# Design of transparent thermal insulating thin films of nanoscale-layered oxides

https://mdr.nims.go.jp/datasets/1b7d5551-2376-4399-bc4c-8b8b91e03d9a

## File

- [manuscript_jstp2021.pdf](https://mdr.nims.go.jp/filesets/314d297d-f958-4f71-a7e6-42540d83d8fe/download) ([Detail](https://mdr.nims.go.jp/filesets/314d297d-f958-4f71-a7e6-42540d83d8fe.md))

## Id

1b7d5551-2376-4399-bc4c-8b8b91e03d9a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-03-13T07:40:24.619138Z

## Updated at

2023-03-16T06:54:46.296423Z

## Published at

2023-03-16T07:50:24.895201Z

## Doi

https://doi.org/10.48505/nims.3868

## First published url

http://jstp-symp.org/symp2021/

## Date published



## Recorded date published



## Resource type

conference_presentation

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: ナノスケールの層状酸化物を用いた透明断熱薄膜の設計
  title_type: alternative
  lang: ja
- title: Design of transparent thermal insulating thin films of nanoscale-layered
    oxides
  title_type: original
  lang: en

## Description

- description: In industrial application, one of the important features for thermal
    insulating films in electronic devices is transparency. In order to expand the
    potential for industrial application, both high transparency and thermal insulating
    performance must be pursued. For discovery of the material systems which satisfy
    both properties, the extrapolative search by adaptive learning is applied combining
    with the previous proposed ITR model.  The reduction in thermal conductivity is
    related to the high density of interfaces which have high ITR rather than to the
    change of intrinsic thermal conductivity. The consistent thermal conductivity
    of TiO2 of 1.56 W/mK from 5 nm to 50 nm is observed. The selected material system
    of SiO2/TiO2, nanoscale-layered thin films synthesized by sputtering, show ultra-low
    thermal conductivity of 0.23 W/mK and high transparency (>90%, 400-780 nm). The
    strong substrate dependence is also found that the additional Ti2O3 phase forms
    as growing on Si substrate and reduces the thermal resistance as relative to the
    one on quartz substrate. Compared to the current transparent thermal insulating
    materials, aerogel or polypropylene, the proposed SiO2/TiO2 composites have higher
    transparency, higher robusticity, good adaptivity to electronics, and lower cost.
  description_type: abstract
  lang: eng

## Creator

- name: WU, Yen-Ju
  role: author
  orcid: https://orcid.org/0000-0003-2647-3407
  organization: National Institute for Materials Science
  department: Research and Services Division of Materials Data and Integrated System/Data-driven
    Inorganic Materials Group
  ror: https://ror.org/026v1ze26
- name: XU, Yibin
  role: author
  orcid: https://orcid.org/0000-0001-8600-8748
  organization: National Institute for Materials Science
  department: Research and Services Division of Materials Data and Integrated System
  ror: https://ror.org/026v1ze26

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## Keyword

- subject: thin film, oxides, thermal insulating, nanoscale
  schema: not_defined

## Rights

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

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## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: 第42回日本熱物性シンポジウム開催報告
start_date: 2021-10-25
end_date: 2021-10-27
identifier: http://jstp-symp.org/symp2021/

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## Specimen



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## Fileset

- id: 314d297d-f958-4f71-a7e6-42540d83d8fe
  filename: manuscript_jstp2021.pdf
  content_type: application/pdf
  size: 385696
  md5: d5046e2e81996e42ec7f1269a1638f5e

## Thumbnail

fileset_id: 314d297d-f958-4f71-a7e6-42540d83d8fe
filename: manuscript_jstp2021.pdf