Results 11 to 20 of about 19,763 (120)

Atomic Layer Deposition of Ultrathin ZnO Films for Hybrid Window Layers for Cu(Inx,Ga1−x)Se2 Solar Cells

open access: yesNanomaterials, 2021
The efficiency of thin-film chalcogenide solar cells is dependent on their window layer thickness. However, the application of an ultrathin window layer is difficult because of the limited capability of the deposition process.
Jaebaek Lee   +7 more
doaj   +1 more source

Effect of Al2O3 Dot Patterning on CZTSSe Solar Cell Characteristics

open access: yesNanomaterials, 2020
In this study, a 5-nm thick Al2O3 layer was patterned onto the Mo electrode in the form of a dot to produce a local rear contact, which looked at the effects of this contact structure on Cu2ZnSn(S1-xSex)4 (CZTSSe) growth and solar cell devices.
Se-Yun Kim   +8 more
doaj   +1 more source

Highly Efficient and Stable FAPbI3 Perovskite Solar Cells and Modules Based on Exposure of the (011) Facet

open access: yesNano-Micro Letters, 2023
Highlights The (011) facet has excellent charge transport properties achieving closer alignment of energy levels. By exploiting the (011) facet a device (0.06 cm2) and a module (29 cm2) achieved power conversion efficiencies of 25.24% and 21.12 ...
Kai Zhang   +14 more
doaj   +1 more source

Composite membranes anchoring phosphotungstic acid by β-cyclodextrins modified halloysite nanotubes

open access: yesPolymer Testing, 2021
Anchoring phosphotungstic acid (HPW) on insoluble inorganic fillers is a facile and effective approach to suppress its leakage in the proton exchange membrane.
Shaojian He   +5 more
doaj   +1 more source

The challenge of studying perovskite solar cells’ stability with machine learning

open access: yesFrontiers in Energy Research, 2023
Perovskite solar cells are the most dynamic emerging photovoltaic technology and attracts the attention of thousands of researchers worldwide. Recently, many of them are targeting device stability issues–the key challenge for this technology–which has ...
Paolo Graniero   +9 more
doaj   +1 more source

Shielding effectiveness measurements and uncertainty estimation for textiles by a VNA-based free space transmission method [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2013
A free-space transmission method has been used for reliable shielding effectiveness measurement of the easily available textile materials. Textiles with three different yarn densities were studied for their shielding effectiveness ...
Patel S.M.   +3 more
doaj   +1 more source

Self-Alignment of Bottom CZTSSe by Patterning of an Al2O3 Intermediate Layer

open access: yesNanomaterials, 2019
When CZTSSe is synthesized using a metal precursor, large voids of nonuniform size form at Mo back contact side. Herein, we demonstrate that the voids and CZTSSe in the lower part of the CZTSSe double layer can be controlled by using an Al2O3-patterned ...
Sanghun Hong   +8 more
doaj   +1 more source

Solar cells based on CdTe thin films

open access: yesФізика і хімія твердого тіла, 2021
An analysis of the use of semiconductor solar cells based on thin-film cadmium telluride (CdTe) in power engineering is carried out. It is shown that the advantages of thin-film technology and CdTe itself as a direct-gap semiconductor open up the ...
T.M. Mazur   +3 more
doaj   +1 more source

Effect of Ga Addition on Morphology and Recovery of Primary Si During Al–Si Alloy Solidification Refining

open access: yesHigh Temperature Materials and Processes, 2015
The effect of Ga addition on alloy macrostructure, morphology and recovery rate of primary Si during the Al–Si–Ga alloy solvent refining process of silicon was studied in this work.
Li Jingwei   +4 more
doaj   +1 more source

Facial Recognition Method Based on Thin-Film Solar Cells

open access: yesApplied Sciences, 2022
In this study, we developed a new facial recognition system using thin-film solar cells as sensors. When the face of a user is illuminated by LED lights on the left and right sides of the system and the reflected light enters the cells at the ...
Ruei-Tang Chen, Fong-Long Wu
doaj   +1 more source

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