Aligning tetracyanoplatinate thin films

TL;DR

This paper demonstrates a zone-casting method to produce well-aligned tetracyanoplatinate thin films with significant surface coverage, crystal alignment, and characteristic intrachain distances, advancing thin film fabrication techniques.

Contribution

It introduces a novel zone-casting derivative method for creating highly aligned tetracyanoplatinate thin films with controlled orientation and coverage.

Findings

Films are over 50% surface covered with aligned wires.

Crystal wires can exceed 100 μm in length.

X-ray diffraction confirms intrachain Pt-Pt distance and orientation.

Abstract

By using a zone-casting derivative method it is possible to create well-aligned 200 nm thin films of tetracyano platinate crystal wires, which cover more than 50% of the surface of the substrate. The aligned crystal wires deviate only slightly from the casting direction and can each exceed 100 um in length. Grazing incidence X-ray diffraction shows a 3.5 {\AA} periodicity corresponding to the intrachain Pt-Pt distance found in single crystals and a 110 (crystal) orientation along the surface normal.