alexa Defects and recombination in microcrystalline silicon


Journal of Electrical & Electronic Systems

Author(s): Klaus Lips, P Kanschat, W Fuhs

Abstract Share this page

The paper addresses the defect structure of microcrystalline silicon, μc-Si:H. Electron spin resonance (ESR) techniques are employed to study the nature and energy distribution of paramagnetic states in a large variety of undoped and doped μc-Si:H samples prepared by various methods under different deposition conditions. A qualitative model for the density of states distribution in the energy gap is developed which is dominated by two kinds of dangling bonds and bandtail states at both band edges. In phosphorus-doped samples, ESR reveals a metal–insulator transition at a phosphorus concentration of 4×1018 cm−3. Light-induced ESR and electrically detected magnetic resonance show that at low temperatures recombination is dominated by tunneling transitions from the bandtail states into neutral dangling bonds. Apparently, at higher temperatures, direct capture from conducting states prevails. The results are discussed considering the heterogeneous structure of this material.

This article was published in Solar Energy Materials and Solar Cells and referenced in Journal of Electrical & Electronic Systems

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

1-702-714-7001Extn: 9037

Business & Management Journals


1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

1-702-714-7001 Extn: 9042

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version