scholarly journals Photoconversion Efficiency in Atomically thin TMDC-based heterostructures

2021 ◽  
Author(s):  
Kimiya Setayeshmehr ◽  
Mahdieh Hashemi ◽  
Narges Ansari
Keyword(s):  
Photoconversion Efficiency

scholarly journals How Can the Introduction of Zr4+ Ions into TiO2 Nanomaterial Impact the DSSC Photoconversion Efficiency? A Comprehensive Theoretical and Experimental Consideration

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2955
Author(s):  
Aleksandra Bartkowiak ◽  
Oleksandr Korolevych ◽  
Gian Luca Chiarello ◽  
Malgorzata Makowska-Janusik ◽  
Maciej Zalas
Keyword(s):  
Density Functional ◽  
Sol Gel ◽  
Dye Sensitized Solar Cells ◽  
Positive Influence ◽  
Photoconversion Efficiency ◽  
Doped Tio2 ◽  
Computational Calculations ◽  
Tio2 Nanomaterials ◽  
First Time ◽  
Sensitized Solar Cells

A series of pure and doped TiO2 nanomaterials with different Zr4+ ions content have been synthesized by the simple sol-gel method. Both types of materials (nanopowders and nanofilms scratched off of the working electrode’s surface) have been characterized in detail by XRD, TEM, and Raman techniques. Inserting dopant ions into the TiO2 structure has resulted in inhibition of crystal growth and prevention of phase transformation. The role of Zr4+ ions in this process was explained by performing computer simulations. The three structures such as pure anatase, Zr-doped TiO2, and tetragonal ZrO2 have been investigated using density functional theory extended by Hubbard correction. The computational calculations correlate well with experimental results. Formation of defects and broadening of energy bandgap in defected Zr-doped materials have been confirmed. It turned out that the oxygen vacancies with substituting Zr4+ ions in TiO2 structure have a positive influence on the performance of dye-sensitized solar cells. The overall photoconversion efficiency enhancement up to 8.63% by introducing 3.7% Zr4+ ions into the TiO2 has been confirmed by I-V curves, EIS, and IPCE measurements. Such efficiency of DSSC utilizing the working electrode made by Zr4+ ions substituted into TiO2 material lattice has been for the first time reported.

A study on the Cu-poor and Zn-poor CZTS nanoparticles and its influence on the photoconversion efficiency of non-toxic ZnO buffer layer solar cell

2021 ◽  
Author(s):  
A.G. Kannan ◽  
T.E. Manjulavalli ◽  
M. Thambidurai ◽  
K. Habeeba ◽  
D.V. Ezhilarasi GnanaKumari
Keyword(s):  
Solar Cell ◽  
Buffer Layer ◽  
Photoconversion Efficiency ◽  
Zno Buffer Layer ◽  
Czts Nanoparticles

Dye-sensitized solar cell from a new organic n-type semiconductor/polyaniline composite: insight from impedance spectroscopy

2016 ◽  
Vol 4 (2) ◽  
pp. 272-285 ◽  
Author(s):  
Pousali Chal ◽  
Arnab Shit ◽  
Arun K. Nandi
Keyword(s):  
Solar Cell ◽  
Impedance Spectroscopy ◽  
Dye Sensitized Solar Cell ◽  
Organic N ◽  
Photoconversion Efficiency ◽  
Dye Sensitized ◽  
Type Semiconductor

Nanotubular polyaniline/N,N-di((S)-1-carboxylethyl)-3,4 : 9,10 perylenetetracarboxyldiimide hybrids with characteristics of H-type aggregates and secondary de-doping yield photocurrent with photoconversion efficiency of 2.88%.

scholarly journals Author Correction: III–V-on-silicon solar cells reaching 33% photoconversion efficiency in two-terminal configuration

Nature Energy ◽  
2018 ◽  
Vol 3 (6) ◽  
pp. 529-529 ◽  
Author(s):  
Romain Cariou ◽  
Jan Benick ◽  
Frank Feldmann ◽  
Oliver Höhn ◽  
Hubert Hauser ◽  
...  
Keyword(s):  
Solar Cells ◽  
Silicon Solar Cells ◽  
Photoconversion Efficiency

Analysis of the recombination mechanisms in silicon solar cells with the record 26.6% photoconversion efficiency

2021 ◽  
Author(s):  
Anatoliy Sachenko ◽  
Vitaliy Kostylyov ◽  
Viktor Vlasiuk ◽  
Igor Sokolovskyi ◽  
Mykhaylo Evstigneev
Keyword(s):  
Solar Cells ◽  
Silicon Solar Cells ◽  
Photoconversion Efficiency

Fundamentals and challenges of ultrathin 2D photocatalysts in boosting CO2 photoreduction

2020 ◽  
Vol 49 (18) ◽  
pp. 6592-6604 ◽  
Author(s):  
Xingchen Jiao ◽  
Kai Zheng ◽  
Liang Liang ◽  
Xiaodong Li ◽  
Yongfu Sun ◽  
...  
Keyword(s):  
2D Materials ◽  
Photoconversion Efficiency ◽  
Product Selectivity ◽  
Co2 Photoreduction

Ultrathin 2D materials serve as ideal models for tailoring three crucial parameters that determine CO2 photoconversion efficiency and product selectivity.

Microstructural and photoconversion efficiency enhancement of compact films of lead-free perovskite derivative Rb3Sb2I9

2020 ◽  
Vol 8 (8) ◽  
pp. 4396-4406 ◽  
Author(s):  
Fengzhu Li ◽  
Yan Wang ◽  
Kai Xia ◽  
Robert L. Z. Hoye ◽  
Vincenzo Pecunia
Keyword(s):  
Lead Free ◽  
Photoconversion Efficiency ◽  
Efficiency Enhancement

The microstructural enhancement of Rb3Sb2I9 compact films leads to a photoconversion efficiency boost up to 65.4%.

The Effect of Base Thickness on Photoconversion Efficiency in Textured Silicon-Based Solar Cells

2018 ◽  
Vol 44 (10) ◽  
pp. 873-876 ◽  
Author(s):  
A. V. Sachenko ◽  
V. P. Kostylyov ◽  
A. V. Bobyl ◽  
V. N. Vlasyuk ◽  
I. O. Sokolovskyi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photoconversion Efficiency ◽  
Base Thickness ◽  
Silicon Based

scholarly journals CuInSe2 nanotube arrays for efficient solar energy conversion

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Wipula Priya Rasika Liyanage ◽  
Manashi Nath
Keyword(s):  
Thin Film ◽  
Structural Parameters ◽  
Light Trapping ◽  
Functional Materials ◽  
Design Parameters ◽  
Nanotube Arrays ◽  
Photoconversion Efficiency ◽  
Liquid Junction ◽  
Versatile Technique ◽  
Electrode Coverage

AbstractHighly uniform and vertically aligned p-type CuInSe2 (CISe) nanotube arrays were fabricated through a unique protocol, incorporating confined electrodeposition on lithographically patterned nanoelectrodes. This protocol can be readily adapted to fabricate nanotube arrays of other photoabsorber and functional materials with precisely controllable design parameters. Ternary CISe nanotube arrays were electrodeposited congruently from a single electrolytic bath and the resulting nanotube arrays were studied through powder X-ray diffraction as well as elemental analysis which revealed compositional purity. Detailed photoelectrochemical (PEC) characterizations in a liquid junction cell were also carried out to investigate the photoconversion efficiency. It was observed that the tubular geometry had a strong influence on the photocurrent response and a 29.9% improvement of the photoconversion efficiency was observed with the nanotube array compared to a thin film geometry fabricated by the same process. More interestingly such enhancement in photoconversion efficiency was obtained when the electrode coverage with the nanotube arrays as photoactive material was only a fraction (~10%) of that for the thin film device. Apart from enhancement in photoconversion efficiency, this versatile technique provides ample opportunities to study novel photovoltaic materials and device design architectures where structural parameters play a key role such as resonant light trapping.

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