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On the transition between space-charge-free and space-charge-limited conduction in diamond
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
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2011 (English)In: Solid State Sciences, ISSN 1293-2558, E-ISSN 1873-3085, Vol. 13, no 5, 1065-1067 p.Article in journal (Refereed) Published
Abstract [en]

Carrier transport in a high-purity single-crystalline CVD diamond sample was studied using the Time-of-Flight technique with optical UV excitation. By varying the intensity of the optical excitation over four orders of magnitude, the transition between space-charge-free and space-charge-limited hole conduction in diamond is directly observed. Experimentally, we find that even a relatively small injected charge appreciably affects the drift velocity measurements. To achieve a relative error in drift velocity less than 1%, the injected charge has to be less than 0.01 CU, where C is the sample capacitance and U the applied bias.

Place, publisher, year, edition, pages
2011. Vol. 13, no 5, 1065-1067 p.
Keyword [en]
Time-of-Flight, CVD diamond, Charge carrier transport, Space-charge-free transport, Space-charge-limited transport
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Science of Electricity
Identifiers
URN: urn:nbn:se:uu:diva-154882DOI: 10.1016/j.solidstatesciences.2011.01.018ISI: 000291081900040OAI: oai:DiVA.org:uu-154882DiVA: diva2:422653
Available from: 2011-06-13 Created: 2011-06-13 Last updated: 2017-12-11Bibliographically approved

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Isberg, JanGabrysch, MarkusMajdi, Saman

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