Publication detail

Detection of microstructural defects in chalcopyrite Cu(In,Ga)Se2 solar cells by spectrally-filtered electroluminescence

ŠKVARENINA, Ľ. GAJDOŠ, A. MACKŮ, R. ŠKARVADA, P.

Original Title

Detection of microstructural defects in chalcopyrite Cu(In,Ga)Se2 solar cells by spectrally-filtered electroluminescence

Type

conference paper

Language

English

Original Abstract

The aim of this research is to detect and localize microstructural defects by using an electrically excited light emission from a forward/reverse-bias stressed pn-junction in thin-film Cu(In; Ga)Se2 solar cells with metal wrap through architecture. A different origin of the local light emission from intrinsic/extrinsic imperfections in these chalcopyrite-based solar cells can be distinguished by a spectrally-filtered electroluminescence mapping. After a light emission mapping and localization of the defects in a macro scale is performed a micro scale exploration of the solar cell surface by a scanning electron microscope which follows the particular defects obtained by an electroluminescence. In particular, these macroscopic/microscopic examinations are performed independently, then the searching of the corresponding defects in the micro scale is rather difficult due to a diffused light emission obtained from the macro scale localization. Some of the defects accompanied by a highly intense light emission very often lead to a strong local overheating. Therefore, the lock-in infrared thermography is also performed along with an electroluminescence mapping

Keywords

CIGS; chalcopyrite; thin-film; solar cell; microstructural defects; electroluminescence mapping; scanning electron microscope; lock-in infrared thermography

Authors

ŠKVARENINA, Ľ.; GAJDOŠ, A.; MACKŮ, R.; ŠKARVADA, P.

Released

1. 12. 2017

Publisher

SPIE

Location

Bellingham, Washington 98227-0010 USA

ISBN

9781510617025

Book

Photonics, Devices, and Systems VII

ISBN

0277-786X

Periodical

Proceedings of SPIE

Year of study

10603

State

United States of America

Pages from

1

Pages to

7

Pages count

7

URL

http://dx.doi.org/10.1117/12.2286841

BibTex

@inproceedings{BUT138627,
  author="Ľubomír {Škvarenina} and Adam {Gajdoš} and Robert {Macků} and Pavel {Škarvada}",
  title="Detection of microstructural defects in chalcopyrite Cu(In,Ga)Se2 solar cells by spectrally-filtered electroluminescence",
  booktitle="Photonics, Devices, and Systems VII",
  year="2017",
  journal="Proceedings of SPIE",
  volume="10603",
  pages="1--7",
  publisher="SPIE",
  address="Bellingham, Washington 98227-0010 USA",
  doi="10.1117/12.2286841",
  isbn="9781510617025",
  issn="0277-786X",
  url="http://dx.doi.org/10.1117/12.2286841"
}