Results 11 to 20 of about 570,010 (309)

From Contact Relations to Modal Operators, and Back

open access: yesStudia Logica, 2023
AbstractOne of the standard axioms for Boolean contact algebras says that if a regionxis in contact with the join ofyandz, thenxis in contact with at least one of the two regions. Our intention is to examine a stronger version of this axiom according to which ifxis in contact with the supremum of some familySof regions, then there is a yinSthat is in ...
Rafal Gruszczynski, Paula Menchón
openaire   +5 more sources

Fabrication methods for high reflectance dielectric-metal point contact rear mirror for optoelectronic devices

open access: yesMethodsX, 2022
The patterned dielectric back contact (PDBC) structure can be used to form a point-contact architecture that features a dielectric spacer with spatially distributed, reduced-area metal point contacts between the semiconductor back not recognized contact ...
Madhan K. Arulanandam   +9 more
doaj   +1 more source

Phototransistor Behavior in CIGS Solar Cells and the Effect of the Back Contact Barrier

open access: yesEnergies, 2020
In this paper, the impact of the back contact barrier on the performance of Cu (In, Ga) Se2 solar cells is addressed. This effect is clearly visible at lower temperatures, but it also influences the fundamental parameters of a solar cell, such as open ...
Ricardo Vidal Lorbada   +6 more
doaj   +1 more source

ZnO thickness and ZnTe back contact effect of CdTe thin film solar cell Voc and efficiency progression

open access: yesMaterials Research Express, 2021
CdTe thin film (TF) solar cells are most promising photovoltaic (PV) technology in commercial platform. Back contacts and interface defects related opto-electrical losses are still vital to limit its further technological benefit.
Bablu K Ghosh   +3 more
doaj   +1 more source

Electrodeposition of Bi2Te3 thin films onto FTO substrates from DMSO solution

open access: yesInternational Journal of Electrochemical Science, 2015
We report the pulsed electrodeposition (PED) of Bi2Te3 thin films from TeCl4 and Bi(NO3)3 precursors dissolved in dimethylsulfoxide (DMSO) onto SnO2:F coated glasses (FTO) and CdTe/FTO substrates.
M. Abellán, R. Schrebler, H. Gómez
doaj   +1 more source

Back contacts materials used in thin film CdTe solar cells—A review

open access: yesEnergy Science & Engineering, 2021
CdTe is the leading commercial thin film photovoltaic technology with current record laboratory efficiency (22.1%). However, there is much potential for progress toward the Shockley‐Queisser limit (32%).
Ralph Stephen Hall   +2 more
doaj   +1 more source

Comparative device performance of CZTS solar cell with alternative back contact

open access: yesMaterials Letters: X, 2021
In this study we report the comparative study of CZTS/CdS solar cell device with two different back contacts. The device configuration of ITO/CZTS/CdS and Ni/CZTS/CdS are fabricated and characterized.
Atul Kumar   +2 more
doaj   +1 more source

Optimization of Mo/Cr bilayer back contacts for thin-film solar cells

open access: yesBeilstein Journal of Nanotechnology, 2018
Molybdenum (Mo) is the most commonly used material as back contact in thin-film solar cells. Adhesion of Mo film to soda–lime glass (SLG) substrate is crucial to the performance of solar cells. In this study, an optimized bilayer structure made of a thin
Nima Khoshsirat   +6 more
doaj   +1 more source

The Effect of Work Function of Back Contact Metals on the Performance of CdTe Solar Cells [PDF]

open access: yesPhysics Access
The CdTe thin film solar cells suffer power losses at the back contact due to charge losses due to poor mismatch of the work function of interfacing back contact materials.
Mohammed M Aliyu
doaj   +1 more source

Study on the VCRplus Back-Up Roll Contour of 1500 mm CVC Mill

open access: yesMetals, 2023
The back-up rolls of hot strip mills wear considerably under the conditions of high temperature and heavy load, which affects the roll service period and the stability of strip profile control.
Yuchao Wang   +5 more
doaj   +1 more source

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