Atomic layer deposition of ZnS nanotubes

Abstract

We report on the growth of high-aspect-ratio (approximately > 300) zinc sulfide nanotubes with variable, precisely tunable, wall thicknesses and tube diameters into highly ordered pores of anodic alumina templates by atomic layer deposition (ALD) at temperatures as low as 75 degrees C. Various characterization techniques are employed to gain information on the composition, morphology and crystal structure of the synthesized samples. Besides practical applications, the ALD-grown tubes could be envisaged as model systems for the study of a certain class of size-dependent quantum and classical phenomena.

New energy with ZnS: novel applications for a standard transparent compound

“…ZnS can be transparent in an extremely wide energy range, with a very large transmittance from visible wavelengths to just over 12 micrometers. Indeed, among the many proposed ZnS-based device applications, one can find solar cells, liquid crystal (flat panel) displays, light-emitting diodes and sensors 1 , 3 – 5 transmission windows for visible and infrared optics, due to its optimal performances as optical material. Furthermore, various ZnS-based nanostructures have been successfully synthesized, including nanowires 1 , 3 , nanoribbons 4 and nanotubes 5 , that may be easily integrated in nanoscale devices.…”

“…Indeed, among the many proposed ZnS-based device applications, one can find solar cells, liquid crystal (flat panel) displays, light-emitting diodes and sensors 1 , 3 – 5 transmission windows for visible and infrared optics, due to its optimal performances as optical material. Furthermore, various ZnS-based nanostructures have been successfully synthesized, including nanowires 1 , 3 , nanoribbons 4 and nanotubes 5 , that may be easily integrated in nanoscale devices. Among these, particular attention has been payed to nanostructures and multilayers composed of ZnS and its companion ZnO 6 , that find relevant applications in piezotronics 7 , photovoltaics 8 – 10 and photodetectors 11 .…”

Aluminium-doped n-type ZnS nanowires as high-performance UV and humidity sensors

“…It has been widely used in light emitting diodes (LEDs), flat panel displays, injection lasers, infrared windows, and ultraviolet (UV) sensors. [2][3][4] Up to now, various ZnS nanostructures, including nanowires (NWs), 2 nanoribbons (NRs), 3 nanotubes (NTs), 4 and nanohelices, 5 have been successfully synthesized and their unique optical properties are intensively investigated. 6 Also, many efforts were devoted to explore their applications in diverse devices, such as field emitters, 7 and UV, 8,9 biologic, 10,11 and gas sensors.…”

Optical and Excitonic Properties of Crystalline ZnS Nanowires: Toward Efficient Ultraviolet Emission at Room Temperature

“…ZnS material has been conventionally synthesized by methods like catalytic technique, , atomic layer deposition, molecular beam epitaxy (MBE), pulsed laser vaporization (PLV), and vapor-phase condensation . However, in most of the previous reports, rather than the band-edge emission in the UV wavelength range, ZnS species always show broad emissions in the wavelength range of 400−550 nm at room temperature which is related to surface states or deep-level defects. − Up until now, UV emission from ZnS has been sparsely presented, such as ZnS epilayers fabricated on GaAs by MBE and NWs grown by PLV or MBE .…”