Results 101 to 110 of about 315 (122)

Performance Loss Induced by LeTID in the Field

2017
If not adequately suppressed, Light and elevated Temperature Induced Degradation (LeTID) has been shown to cause severe degradation of crystalline silicon solar cells and modules with passivated emitter and rear cell (PERC). Within this work, the system performance of LeTID-sensitive multicrystalline silicon (mc-Si) modules is investigated when ...
Kersten, F., Fertig, F., Petter, K., Klöter, B., Herzog, E., Strobel, M.B., Heitmann, J., Müller, J.W.   +7 more
openaire   +1 more source

Application of current injection to LeTID monitoring in industrial PERC cell production

2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 2020
Monitoring the light and elevated temperature induced degradation (LeTID) of crystalline silicon solar cells is becoming a standard quality control point in manufacturing. The conventional method light soaking shows several drawbacks, such as the slow response, the large footprint, and low throughput, which limit the LeTID test sampling rate ...
Fangdan Jiang
exaly   +2 more sources

A new mc-Si degradation effect called LeTID

2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 2015
A new degradation mechanism (LeTID, Light and elevated Temperature Induced Degradation) for multicrystalline solar cells is presented. The degradation reaches relative power losses of up to 10% on a time scale of several hundreds of hours of carrier injection and at field relevant temperatures.
Friederike Kersten, Peter Engelhart, Hans-Christoph Ploigt, Andrey Stekolnikov, Thomas Lindner, Florian Stenzel, Matthias Bartzsch, Andy Szpeth, Kai Petter, Johannes Heitmann, Jorg W. Muller   +10 more
openaire   +1 more source

Impact of Al2O3 and SiNx Passivation Layers on LeTID

2016
In this work the carrier lifetime evolution of different passivation layers under illumination and at elevated temperatures are investigated. Multicrystalline silicon lifetime samples were treated by implementing typical industrial processing steps.
Kersten, F., Heitmann, J., Müller, J.W.
openaire   +1 more source

Evolution of LeTID Defects in p-Type Multicrystalline Silicon During Degradation and Regeneration

IEEE Journal of Photovoltaics, 2017
While progress has been made in developing engineering solutions and understanding light- and elevated temperature-induced degradation (LeTID) in p -type multicrystalline silicon (mc-Si), open questions remain regarding the root cause of LeTID. Previously, lifetime spectroscopy of multicrystalline silicon (mc-Si) passivated emitter and rear cell ...
Ashley E Morishige, Jasmin Hofstetter, Tonio Buonassisi   +2 more
exaly   +2 more sources

Effect of Different AlOx Passivation Layers Deposited by APCVD and ALD on LeTID

2022
In this work the influence of AlOx, acting as a barrier layer for in-diffusion of H from a H-rich dielectric layer, on the strength and kinetics of the LeTID (light- and elevated temperature-induced degradation) phenomenon was investigated. For this purpose, different AlOx passivating layers deposited by different deposition methods, APCVD (atmospheric
Mehler, M., Geml, F., Schmid, A., Zuschlag, A., Hahn, G.   +4 more
openaire   +1 more source

Prediction of Potential Power/Yield Loss from LeTID Susceptible Modules

2019
Light-induced degradation (LID) is a known crystalline silicon cell effect that becomes noticeable in the first hours of light soaking or in the first days to weeks of operation of the PV system. The potential power loss is normally less than 3 % identified in the type approval test according to IEC 61215-2:2016 during stabilization (MQT 19.1 ...
Pander, M., Luka, T., Jäckel, B., Bauer, J., Daßler, D., Ebert, M., Turek, M., Hagendorf, C.   +7 more
openaire   +1 more source

Comparison of LeTID in Monofacial and Bifacial Multi-Crystalline PERC Cells and Modules

2020
37th European Photovoltaic Solar Energy Conference and Exhibition; 193 ...
Zhang, D., Wan, B., Yan, G., Wu, J., Jaubert, J.-N., Jiang, F.   +5 more
openaire   +1 more source

Impact of a Renewed SiNx:H Passivation Layer and/or a Renewed Firing Step on LeTID and Regeneration

2022
Light and elevated temperature induced degradation (LeTID) significantly affects the performance of crystalline Si solar cells. The underlying mechanisms of LeTID and following regeneration are still largely unknown, but the phenomenon seems to depend on the H content in the Si bulk.
Schmid, A., Zuschlag, A., Hahn, G.
openaire   +1 more source

The Mechanics of Light Elevated Temperature Induced Degradation (LeTID) on PERC Module: A Review

Transactions on Electrical and Electronic Materials
Junsin Yi, Engr. Hasnain Yousuf, Mengmeng Chu   +2 more
exaly   +2 more sources