Capacitively-detected magnetic resonance in hydrogenated amorphous silicon solar cells

Martin S. Brandt; Ralph T. Neuberger; Martin W. Bayerl; Martin Stutzmann

doi:10.1143/jjap.38.l1172

Capacitively-detected magnetic resonance in hydrogenated amorphous silicon solar cells

Martin S. Brandt, Ralph T. Neuberger, Martin W. Bayerl, Martin Stutzmann

TUM Emeriti of Excellence

Walter Schottky Institut

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Spin-dependent transport processes in hydrogenated amorphous silicon (a-Si:H) solar cells at high frequencies are studied with capacitively-detected magnetic resonance (CDMR). A resonant increase of the capacitance at room temperature is found with a g-factor of 2.0055, characteristic for the spin-dependent trapping of electrons at neutral dangling bonds. It is shown that with the help of spin-dependent capacitance measurements quantitative information on the defect density in the device can be obtained, a particular advantage over conventional electrically detected magnetic resonance (EDMR) where resonant changes of the dc conductivity are measured.

Original language	English
Pages (from-to)	L1172-L1174
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	38
Issue number	10 B
DOIs	https://doi.org/10.1143/jjap.38.l1172
State	Published - 15 Oct 1999

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abstract = "Spin-dependent transport processes in hydrogenated amorphous silicon (a-Si:H) solar cells at high frequencies are studied with capacitively-detected magnetic resonance (CDMR). A resonant increase of the capacitance at room temperature is found with a g-factor of 2.0055, characteristic for the spin-dependent trapping of electrons at neutral dangling bonds. It is shown that with the help of spin-dependent capacitance measurements quantitative information on the defect density in the device can be obtained, a particular advantage over conventional electrically detected magnetic resonance (EDMR) where resonant changes of the dc conductivity are measured.",

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T1 - Capacitively-detected magnetic resonance in hydrogenated amorphous silicon solar cells

AU - Brandt, Martin S.

AU - Neuberger, Ralph T.

AU - Bayerl, Martin W.

AU - Stutzmann, Martin

PY - 1999/10/15

Y1 - 1999/10/15

N2 - Spin-dependent transport processes in hydrogenated amorphous silicon (a-Si:H) solar cells at high frequencies are studied with capacitively-detected magnetic resonance (CDMR). A resonant increase of the capacitance at room temperature is found with a g-factor of 2.0055, characteristic for the spin-dependent trapping of electrons at neutral dangling bonds. It is shown that with the help of spin-dependent capacitance measurements quantitative information on the defect density in the device can be obtained, a particular advantage over conventional electrically detected magnetic resonance (EDMR) where resonant changes of the dc conductivity are measured.

AB - Spin-dependent transport processes in hydrogenated amorphous silicon (a-Si:H) solar cells at high frequencies are studied with capacitively-detected magnetic resonance (CDMR). A resonant increase of the capacitance at room temperature is found with a g-factor of 2.0055, characteristic for the spin-dependent trapping of electrons at neutral dangling bonds. It is shown that with the help of spin-dependent capacitance measurements quantitative information on the defect density in the device can be obtained, a particular advantage over conventional electrically detected magnetic resonance (EDMR) where resonant changes of the dc conductivity are measured.

UR - http://www.scopus.com/inward/record.url?scp=0033319029&partnerID=8YFLogxK

U2 - 10.1143/jjap.38.l1172

DO - 10.1143/jjap.38.l1172

M3 - Article

AN - SCOPUS:0033319029

SN - 0021-4922

VL - 38

SP - L1172-L1174

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

IS - 10 B

ER -

Capacitively-detected magnetic resonance in hydrogenated amorphous silicon solar cells

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