A. Ney, R. Rajaram, et al.
Journal of Magnetism and Magnetic Materials
We have used a scanning-tunneling-microscope tip as a source of both electrons and holes to study injection luminescence from CdS(112»0) surfaces cleaved in UHV. Band-gap radiation and emission from radiative deep levels are resolved in optical spectra. Isochromat photon-intensity spectra exhibit, as a function of negative tip voltage, discrete steps which are discussed in terms of pair-creation thresholds. For positive tip polarity, hole creation in the valence band results in a continuous increase in the luminescence. Spatial maps of the resulting integrated light intensity acquired simultaneously with the conventional topographs reveal subnanometer-scale image contrasts which are attributed to defects, such as dislocations or radiative deep levels. © 1992 The American Physical Society..
A. Ney, R. Rajaram, et al.
Journal of Magnetism and Magnetic Materials
Revanth Kodoru, Atanu Saha, et al.
arXiv
William Hinsberg, Joy Cheng, et al.
SPIE Advanced Lithography 2010
Q.R. Huang, Ho-Cheol Kim, et al.
Macromolecules