# Optical transmittance range of High-Temperature stable phase germanium dichalcogenide (GeS2) single crystal grown by the Bridgman method

https://mdr.nims.go.jp/datasets/14a807dd-5d5e-4310-9240-8f787be6c261

## File

- [Journal of Crystal Growth 647 (2024) 127878_R.pdf](https://mdr.nims.go.jp/filesets/e50c1a31-b2cc-4ffd-81dc-9a6f4d6a4a5c/download) ([Detail](https://mdr.nims.go.jp/filesets/e50c1a31-b2cc-4ffd-81dc-9a6f4d6a4a5c.md))

## Id

14a807dd-5d5e-4310-9240-8f787be6c261

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-09-06T00:07:44.201560Z

## Updated at

2024-09-06T01:24:48.985484Z

## Published at

2026-09-01T23:25:10.395620Z

## Doi

https://doi.org/10.48505/nims.4728

## First published url

https://doi.org/10.1016/j.jcrysgro.2024.127878

## Date published

2024-09-02

## Recorded date published

2024-12

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Optical transmittance range of High-Temperature stable phase germanium dichalcogenide
    (GeS2) single crystal grown by the Bridgman method
  title_type: original
  lang: en

## Description

- description: A high-temperature (HT) stable phase of germanium dichalcogenide (GeS2)
    was grown in an evacuated quartz ampoule to investigate its transparency range.
    First, as a starting material for the crystal growth of HT-GeS2, GeS2 glass containing
    HT-GeS2 crystals was synthesized using our previously improved process for synthesizing
    polycrystalline sulfide compounds in a conventional horizontal furnace. The HT-GeS2
    crystal was grown using the Bridgman method under a temperature gradient of 20–30
    ℃/cm. The grown HT-GeS2 single crystal was easily cleaved along the growth direction,
    and this cleaved surface was identified as the (001) face using X-ray diffraction
    (XRD). Single-crystal XRD analysis confirmed the growth of an HT-GeS2 single crystal
    with a monoclinic structure (space group P21/c) and lattice parameters of a =
    6.7061(4) Å, b = 16.0877(13) Å, and c = 11.4242(11) Å, and β = 91.069 (8)°. The
    optical transmittance spectra of the HT-GeS2 single crystals were measured in
    the visible and mid-infrared (IR) regions, revealing a transparency range of 0.36–22.5
    μm. Differential thermal analysis revealed the melting point of HT-GeS2 as 840
    ± 1 ℃. The HT-GeS2 single crystal is expected to be a new candidate for IR optical
    crystal.
  description_type: abstract
  lang: und

## Creator

- name: Masaru Nakamura
  role: author
  orcid: https://orcid.org/0000-0001-9729-847X
- name: Yoshitaka Matsushita
  role: author
  orcid: https://orcid.org/0000-0002-4968-8905

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Bridgman technique
  schema: not_defined
- subject: Growth from melt
  schema: not_defined
- subject: Single crystal growth
  schema: not_defined
- subject: Sulfides
  schema: not_defined
- subject: Infrared devices
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-09-02
end_date: 2026-09-02

## Journal

- title: Journal of Crystal Growth
  issn: '00220248'
  volume: '647'
  article_number: '127878'

## Conference



## Related item



## Funding

- funder_name: Ministry of Education Culture Research and Technology

## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Fileset

- id: e50c1a31-b2cc-4ffd-81dc-9a6f4d6a4a5c
  filename: Journal of Crystal Growth 647 (2024) 127878_R.pdf
  content_type: application/pdf
  size: 1162237
  md5: 58b9fb325655a3adc52922cd5d29d0da

## Thumbnail

fileset_id: e50c1a31-b2cc-4ffd-81dc-9a6f4d6a4a5c
filename: Journal of Crystal Growth 647 (2024) 127878_R.pdf