journal article·2024-05Open access

Synergetic Effect of Gas Compositions on Material Properties of n‐Type Nanocrystalline Silicon Oxide Prepared by Plasma‐Enhanced Chemical Vapor Deposition

Depeng Qiu, Weiyuan Duan, Andreas Lambertz, Karsten Bittkau, Uwe Rau, Kaining Ding

Solar RRL· Volume 8· Issue 9

Abstract

Hydrogenated nanocrystalline silicon oxide (nc‐SiOx:H) has drawn extensive attention during the past years for the utilization of silicon heterojunction (SHJ) solar cells. This material is demonstrated to be the key to the performance improvement of SHJ solar cells. Herein, the influence of the process gas compositions on the optical, electronic, chemical, and structural properties of n‐type nc‐SiOx:H films at the thickness of 38 nm is systematically investigated. The synergetic effect of CO2 and PH3 gas flow fraction ( and ) and the synergetic effect of CO2 and SiH4 gas flow fraction ( and ) on the growth of nc‐SiOx:H (n) films are demonstrated. Creatively combining the Fourier‐transform infrared, UV‐Raman scattering spectroscopy, spectroscopy ellipsometry, and photo‐thermal deflection spectroscopy measurement, the mechanism behind the synergetic effect of the gas compositions on the material properties is analyzed.
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Research context

OpenAlex topics: Silicon Nanostructures and Photoluminescence · Thin-Film Transistor Technologies · Silicon and Solar Cell Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

IEK‐5 Photovoltaics Forschungszentrum Jülich GmbH Wilhelm‐Johnen Straße 52425 Jülich Germany

Faculty of Electrical Engineering and Information Technology RWTH Aachen University Mies‐van‐der‐Rohe‐Straße 15 52074 Aachen Germany

Institute of Energy Research Jiangxi Academy of Sciences Nanchang 330096 China

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