Surface excitons with a hole localized in a quantum inversion layer
Kiselev V. A., Novikov B. V., Ubushiev E. A., Utnasunov S. S., Cherednichenko A. E.
A new structure has been discovered in the photoconductivity spectrum of CdS. The spectral position and intensity of this structure are extremely sensitive to the parameters of the space-charge layer, controlled by a special illumination. This structure is attributed to the excitation of quasi-2d surface excitons with a hole localized in a quantum inversion layer.