Multiple conduction paths in boron delta-doped diamond structures.
APPL PHYS LETT
, Article 052107. 10.1063/1.3075860.
Impedance spectroscopy has been used to investigate conductivity within boron-doped diamond in an intrinsic/delta-doped/intrinsic (i-delta-i) multilayer structure. For a 5 nm thick delta layer, three conduction pathways are observed, which can be assigned to transport within the delta layer and to two differing conduction paths in the i-layers adjoining the delta layer. For transport in the i-layers, thermal trapping/detrapping processes can be observed, and only at the highest temperature investigated (673 K) can transport due to a single conduction process be seen. Impedance spectroscopy is an ideal nondestructive tool for investigating the electrical characteristics of complex diamond structures.
|Title:||Multiple conduction paths in boron delta-doped diamond structures|
|Keywords:||boron, diamond, electrical conductivity, elemental semiconductors, multilayers, IMPEDANCE MEASUREMENTS, FILMS, FABRICATION, TRANSISTORS|
|UCL classification:||UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Engineering Science
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