Results 51 to 60 of about 315 (122)

Reducing Time and Costs of FT-IR Studies of the Effect of SiNx, Dopants, and Emitter on Hydrogen Species in Si Wafers and Solar Cell Structures

SiliconPV Conference Proceedings
Accurately measuring the hydrogen content in silicon (Si) solar cells is essential due to its connection to surface degradation and light and elevated temperature induced degradation (LeTID).
Nicole Aßmann, Rune Søndenå, Benjamin Hammann, Wolfram Kwapil, Eduard Monakhov   +4 more
doaj   +1 more source

Detect, Decouple, Optimise: Insights into Solar Photovoltaics Faults and Performance Trends

Solar RRL, Volume 9, Issue 18, September 2025.
This study integrates fault detection and diagnosis with long‐term performance analysis for over 300 PV system strings. By decoupling reversible operational faults from intrinsic degradation, it reveals how fault occurrence biases performance loss rates, introduces new reliability metrics, and provides strategies to optimise design, maintenance, and ...
Hugo Quest, Christophe Ballif, Alessandro Virtuani   +2 more
wiley   +1 more source

LeTID Stability Tests on Gallium-Doped Industrial PERC Cells and Wafers

, 2023
This study investigates the light and elevated temperature induced degradation (LeTID) stability of industrial gallium-doped PERC solar cells which now account for >90% of production.
Grant, Nicholas E., Kwapil, Wolfram, Altermatt, Pietro P., Niewelt, Tim, Pain, Sophie, Murphy, John D., Maischner, Felix, Khorani, Edris   +7 more
core   +1 more source

Study of Light-Induced Changes in the Optoelectronic Quality of Ga-Doped Silicon Wafers

SiliconPV Conference Proceedings
Light-induced degradation (LID) of boron-doped (B-doped) Czochralski silicon (Cz-Si) due to the formation of boron-oxygen (B-O) defects is a very well-known phenomenon that limits the stability of solar cells.
Andres Pardo Perdomo, Nerea Dasilva Villanueva, Özlem Coşkun, Usman Ali Shah, Luis Jaime Caballero, Cristian Antoine Ortiz, Nathan Muller, Çağrı Taha Delikanlı, Ece Çamkara, Meriç Çalışkan Arslan, Carlos del Cañizo Nadal, David Fuertes Marrón   +11 more
doaj   +1 more source

Combination of Indoor and Outdoor Measurements for the Identification of Degradation Trends in PV Modules

Solar RRL, Volume 9, Issue 16, August 2025.
We explore the degradation mechanisms of photovoltaic modules through a novel combination of indoor and outdoor measurements. We focus on the impact of moisture ingress and ultraviolet radiation on module performance and compare these effects on tunnel oxide passivated contact, HJT and PERC technologies. The methodology includes accelerated aging tests
Mariella Rivera, Paul Gebhardt, Anna Heimsath   +2 more
wiley   +1 more source

UV‐Induced Degradation of Industrial PERC, TOPCon, and HJT Solar Cells: The Next Big Reliability Challenge?

Solar RRL, Volume 8, Issue 23, December 2024.
The photovoltaic industry is now using UV‐transparent module encapsulants. Modern silicon solar cells must thus inherently withstand UV exposure. PERC, TOPCon, and HJT can all suffer from severe implied voltage degradation above 20 mV after 3.8 years of equivalent outdoor exposure. UV‐induced degradation can be the next big reliability challenge.
Fabian T. Thome, Pascal Meßmer, Sebastian Mack, Erdmut Schnabel, Florian Schindler, Wolfram Kwapil, Martin C. Schubert   +6 more
wiley   +1 more source

Daylight Photoluminescence Imaging via Optical String Switching

Solar RRL, Volume 8, Issue 19, October 2024.
The use of optical modulators enables the switching of the operating points of photovoltaic (PV) modules within one PV string connected to a utility‐scale PV inverter. This principle facilitates efficient daylight photoluminescence imaging, a noninvasive method enabling rapid image acquisition without altering PV system hardware or software.
Oliver Kunz, Juergen W. Weber, Germain Rey, Mattias Juhl, Thorsten Trupke   +4 more
wiley   +1 more source

Deciphering the Role of Hydrogen in the Degradation of Silicon Solar Cells under Light and Elevated Temperature

Solar RRL, Volume 8, Issue 20, October 2024.
This study explores the intricate interaction between involved hydrogen complexes and the light‐ and elevated‐temperature‐induced degradation (LeTID) defect states. The findings highlight the connection between the LeTID precursor and molecular hydrogen, as well as the influence of atomic hydrogen on the LeTID degradation and regeneration.
Benjamin Hammann, Pedro Vieira Rodrigues, Nicole Aßmann, Wolfram Kwapil, Florian Schindler, Martin C. Schubert, Stefan W. Glunz   +6 more
wiley   +1 more source

A systematic literature review of the bifacial photovoltaic module and its applications

The Journal of Engineering, Volume 2024, Issue 8, August 2024.
Abstract Bifacial modules can absorb radiation on both sides, increasing energy yield per unit area. Climatic conditions, mounting configuration, and system parameters influence the energy yield. The flexibility of bifacial modules allows for various installation orientations, including vertical and east‐west, which can help balance load profiles and ...
Rahimat O. Yakubu, Lena D. Mensah, David A. Quansah, Muyiwa S. Adaramola   +3 more
wiley   +1 more source

Reducing LeTID with an Adjustment of the AlO_x-SiN_y:H layer system

, 2020
Light and elevated temperature induced degradation (LeTID) negatively impacts the lifetime and electronic characteristics of silicon (Si) solar cells.
Zuschlag, Annika, Schmid, Andreas, Fischer, Christian, Hahn, Giso, Skorka, Daniel   +4 more
core   +1 more source