology is now the only thin film technology in the first 10 top producers in the world. CdTe has an optimum band gap for the Schockley-Queisser limit and could deliver very high efficiencies as single junction device of more than 32%, with an open circuit voltage of 1 V and a short circuit current density exceeding 30 mA/cm2. CdTe solar cells were introduced at the beginning of the 70s and they have been studied and implemented particularly in the last 30 years. The strong improvement in efficiency in the last 5 years was obtained by a new redesign of the CdTe solar cell device reaching a single solar cell efficiency of 22.1% and a module efficiency of 19%. In this paper we describe the fabrication process following the history of the solar cell as it was developed in the early years up to the latest development and changes. Moreover the paper also presents future possible alternative absorbers and discusses the only apparently controversial environmental impacts of this fantastic technology.

Optimizing solar cell efficiency with neural networks

2021 ◽  
Author(s):  
Garner H. Fleming ◽  
Bennett T. Smith ◽  
Matthew G. Dickman ◽  
J. Shawn Addington ◽  
David L. Livingston
Keyword(s):  
Neural Networks ◽  
Solar Cell ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

RTP process effect on multicrystalline mc-Si wafers and its impact on solar cell efficiency

2020 ◽  
Author(s):  
Yacine Kouhlane ◽  
Djoudi Bouhafs ◽  
Abdelkader Guenda ◽  
Nacer-Eddine Demagh ◽  
Assia Guessoum ◽  
...  
Keyword(s):  
Solar Cell ◽  
Solar Cell Efficiency ◽  
Cell Efficiency
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