Wavelength dependence of laser-induced phase transformations in semiconductor quantum dots Academic Article

abstract

• We study the effect of wavelength on the laser-induced phase transformation in semiconductor quantum dots. In our earlier report [Yakovlev et al., Appl. Phys. Lett. 76, 2050 (2000)], we discovered that a nanosecond pulse of 532 nm radiation results in a phase transformation of CdS nanocrystals from an orthorhombic to cubic phase. In this study, we find that irradiation with the pulse of a different wavelength (355 nm) results in a completely different transformation to a hexagonal wurtzite phase and a significant broadening of nanocrystal size distribution. The nanocrystal stoichiometry remained unchanged by the laser irradiation, as verified by energy dispersive x-ray spectroscopy. 2001 American Institute of Physics.

authors

• Yakovlev, Vladislav

published proceedings

• APPLIED PHYSICS LETTERS

author list (cited authors)

• Gajdardziska-Josifovska, M., Lazarov, V., Reynolds, J., & Yakovlev, V. V.

citation count

• 19

complete list of authors

• Gajdardziska-Josifovska, M||Lazarov, V||Reynolds, J||Yakovlev, VV

publication date

• May 2001

publisher

• AIP Publishing  Publisher

published in

• Applied Physics Letters  Journal

Digital Object Identifier (DOI)

• 10.1063/1.1347226

start page

• 3298

end page

• 3300

volume

• 78

issue

• 21

URL

• http%3A%2F%2Fdx.doi.org%2F10.1063%2F1.1347226