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(Color online) (a) Luminescence image (courtesy of Element Six Ltd., UK) taken prior to contact deposition. The outline of the subsequent position of the contact is indicated, as well as areas where CL measurements were taken. (b) Panchromatic CL image of the area indicated in (a). (c) CL spectra.
(Color online) CCE map sensitive to hole transport, acquired at . The rectangular area has been used to extract the PHS spectra shown by the solid lines in Fig. 3.
CCE histograms of (a) electrons and (b) holes. The inset shows the CCE peak position of the histograms acquired over the selected area as a function of bias voltage.
CCE cross sections of various bias voltages. (a) extracted from line A and (b) extracted from line B indicated in Fig. 2.
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