Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia



Advanced Search

Avtometriya

2024 year, number 1

VISIBLE PHOTOLUMINESCENCE OF IN+- AND AS+-ION IMPLANTED SIO2 FILMS

I. E. Tyschenko1, Zh. Si1,2, S. G. Cherkova1, V. P. Popov1
1Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State University, Novosibirsk, Russia
Keywords: Ion implantation, SiO, InAs, nanocrystals, photoluminescence

Abstract

The room-temperature visible photoluminescence of the In+ and As+ ion-implanted SiO2 films is investigated as a function of As+ ion energy, annealing temperature, and excitation wavelength. As+ ions at the energy of 40, 80, or 135 keV and In+ ions at the energy of 50 keV, providing an average range ratio RpAs/RpIn of 1, 2 or 3, respectively, are used. The subsequent annealing is carried out at a temperature of 900 and 1100 °C. The photoluminescence spectra are excited with a laser wavelength lex = 442 and 473 nm. The photoluminescence peak near 550 nm is obtained at an excitation wavelength of 473 nm. The wavelength position of this peak is shifted to 520-530 nm at lex = 442 нм. As the RpAs/RpIn ratio increases, the photoluminescence intensity drops down, and the photoluminescence intensity ratio as a function of the annealing temperature is changed. The resultant effect is discussed in the frame of the electron and hole recombination within InAs nanocrystals.