scholarly journals One-reactor plasma assisted fabrication of ZnO@TiO 2 multishell nanotubes: assessing the impact of a full coverage on the photovoltaic performance

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Alejandro Nicolas Filippin ◽  
Manuel Macias-Montero ◽  
Zineb Saghi ◽  
Jesús Idígoras ◽  
Pierre Burdet ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Full Coverage ◽  
The Impact

Investigating the impact of thermal annealing on the photovoltaic performance of chemical bath deposited SnO2/p-Si heterojunction solar cells

2019 ◽  
Vol 26 (4) ◽  
pp. 1351-1358 ◽  
Author(s):  
Anannya Bhattacharya ◽  
Jenifar Sultana ◽  
Subhrajit Sikdar ◽  
Rajib Saha ◽  
Sanatan Chattopadhyay
Keyword(s):  
Solar Cells ◽  
Thermal Annealing ◽  
Photovoltaic Performance ◽  
Heterojunction Solar Cells ◽  
The Impact

scholarly journals The Impact of Acceptor-Acceptor Homocoupling on the Optoelectronic Properties and Photovoltaic Performance of PDTSQxff Low Bandgap Polymers

2018 ◽  
Vol 39 (14) ◽  
pp. 1800086 ◽  
Author(s):  
Geert Pirotte ◽  
Jurgen Kesters ◽  
Tom Cardeynaels ◽  
Pieter Verstappen ◽  
Jan D'Haen ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Optoelectronic Properties ◽  
Low Bandgap ◽  
The Impact

Understanding the impact of side-chains on photovoltaic performance in efficient all-polymer solar cells

2019 ◽  
Vol 7 (40) ◽  
pp. 12641-12649 ◽  
Author(s):  
Bin Li ◽  
Qilin Zhang ◽  
Gaole Dai ◽  
Hua Fan ◽  
Xin Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conjugated Polymer ◽  
Polymer Solar Cell ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Cell Performance ◽  
Side Chain ◽  
Solar Cell Performance ◽  
The Impact

We performed side-chain fluorination and alkylthio substituent in a template conjugated polymer and further investigate their impact on polymer–polymer solar cell performance.

scholarly journals Structures, Phase Transitions and Tricritical Behavior of the Hybrid Perovskite Methyl Ammonium Lead Iodide

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
P. S. Whitfield ◽  
N. Herron ◽  
W. E. Guise ◽  
K. Page ◽  
Y. Q. Cheng ◽  
...  
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Structural Phase ◽  
Photovoltaic Performance ◽  
Orthorhombic Phase ◽  
Structural Phase Transitions ◽  
Lead Iodide ◽  
First Order ◽  
Hybrid Perovskite ◽  
The Impact

Abstract We have examined the crystal structures and structural phase transitions of the deuterated, partially deuterated and hydrogenous organic-inorganic hybrid perovskite methyl ammonium lead iodide (MAPbI3) using time-of-flight neutron and synchrotron X-ray powder diffraction. Near 330 K the high temperature cubic phases transformed to a body-centered tetragonal phase. The variation of the order parameter Q for this transition scaled with temperature T as Q ∼ (Tc−T)β, where Tc is the critical temperature and the exponent β was close to ¼, as predicted for a tricritical phase transition. However, we also observed coexistence of the cubic and tetragonal phases over a range of temperature in all cases, demonstrating that the phase transition was in fact first-order, although still very close to tricritical. Upon cooling further, all the tetragonal phases transformed into a low temperature orthorhombic phase around 160 K, again via a first-order phase transition. Based upon these results, we discuss the impact of the structural phase transitions upon photovoltaic performance of MAPbI3 based solar cells.

Spectroscopic study on the impact of methylammonium iodide loading time on the electronic properties in perovskite thin films

2016 ◽  
Vol 4 (2) ◽  
pp. 561-567 ◽  
Author(s):  
Yuanhang Cheng ◽  
Ho-Wa Li ◽  
Jinfeng Zhang ◽  
Qing-Dan Yang ◽  
Taili Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Composition ◽  
Spectroscopic Study ◽  
Electronic Properties ◽  
Film Formation ◽  
Photovoltaic Performance ◽  
The Impact

The loading time of MAI during perovskite film formation determines the chemical composition, hysteresis, and photovoltaic performance.

The impact of heteroatom substitution on cross-conjugation and its effect on the photovoltaic performance of DSSCs – a computational investigation of linear vs. cross-conjugated anchoring units

2018 ◽  
Vol 20 (35) ◽  
pp. 22660-22673 ◽  
Author(s):  
Mahalingavelar Paramasivam ◽  
Ramesh Kumar Chitumalla ◽  
Joonkyung Jang ◽  
Ji Ho Youk
Keyword(s):  
Photophysical Properties ◽  
Energy Levels ◽  
Photovoltaic Performance ◽  
Computational Investigation ◽  
Conjugated Systems ◽  
Reverse Trend ◽  
Heteroatom Substitution ◽  
The Impact

The heteroatom substitution on cross conjugation takes a reverse trend to the linear π-conjugated systems by means of energy levels and photophysical properties. The resultant changes directly affecting the photovoltaic performance of DSSCs.

Ru(II) porphyrins as sensitizers for DSSCs: Axial vs. peripheral carboxylate anchoring group

2019 ◽  
Vol 23 (07n08) ◽  
pp. 870-880
Author(s):  
Kalliopi Ladomenou ◽  
Vasilis Nikolaou ◽  
Georgios Charalambidis ◽  
Ganesh D. Sharma ◽  
Athanassios G. Coutsolelos
Keyword(s):  
Electrochemical Impedance ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Electrochemical Impedance Spectra ◽  
Anchoring Group ◽  
The Difference ◽  
Dye Regeneration ◽  
The Impact ◽  
Recombination Reactions ◽  
Sensitized Solar Cells

In this study, two porphyrin chromophores metallated with ruthenium, RuTBP and RuTBPPy, were prepared and studied as sensitizers in dye-sensitized solar cells (DSSCs). The difference between the two dyes is the position (axial vs. peripheral) of the carboxylic anchoring group. This work examines the impact of this variation towards the optical, electrochemical and photovoltaic performance of DSSCs. The thorough photophysical and photovoltaic measurements indicated that the peripherally substituted sensitizer (RuTBP) presented higher photovoltaic performance compared to RuTBPPy. More specifically, DSSCs sensitized with RuTBP and RuTBPPy displayed an overall power conversion efficiency (PCE) of 5.12% and 4.08%, respectively. The higher PCE value of the DSSC sensitized with RuTBP is mainly attributed to the enhancement of [Formula: see text] and FF values. These factors were enhanced due to the efficient dye regeneration process, the suppression of back-charge recombination reactions and the longer electron lifetimes as evidenced from the electrochemical impedance spectra.

The impact of precursor water content on solution-processed organometal halide perovskite films and solar cells

2015 ◽  
Vol 3 (37) ◽  
pp. 19123-19128 ◽  
Author(s):  
Bert Conings ◽  
Aslihan Babayigit ◽  
Tim Vangerven ◽  
Jan D'Haen ◽  
Jean Manca ◽  
...  
Keyword(s):  
Solar Cells ◽  
Water Content ◽  
Large Scale ◽  
Photovoltaic Performance ◽  
Scale Production ◽  
Large Scale Production ◽  
Organometal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
The Impact

In this paper, the impact of the water content (up to 10 vol%) in DMF-based precursors on organometal halide perovskites is investigated. The photovoltaic performance is found not to be affected, thus relaxing the conditions for large-scale production of this upcoming photovoltaic technology.

scholarly journals Effect of π-Conjugated Spacer in N-Alkylphenoxazine-Based Sensitizers Containing Double Anchors for Dye-Sensitized Solar Cells

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1304
Author(s):  
Yung-Sheng Yen ◽  
Velu Indumathi
Keyword(s):  
Solar Cells ◽  
Electrochemical Impedance ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Co Adsorption ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
The Impact ◽  
Sensitized Solar Cells

A series of novel double-anchoring dyes for phenoxazine-based organic dyes with two 2-cyanoacetic acid acceptors/anchors, and the inclusion of a 2-ethylhexyl chain at the nitrogen atom of the phenoxazine that is connected with furan, thiophene, and 3-hexylthiophene as a linker, are used as sensitizers for dye-sensitized solar cells. The double-anchoring dye exhibits strong electronic coupling with TiO2, provided that there is an efficient charge injection rate. The result showed that the power conversion efficiency of DP-2 with thiophene linker-based cell reached 3.80% higher than that of DP-1 with furan linker (η = 1.53%) under standard illumination. The photovoltaic properties are further tuned by co-adsorption strategy, which improved power conversion efficiencies slightly. Further molecular theoretical computation and electrochemical impedance spectroscopy analysis of the dyes provide further insight into the molecular geometry and the impact of the different π-conjugated spacers on the photophysical and photovoltaic performance.

Impact of fluorine substituted π-bridge on the photovoltaic performance of organic small-molecule donor materials

2021 ◽  
Author(s):  
Dongdong Fan ◽  
Chenling Fan ◽  
Hongyu Fan ◽  
Sunan Bao ◽  
Yan Zheng ◽  
...  
Keyword(s):  
Small Molecule ◽  
Photovoltaic Performance ◽  
The Impact

Two analogue molecules of BDTP-2F with difluorobenzene π-bridge and BDTP-4F with tetrafluorobenzene π-bridge are designed to investigate the impact of fluorine substituted π-bridge on the photovoltaic performance. In comparison with...

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