Work

Graphene microheater for phase change chalcogenides based integrated photonic components [Invited]

Year: 2022

Type: article

Abstract: In order to effectively control the state of an active integrated photonic component based on chalcogenide phase change materials, an efficient microheater operating at low voltage is required. Here, we report on the design of a graphene based microheater. The proposed system contains two separate graphene layers between which the phase change material cell of Ge2Sb2Te5 is placed. Three distinct switching possibilities are explored, using only the bottom layer, only the top layer or both graphene layers. A detailed investigation of the heater parameters is performed to optimise switching performance. A self-consistent multiphysics simulation of the crystallization process in the phase change material cell is conducted demonstrating the switching capabilities of the proposed design.

Source: Optical Materials Express

DOI: 10.1364/ome.452153

Authors: Joaquin Faneca, Sebastian Meyer, F. Y. Gardes, Dmitry N. Chigrin

Institutions: Consejo Superior de Investigaciones Científicas, Institut de Microelectrònica de Barcelona, University of Southampton, RWTH Aachen University, DWI – Leibniz Institute for Interactive Materials

Language: English

Topic: Phase-change materials and chalcogenides

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,843

Funders: Deutsche Forschungsgemeinschaft, Horizon 2020 Framework Programme, Engineering and Physical Sciences Research Council, Agencia Estatal de Investigación