Journal ArticleDOI
Detection and analysis of hot-spot formation in solar cells
Michael Simon,Edson L. Meyer +1 more
TLDR
In this paper, infrared thermography (IR) was used to map the surface temperature distribution of solar cells while in the reverse bias mode, and it was observed that some cells exhibited an inhomogeneity of the surface temperatures resulting in localized heating (hot-spot).About:
This article is published in Solar Energy Materials and Solar Cells.The article was published on 2010-02-01. It has received 181 citations till now. The article focuses on the topics: Solar cell.read more
Citations
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Proceedings ArticleDOI
Experimental Assessment of Malfunction Events in Photovoltaic Modules from IR Thermal Maps
Pierluigi Guerriero,Antonio Pio Catalano,Ilaria Matacena,Lorenzo Codecasa,Vincenzo d'Alessandro,Santolo Daliento +5 more
TL;DR: An innovative diagnostic technique to be adopted for the smart maintenance of photovoltaic plants is able to relate the temperature distribution over PV modules, achievable by means of thermographic images, with the electrical produced/dissipated power of each single cell in the modules.
Journal ArticleDOI
Recent advancements in micro-crack inspection of crystalline silicon wafers and solar cells
Journal ArticleDOI
Low-breakdown-voltage solar cells for shading-tolerant photovoltaic modules
TL;DR: In this article , the authors analyzed how interdigitated back-contact solar cells with low-breakdown voltages can help improve the shading tolerance of PV modules, and they showed that the breakdown voltage can be tuned without significantly degrading the efficiency of the solar cell.
Journal ArticleDOI
Improvements to the solar cell efficiency and production yields of low-lifetime wafers with effective phosphorus gettering
TL;DR: In this article, the authors focus on the improvement of solar cell efficiencies in low-lifetime wafers by implementing an appropriate gettering method of the diffusion process and consider a reduction in the value of the reverse current at −12V, an important electrical parameter related to the hot-spot heating of solar cells and modules, to improve the product's quality during commercial mass production.
References
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Journal ArticleDOI
Shunt Types in Crystalline Silicon Solar Cells
TL;DR: In this article, nine different types of shunt have been found in state-of-the-art mono and multicrystalline solar cells by lock-in thermography and identified by SEM investigation.
Proceedings ArticleDOI
Hot spot investigations on PV modules-new concepts for a test standard and consequences for module design with respect to bypass diodes
TL;DR: The selection of the worst case cell should be improved by measurement of the module current at the characteristic break point of the I-V characteristic, and the hot-spot test procedure of IEC 1215 should be generalised for all types of cell interconnection circuits.
Journal ArticleDOI
Transition-metal profiles in a multicrystalline silicon ingot
TL;DR: In this paper, the concentrations of transition-metal impurities in a photovoltaic-grade multicrystalline silicon ingot have been measured by neutron activation analysis, and the results show that the concentration of Fe, Co, and Cu are determined by segregation from the liquid-to-solid phase in the central regions of the ingot.
Proceedings ArticleDOI
Applications for infrared imaging equipment in photovoltaic cell, module, and system testing
TL;DR: In this paper, the authors use portable infrared imaging systems (cameras) to measure both absolute and relative temperature distributions on small and large components with a high degree of temperature and spatial resolution.
Journal ArticleDOI
Observation of transition metals at shunt locations in multicrystalline silicon solar cells
Tonio Buonassisi,O. F. Vyvenko,Andrei A. Istratov,Eicke R. Weber,Giso Hahn,Detlef Sontag,J.P. Rakotoniaina,Otwin Breitenstein,Jörg Isenberg,R. Schindler +9 more
TL;DR: By employing a combination of analytical tools including lock-in thermography and synchrotron-based x-ray fluorescence microscopy, transition metals have been identified at shunting locations in two types of low-cost multicrystalline silicon (mc-Si) solar cell materials as discussed by the authors.