Tailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation

Chalcogenide phase-change materials (PCMs) based random access memory (PCRAM) enter the global memory market as storage-class memory (SCM), holding great promise for future neuro-inspired computing and non-volatile photonic applications. The thermal stability of the amorphous phase of PCMs is a dema...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Xudong Wang, Xueyang Shen, Suyang Sun, Wei Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	phase change materials amorphous phase germanium telluride indium alloying optical contrast Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/67a734394a5b417a98d8a39b223e48b1
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:67a734394a5b417a98d8a39b223e48b1
record_format	dspace
spelling	oai:doaj.org-article:67a734394a5b417a98d8a39b223e48b12021-11-25T18:31:50ZTailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation10.3390/nano111130292079-4991https://doaj.org/article/67a734394a5b417a98d8a39b223e48b12021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3029https://doaj.org/toc/2079-4991Chalcogenide phase-change materials (PCMs) based random access memory (PCRAM) enter the global memory market as storage-class memory (SCM), holding great promise for future neuro-inspired computing and non-volatile photonic applications. The thermal stability of the amorphous phase of PCMs is a demanding property requiring further improvement. In this work, we focus on indium, an alloying ingredient extensively exploited in PCMs. Starting from the prototype GeTe alloy, we incorporated indium to form three typical compositions along the InTe-GeTe tie line: InGe<sub>3</sub>Te<sub>4</sub>, InGeTe<sub>2</sub> and In<sub>3</sub>GeTe<sub>4</sub>. The evolution of structural details, and the optical properties of the three In-Ge-Te alloys in amorphous and crystalline form, was thoroughly analyzed via ab initio calculations. This study proposes a chemical composition possessing both improved thermal stability and sizable optical contrast for PCM-based non-volatile photonic applications.Xudong WangXueyang ShenSuyang SunWei ZhangMDPI AGarticlephase change materialsamorphous phasegermanium tellurideindium alloyingoptical contrastChemistryQD1-999ENNanomaterials, Vol 11, Iss 3029, p 3029 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	phase change materials amorphous phase germanium telluride indium alloying optical contrast Chemistry QD1-999
spellingShingle	phase change materials amorphous phase germanium telluride indium alloying optical contrast Chemistry QD1-999 Xudong Wang Xueyang Shen Suyang Sun Wei Zhang Tailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation
description	Chalcogenide phase-change materials (PCMs) based random access memory (PCRAM) enter the global memory market as storage-class memory (SCM), holding great promise for future neuro-inspired computing and non-volatile photonic applications. The thermal stability of the amorphous phase of PCMs is a demanding property requiring further improvement. In this work, we focus on indium, an alloying ingredient extensively exploited in PCMs. Starting from the prototype GeTe alloy, we incorporated indium to form three typical compositions along the InTe-GeTe tie line: InGe<sub>3</sub>Te<sub>4</sub>, InGeTe<sub>2</sub> and In<sub>3</sub>GeTe<sub>4</sub>. The evolution of structural details, and the optical properties of the three In-Ge-Te alloys in amorphous and crystalline form, was thoroughly analyzed via ab initio calculations. This study proposes a chemical composition possessing both improved thermal stability and sizable optical contrast for PCM-based non-volatile photonic applications.
format	article
author	Xudong Wang Xueyang Shen Suyang Sun Wei Zhang
author_facet	Xudong Wang Xueyang Shen Suyang Sun Wei Zhang
author_sort	Xudong Wang
title	Tailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation
title_short	Tailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation
title_full	Tailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation
title_fullStr	Tailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation
title_full_unstemmed	Tailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation
title_sort	tailoring the structural and optical properties of germanium telluride phase-change materials by indium incorporation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/67a734394a5b417a98d8a39b223e48b1
work_keys_str_mv	AT xudongwang tailoringthestructuralandopticalpropertiesofgermaniumtelluridephasechangematerialsbyindiumincorporation AT xueyangshen tailoringthestructuralandopticalpropertiesofgermaniumtelluridephasechangematerialsbyindiumincorporation AT suyangsun tailoringthestructuralandopticalpropertiesofgermaniumtelluridephasechangematerialsbyindiumincorporation AT weizhang tailoringthestructuralandopticalpropertiesofgermaniumtelluridephasechangematerialsbyindiumincorporation
_version_	1718411021315473408

Tailoring the Structural and Optical Properties of Germanium Telluride Phase-Change Materials by Indium Incorporation

Ejemplares similares