Modified silicone rubbers for fabrication and contacting of flexible suspended membranes of n-/p-GaP nanowires with single-walled carbon nanotube transparent contact

TL;DR

This paper introduces new materials and techniques for creating flexible, high-quality optoelectronic devices using GaP nanowires encapsulated in silicone membranes with novel contacts like single-walled carbon nanotubes.

Contribution

It presents a new G-coating method for encapsulating GaP nanowires in silicone membranes and demonstrates their electrical contact with carbon nanotubes for flexible device applications.

Findings

Successful encapsulation of GaP nanowires in silicone membranes.

Effective electrical contact verified by EBIC spectroscopy.

Potential for high-quality flexible optoelectronic devices.

Abstract

This work proposes new chemical and mechanical materials and techniques for III-V semiconductor NW/silicone membrane formation and optoelectronic device fabrication. Molecular beam epitaxy (MBE)-synthesized n-, p- and i-GaP NWs were encapsulated by introduced G-coating method into synthesized polydimethylsiloxane-graft-polystyrene and released from the Si growth substrate. The fabricated membranes were contacted with different materials including single-walled carbon nanotubes or ferrocenyl-containing polymethylhydrosiloxane with and without multi-walled carbon nanotubes doping. The electrical connection of the fabricated membranes was verified by electron beam induced current (EBIC) spectroscopy. The developed methods and materials can be applied for fabrication of high quality flexible inorganic optoelectronic devices.