Detail publikace

Microscale localization and isolation of light emitting imperfections in monocrystalline silicon solar cells

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

Originální název

Microscale localization and isolation of light emitting imperfections in monocrystalline silicon solar cells

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

An imperfections or defects may appear in fabricated monocrystalline solar cells. These microstructural imperfections could have impact on the parameters of whole solar cell. The research is divided into two parts, firstly, the detection and localization defects by using several techniques including current-voltage measurement, scanning probe microscopy (SPM), scanning electron microscope (SEM) and electroluminescence. Secondly, the defects isolation by a focused ion beam (FIB) milling and impact of a milling process on solar cells. The defect detection is realized by I-V measurement under reverse biased sample. For purpose of localization, advantage of the fact that defects or imperfections in silicon solar cells emit the visible and near infrared electroluminescence under reverse biased voltage is taken, and CCD camera measurement for macroscopic localization of these spots is applied. After rough macroscopic localization, microscopic localization by scanning probe microscopy combined with a photomultiplier (shadow mapping) is performed. Defect isolation is performed by a SEM equipped with the FIB instrument. FIB uses a beam of gallium ions which modifies crystal structure of a material and may affect parameters of solar cell. As a result, it is interesting that current in reverse biased sample with isolated defect is smaller approximately by 2 orders than current before isolation process.

Klíčová slova

Silicon, solar cell, focused ion beam, I-V curve, SEM, SNOM

Autoři

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

Vydáno

1. 12. 2017

Nakladatel

SPIE

Místo

Bellingham, Washington 98227-0010 USA

ISBN

9781510617025

Kniha

Photonics, Devices, and Systems VII

ISSN

0277-786X

Periodikum

Proceedings of SPIE

Ročník

10603

Stát

Spojené státy americké

Strany od

1

Strany do

6

Strany počet

6

URL

BibTex

@inproceedings{BUT142318,
  author="Adam {Gajdoš} and Ľubomír {Škvarenina} and Pavel {Škarvada} and Robert {Macků}",
  title="Microscale localization and isolation of light emitting imperfections in monocrystalline silicon solar cells",
  booktitle="Photonics, Devices, and Systems VII",
  year="2017",
  journal="Proceedings of SPIE",
  volume="10603",
  pages="1--6",
  publisher="SPIE",
  address="Bellingham, Washington 98227-0010 USA",
  doi="10.1117/12.2292711",
  isbn="9781510617025",
  issn="0277-786X",
  url="http://dx.doi.org/10.1117/12.2292711"
}