On KCN treatment effects on optical properties of Si-based bilayers-Reference-Cited by-同舟云学术

On KCN treatment effects on optical properties of Si-based bilayers

Published:2019-09-28 Issue:7 Volume:70 Page:77-82
ISSN:1339-309X
Container-title:Journal of Electrical Engineering
language:en
Short-container-title:

Author:

Müllerová Jarmila¹,Pinčík Emil²,Králik Martin¹,Holá Michaela¹,Takahashi Masao³⁴,Kobayashi Hikaru³

Affiliation:

1. Institute of Aurel Stodola, Faculty of Electrical Engineering and Information Technology , University of Žilina , ul. kpt. J. Nálepku 1390, 031 01 Liptovský Mikuláš , Slovakia

2. Institute of Physics , Slovak Academy of Sciences , Dúbravská cesta 9, 845 11 Bratislava , Slovakia

3. Institute of Scientific and Industrial Research of Osaka University , and CREST, Japan Science and Technology Organization, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047 , Japan

4. Currently with the Tokyo University of Technology , 1404-1, Katakura, Hachioji, Tokyo 192-0982 , Japan

Abstract

Abstract In this paper we report results from optical transmittance spectroscopy complemented with data from Raman scattering measurements to determine optical properties of two series of silicon based bilayers deposited by PECVD on glass substrate (intrinsic a-Si:H/p-type a-SiC:H and n-type mc-Si:H/intrinsic a-Si:H). These samples represent segments of common p-i-n thin film amorphous silicon solar cells with intrinsic hydrogenated silicon (a-Si:H) as the solar absorber. The members of the series differ by the KCN treatment conditions. Dispersive and absorptive optical properties – refractive indices, absorption coefficients and optical band gaps were determined from transmittance spectra. Each bilayer was considered as one effective thin film the optical properties of which can be regarded as effective optical properties of the bilayer structure. After KCN treatments refractive indices were modified probably due to the structural changes of bilayers. Moreover the effect of the solvent used in KCN solutions was recognized. Optical band gaps calculated either by the Tauc procedure or determined as iso-absorption levels were found to be only slightly KCN treatment dependent.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/jee-2019-0045

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