LED array scanner for inline characterization of thin film photovoltaic modules

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LED array scanner for inline characterization of thin film photovoltaic modules

Bergqvist, Jonas

Thin film solar cells, and in particular printed organic solar cells, offer a potential route to a low cost power generation from sunlight. However, manufacturing these solar cells rapidly generates large areas that have to be characterized, preferably in-line for a direct feed back in the production process. Here we introduce the LEDimage, a LED array illumination induced photocurrent method suitable for high speed inline characterization and defect detection of organic solar cell modules. The LEDimage enables simultaneous illumination of all connected subcells without additional bias light. Each LED in the array is amplitude modulated at an individual frequency and the photocurrent response is Fourier transformed to generate a photocurrent map. Furthermore, the LEDimage can be used as a hand scanner for fast device characterization. We expect that LEDimage can be an effective research and industry tool for characterization of large area thin film solar cells.

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Title :

LED array scanner for inline characterization of thin film photovoltaic modules

Contributors:

Bergqvist, Jonas (author) / Tholén, Erik A / Inganäs, Olle

Published in:

Solar energy materials & solar cells ; 157 , 17

Publication date :

2016

ISSN :

0927-0248

DOI :

https://doi.org/10.1016/j.solmat.2016.08.010

Type of media :

Article (Journal)

Type of material :

Language :

English

Keywords :

Zeitschrift , Sonnenenergie , Fotovoltaik

Classification :

BKL:

53.36 Energiedirektumwandler, elektrische Energiespeicher / 52.52 Thermische Energieerzeugung, Wärmetechnik / 52.56 Regenerative Energieformen, alternative Energieformen / 50.70 Energie: Allgemeines

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Prospects of wide-gap chalcopyrites for thin film photovoltaic modules

Herberholz, R. | Online Contents | 1997

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