Electrochemical corrosion of SnO2:F transparent conducting layers in thin-film photovoltaic modules

Osterwald, C.R.; McMahon, T. J.; Cueto, J. A. del

doi:10.1016/s0927-0248(02)00363-x

Cited by 98 publications

(72 citation statements)

References 2 publications

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“…However, once the corrosion starts, the rate of corrosion does not exhibit a strong temperature dependence. Osterwald et al 3 observed a similar temperature dependence of the time delay in their corrosion tests of a-Si PV modules. However, their experiments indicated that, once initiated, the rate of corrosion increased with temperature with an activation energy of about 0Á8 eV.…”

Section: Resultsmentioning

confidence: 63%

“…It was also found that the corrosion could be inhibited by setting up the PV system so that the front contact (the tin oxide) was biased positively with respect to ground. 3 In particular, electrochemical corrosion effects have been observed on occasion in both amorphous silicon (aSi) and cadmium telluride (CdTe) PV modules in recent years, especially in modules or arrays that operate at high voltages. In the current work, a number of experiments were performed to identify the root causes of electrochemical corrosion in thin-film PV modules fabricated on glass substrates with different types of transparent conductive oxides.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion effects in thin‐film photovoltaic modules

Carlson¹,

Romero²,

Willing³

et al. 2003

Progress in Photovoltaics

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Electrochemical corrosion effects can occur in thin-film photovoltaic (PV) modules that are fabricated on tin-oxide-coated glass when operating at high voltages and at elevated temperatures in a humid climate. The current study shows that this corrosion is associated with a delamination of the tin oxide layer from the glass, which is caused by sodium accumulation near the interface between the tin oxide and the glass and by the ingression of moisture into the PV module from the edges. This corrosion in thin-film PV modules can be significantly reduced by altering the growth conditions of the tin oxide or by using zinc oxide as a transparent conductive oxide electrode.

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Section: Resultsmentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Corrosion effects in thin‐film photovoltaic modules

Carlson¹,

Romero²,

Willing³

et al. 2003

Progress in Photovoltaics

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show abstract

“…If partial shading occurs in multi-string systems, an individual maximum power point (MPP) tracking of every string is very advantageous to maximize the energy yield. Furthermore, it may be required to connect one pole of the strings to the neutral conductor N. Connecting the negative poles to N can prevent thin-film solar modules from corrosion of the transparent conductive oxide (TCO) [1]. Connecting the positive poles to N can lead to a higher efficiency if back-side contacted solar modules are used [2].…”

Section: Introductionmentioning

confidence: 99%

A multi-string photovoltaic inverter for thin-film or back-side contacted solar modules

Gommeringer

Schmitt

Braun

2016

8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

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Photovoltaic inverters are widely used to feed solar generated power into the public grid. Inverter topologies have to be carefully chosen, depending on the type and on the power of the solar generator. A new transformerless, three-level photovoltaic inverter circuit for multiple strings is investigated in this paper. It allows an individual MPP tracking of each string without needing a full scale boost converter for each input. Furthermore, either the positive poles or the negative poles of the strings can be connected to the neutral conductor N. Therefore, the topology is especially suited for thin-film or back-side contacted solar modules.

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“…In contrast to this, many back-side contacted solar modules require negative voltages to earth to achieve a high efficiency. The technical background of these effects is described in [1] and [2]. Furthermore, some grid codes, e.g.…”

Section: Introductionmentioning

confidence: 99%

A transformerless single-phase PV inverter circuit for thin-film or back-side contacted solar modules

Gommeringer

Kammerer

Schmitt

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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Abstract-This paper deals with a new transformerless single-phase photovoltaic inverter circuit. The circuit is well suited for thin-film or back-side contacted solar modules because one pole of the solar module can be directly connected to the neutral conductor. The circuit uses a flying capacitor for one of both half-waves, requires only five transistors and is capable of providing inductive as well as capacitive reactive power.

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Electrochemical corrosion of SnO2:F transparent conducting layers in thin-film photovoltaic modules

Cited by 98 publications

References 2 publications

Corrosion effects in thin‐film photovoltaic modules

Corrosion effects in thin‐film photovoltaic modules

A multi-string photovoltaic inverter for thin-film or back-side contacted solar modules

A transformerless single-phase PV inverter circuit for thin-film or back-side contacted solar modules

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