Error diagnosis and optimisation of c-Si solar cell processing using contact resistances determined with the Corescanner

Heide, A. S. H. van der; Bultman, J.H.; Hoornstra, Jaap; Schönecker, Axel

doi:10.1016/s0927-0248(02)00046-6

Cited by 28 publications

(15 citation statements)

References 2 publications

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“…Comparing series‐resistance maps obtained from Corescan 1 with r s –PL images, gives information about a lateral inhomogeneous rear contact: the Corescan technique measures with a scratching contact pin all series‐resistance contributions from the front side (finger, contact, and emitter), but not the contribution from the rear side. The r s –PL technique measures all series‐resistance contributions including the rear side.…”

Section: Discussionmentioning

confidence: 99%

“…Methods to quantify such variations measure at least partly the series resistance and assume that they mainly originate from contact‐resistance variations. These methods include Corescan 1, Cello 2, and techniques based on photoluminescence (PL) 3, 4, dark and illuminated lock‐in thermography 5, 6, or electroluminescence 7, 8. The traditional method to determine solely the contact resistance is the transmission line method (TLM) introduced by Berger 9 and extended by Reeves et al 10.…”

Section: Introductionmentioning

confidence: 99%

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Facile Synthesis of Thermal‐ and Photostable Titania with Paramagnetic Oxygen Vacancies for Visible‐Light Photocatalysis

Zou

Liu

et al. 2013

Chemistry A European J

148

123

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A novel dopant-free TiO(2) photocatalyst (V(o)(.)-TiO(2)), which is self-modified by a large number of paramagnetic (single-electron-trapped) oxygen vacancies, was prepared by calcining a mixture of a porous amorphous TiO(2) precursor, imidazole, and hydrochloric acid at elevated temperature (450 °C) in air. Control experiments demonstrate that the porous TiO(2) precursor, imidazole, and hydrochloric acid are all necessary for the formation of V(o)(.)-TiO(2). Although the synthesis of V(o)(.)-TiO(2) originates from such a multicomponent system, this synthetic approach is facile, controllable, and reproducible. X-ray diffraction, XPS, and EPR spectroscopy reveal that the V(o)(.)-TiO(2) material with a high crystallinity embodies a mass of paramagnetic oxygen vacancies, and is free of other dopant species such as nitrogen and carbon. UV/Vis diffuse-reflectance spectroscopy and photoelectrochemical measurement demonstrate that V(o)(.)-TiO(2) is a stable visible-light-responsive material with photogenerated charge separation efficiency higher than N-TiO(2) and P25 under visible-light irradiation. The V(o)(.)-TiO(2) material exhibits not only satisfactory thermal- and photostability, but also superior photocatalytic activity for H(2) evolution (115 μmol h(-1) g(-1)) from water with methanol as sacrificial reagent under visible light (λ>400 nm) irradiation. Furthermore, the effects of reaction temperature, ratio of starting materials (imidazole:TiO(2) precursor) and calcination time on the photocatalytic activity and the microstructure of V(o)(.)-TiO(2) were elucidated.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Thermal‐ and Photostable Titania with Paramagnetic Oxygen Vacancies for Visible‐Light Photocatalysis

Zou

Liu

et al. 2013

Chemistry A European J

148

123

View full text Add to dashboard Cite

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“…Characterization of the NPN structures as formed have been carried out measuring their sheet resistance and through Suns-V oc [8] before and after metallization. Additionally Current-Voltage in the solar simulator, spectral response and contact resistance by CORESCAN [9] have been obtained for representative samples from each batch. The mass spectra were recorded on a Time of Flight Secondary Ion Mass Spectrometry TOF-SIMS IV instrument from Ion-Tof GmbH.…”

Section: Methodsmentioning

confidence: 99%

Fabrication and characterization of thin c-Si solar cells by low cost methods

Ochoa-Martínez

Gabás

Vazquez

et al. 2012

2012 38th IEEE Photovoltaic Specialists Conference

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Following the decreasing thickness tendency in PV industry, there have been prepared c-Si solar cells on thin substrates (100 -120 µm) by means of low cost methods, suitable for industrial application like spray coating and screen printing. Commercial and non-commercial doping sources are tested. A special emphasis is made on contamination tracing throughout the entire process by means of XPS and SIMS analysis. CurrentVoltage, spectral response and contact resistance scanning of the cells are presented. Efficiencies of up to 12.2% have been achieved for 4x4 cm cells without antireflective or special passivation technology.

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“…We note that previous contributions have described the study of series resistances with a spatial resolution using noncamera-based techniques 14,15 and camera-based techniques. [16][17][18][19] However, those methods provide maps of an R S parameter, which is an aggregate of all the series resistances existing in the solar cell.…”

Section: Introductionmentioning

confidence: 99%

Current transport efficiency analysis of multijunction solar cells by luminescence imaging

Delamarre

Jeco

et al. 2019

Progress in Photovoltaics

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Multijunction solar cells are currently leading in efficiency among all types of solar cells. However, the efficiency of those cells under concentrated illumination is limited by the trade‐off between shadowing by the contact grid and series resistances. In this paper, we provide a method using luminescence to image the current transport efficiency for a precise and rapid measurement of the resistance effect. Light beam induced current (LBIC) measurement is used for the first time to calculate current transport efficiency in comparison with that of the luminescence method. Profiles of transport efficiency in both means are in good agreement. Furthermore, a quasi‐3‐D simulation using SPICE is used to explain the transport efficiency image. We find that the carrier transport efficiency distribution is primarily influenced by the perimeter recombination of the middle cell.

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Error diagnosis and optimisation of c-Si solar cell processing using contact resistances determined with the Corescanner

Cited by 28 publications

References 2 publications

Facile Synthesis of Thermal‐ and Photostable Titania with Paramagnetic Oxygen Vacancies for Visible‐Light Photocatalysis

Facile Synthesis of Thermal‐ and Photostable Titania with Paramagnetic Oxygen Vacancies for Visible‐Light Photocatalysis

Fabrication and characterization of thin c-Si solar cells by low cost methods

Current transport efficiency analysis of multijunction solar cells by luminescence imaging

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