TY - JOUR
T1 - Evidence for high negative charge densities in AlF3 coatings on oxidized silicon
T2 - a promising source for large drift fields
AU - König, D
AU - Ebest, G
AU - Scholz, R
AU - Gemming, S
AU - Thurzo, I
AU - Kampen, TU
AU - Zahn, DRT
PY - 2002/4
Y1 - 2002/4
N2 - Fixed negative charges in coatings of silicon solar cells can serve as an efficient source for large drift fields, thereby passivating the silicon surface and improving charge separation of the electron-hole pairs. In the present work, we report on the evidence for a high negative charge density in AlF3 coatings on oxidized silicon. The existence of these charges is related to sub-stoichiometric Fluorine content close to the AlF3/SiO2 interface, as evidenced both in measurements and density functional calculations of an electron trapped in a fluorine vacancy. (C) 2002 Elsevier Science B.V. All rights reserved.
AB - Fixed negative charges in coatings of silicon solar cells can serve as an efficient source for large drift fields, thereby passivating the silicon surface and improving charge separation of the electron-hole pairs. In the present work, we report on the evidence for a high negative charge density in AlF3 coatings on oxidized silicon. The existence of these charges is related to sub-stoichiometric Fluorine content close to the AlF3/SiO2 interface, as evidenced both in measurements and density functional calculations of an electron trapped in a fluorine vacancy. (C) 2002 Elsevier Science B.V. All rights reserved.
KW - Density functional calculations
KW - Drift fields
KW - Electron localization
KW - Fixed charges
KW - Fluorine
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=anu_research_portal_plus2&SrcAuth=WosAPI&KeyUT=WOS:000177036300045&DestLinkType=FullRecord&DestApp=WOS_CPL
U2 - 10.1016/S1386-9477(02)00399-5
DO - 10.1016/S1386-9477(02)00399-5
M3 - Article
SN - 1386-9477
VL - 14
SP - 259
EP - 262
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
IS - 1-2
M1 - PII S1386-9477(02)00399-5
ER -