Results 11 to 20 of about 1,849 (205)

Highly Flexible Electroluminescent Devices Based on Super Durable AlN‐Dispersed Ag Ultrathin Films

open access: yesAdvanced Materials Interfaces, 2023
High performance and durable electrodes are prerequisites for the stable operation of various optoelectronic devices, such as alternating current electroluminescence (ACEL) applications.
Zhi Han   +6 more
doaj   +1 more source

The impact of cracks on photovoltaic power performance

open access: yesJournal of Science: Advanced Materials and Devices, 2017
This paper demonstrates a statistical analysis approach, which uses T-test and F-test for identifying whether the crack has significant impact on the total amount of power generated by the photovoltaic (PV) modules.
Mahmoud Dhimish   +3 more
doaj   +1 more source

RF Overdrive Burnout Behavior and Mechanism Analysis of GaN HEMTs Based on High Speed Camera

open access: yesIEEE Journal of the Electron Devices Society, 2023
In this work, a new method for failure analysis of electronic components, high speed camera, is used to investigate burnout failure location of GaN HEMTs under RF overdrive stress.
Chang Liu   +8 more
doaj   +1 more source

Experimental Evidence of PID Effect on CIGS Photovoltaic Modules

open access: yesEnergies, 2020
As well known, potential induced degradation (PID) strongly decreases the performance of photovoltaic (PV) strings made of several crystalline silicon modules in hot and wet climates.
Sofiane Boulhidja   +6 more
doaj   +1 more source

Effect of Wind Load on Performance of Photovoltaic (PV) Modules Available in Pakistan

open access: yesMehran University Research Journal of Engineering and Technology, 2021
Mechanical integrity of a Photovoltaic (PV) module plays a major role in its performance and electrical output. Mechanical loads which include loads produced by wind, snow, rain, and hail tend to degrade the performance of PV module by generating ...
Rizwan Mehmood Gul   +3 more
doaj   +1 more source

Detection of Micro-Cracks in PV System using Electroluminescence (EL) Testing

open access: yesÖmer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 2023
With the increase in the use of solar energy, the investigation of the failures that cause the decrease in efficiency and loss in production is increasing day by day. It is extremely beneficial to conduct on-site testing of solar systems in order to evaluate the plant's actual performance and identify potential problems. There are important methods for
openaire   +2 more sources

A benchmark dataset for defect detection and classification in electroluminescence images of PV modules using semantic segmentation

open access: yesSystems and Soft Computing, 2023
Electroluminescence (EL) images enable defect detection in solar photovoltaic (PV) modules that are otherwise invisible to the naked eye, much the same way an x-ray enables a doctor to detect cracks and fractures in bones. This paper presents a benchmark
Lawrence Pratt   +2 more
doaj   +1 more source

Growth, Stimulated Emission, Photo‐ and Electroluminescence of InGaN/GaN EL‐Test Heterostructures [PDF]

open access: yesphysica status solidi (c), 2002
The electroluminescence properties of InGaN/GaN electroluminescence test heterostructures grown on sapphire and silicon substrates in the temperature interval of 300–380 K were investigated as a function of current at DC and pulsed excitation. A competition between the short wavelength shift of the spectral maximum position with current increase due to
E.V. Lutsenko   +14 more
openaire   +1 more source

A Test of Electroluminescent Panels for a Helicopter Emergency Escape Lighting System [PDF]

open access: yes, 1984
Abstract : The effectiveness of a lighting system composed of electroluminescent panels and proposed for use in illuminating escape hatches was tested. It was visible to light-adapted subjects in turbid water at the distance and viewing angles required by the Naval Air Development Center.
Vera Robbins   +2 more
openaire   +1 more source

Non-Destructive Failure Detection and Visualization of Artificially and Naturally Aged PV Modules

open access: yesEnergies, 2018
Several series of six-cell photovoltaic test-modules—intact and with deliberately generated failures (micro-cracks, cell cracks, glass breakage and connection defects)—were artificially and naturally aged.
Gabriele C. Eder   +5 more
doaj   +1 more source

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