Regensburg 2019 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 8: Interfaces and Thin Films (joint session CPP/DY)

CPP 8.5: Vortrag

Montag, 1. April 2019, 16:15–16:30, H14

Templated electrodeposition of nanoscale semiconductors — •Li Shao¹, Andrew Hector¹, Philip Bartlett¹, Francis Sweeney², Samantha Soule¹, Richard Beanland², and Gilles Moehl¹ — ¹Chemistry, Southampton University, University Rd, SO17 1BJ, United Kingdom — ²Department of Physics, University of Warwick, Coventry CV4 7AL

The Advanced Devices by ElectroPlaTing (ADEPT) project, an interdisciplinary research project funded by the EPSRC (EP/N035437/1), aims to develop new techniques and materials for thermoelectric devices, infrared detection, and phase change memory, by using electrodeposition methods. In previous work, Sn nanowires were deposited into mesoporous silica templates with pores of 1.5nm diameter.1 In this work, well-ordered mesoporous silica films with 3D pore structures were prepared by the evaporation-induced self-assembly (EISA) method. Using these silica films as templates, tellurium was deposited into the 3D pores. Grazing incidence small-angle X-ray scattering (GISAXS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize film nanostructures before and after electrodeposition. Programmes based on the distorted wave Born approximation (DWBA) were used for analysis and simulation of the 2D diffraction patterns from GISAXS. The patterns show that silica films with different structures including cubic, hexagonal and orthorhombic were synthesized. 1.*Philip N. Bartlett et al, Nano Lett. 2018, 18, 941*947. Type: Talk Topic: Thin films division Email: L.Shao@soton.ac.uk