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Photoconductance of a submicron oxidized line in surface conductive single crystalline diamond
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10.1063/1.3487785
/content/aip/journal/apl/97/11/10.1063/1.3487785
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/11/10.1063/1.3487785
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic view of the lateral band alignment of an oxidized line in between two hydrogenated diamond surface areas. The dotted line depicts the Fermi energy of the two-dimensional hole gas. Sub-bandgap optical excitation (vertical arrow) results in electrons being trapped in defect states (filled circle). (b) Conductive photoresponse of the hole gas along the -direction across such a barrier at room temperature. Triangle (diamond symbol) depicts the position of an oxidized line (a position next to it) with a lithographic width of (, , , , IIA diamond).

Image of FIG. 2.
FIG. 2.

(a) Optoelectronic response-map of an oxidized wide line (marked as dashed line) between two hydrogenated diamond surfaces . (b) as a function of with laser-spot as marked by triangle in Fig. 1(b) at (triangles) and (circles). Line is a quadratic fit . (c) as a function of with laser-spot as marked by diamond symbol in Fig. 1(b). (d) Phase of the lock-in signal as a function of the -direction across a 70 nm wide line (position indicated by dashed line) . All data are taken on IIa diamond.

Image of FIG. 3.
FIG. 3.

(a) Optoelectronic response across a wide line as a function of . (b) Switch-off behavior of for IIa (triangles) and IIIa (squares) diamond-based samples . The lines are monoexponential fits to the data.

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/content/aip/journal/apl/97/11/10.1063/1.3487785
2010-09-14
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photoconductance of a submicron oxidized line in surface conductive single crystalline diamond
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/11/10.1063/1.3487785
10.1063/1.3487785
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