View in EDS HTML Full Text PDF Full Text

Unveiling the Mechanics Behind Polyimide's Friction-Greening Phenomenon.

Saved in:
Bibliographic Details
Title: Unveiling the Mechanics Behind Polyimide's Friction-Greening Phenomenon.
Authors: Li, Zhipeng1,2 (AUTHOR) lizhipeng-b11@boe.com.cn, Ma, Dawei1 (AUTHOR) lihaowen@boe.com.cn, Li, Haowen1 (AUTHOR) zhaobaojie@boe.com.cn, Zhao, Baojie1 (AUTHOR) huangyinglong@boe.com.cn, Huang, Yinglong1 (AUTHOR), Li, Yanbo2 (AUTHOR) lizhipeng-b11@boe.com.cn
Source: Polymers (20734360). Dec2024, Vol. 16 Issue 23, p3253. 8p.
Subjects: Energy levels (Quantum mechanics), Small-angle scattering, Threshold voltage, Photoluminescence, Dielectrics
Abstract: Polyimide (PI) has been widely used as a flexible substrate in the OLED display industry to achieve folding and other functions. However, it has unintended side effects, such as friction-greening, a green screen phenomenon caused by friction after prolonged usage. This is related to drifting TFT characteristics caused by charge accumulating in the PI in combination with the high efficiency of green pixels. In this study, the mechanism of the influence of PI structure on friction-greening was investigated. Increasing the process temperature from 350 °C to 470 °C, the chain segment structure within the PI became more regularized. Thus, the material had higher conductivity and shallower trap energy levels, which was confirmed by X-ray small angle scattering, dielectric, photoluminescence, and other methods. Under prolonged discharge conditions, less charge accumulated within PI, thus effectively mitigating the threshold voltage drift of the thin-film transistor (TFT). These results will contribute to the further optimization of the process and the development of PI materials. [ABSTRACT FROM AUTHOR]
Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: egs
DbLabel: Engineering Source
An: 181658393
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Unveiling the Mechanics Behind Polyimide's Friction-Greening Phenomenon.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Li%2C+Zhipeng%22">Li, Zhipeng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> lizhipeng-b11@boe.com.cn</i><br /><searchLink fieldCode="AR" term="%22Ma%2C+Dawei%22">Ma, Dawei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lihaowen@boe.com.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Haowen%22">Li, Haowen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhaobaojie@boe.com.cn</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Baojie%22">Zhao, Baojie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> huangyinglong@boe.com.cn</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Yinglong%22">Huang, Yinglong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Yanbo%22">Li, Yanbo</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> lizhipeng-b11@boe.com.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Dec2024, Vol. 16 Issue 23, p3253. 8p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Energy+levels+%28Quantum+mechanics%29%22">Energy levels (Quantum mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Small-angle+scattering%22">Small-angle scattering</searchLink><br /><searchLink fieldCode="DE" term="%22Threshold+voltage%22">Threshold voltage</searchLink><br /><searchLink fieldCode="DE" term="%22Photoluminescence%22">Photoluminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectrics%22">Dielectrics</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Polyimide (PI) has been widely used as a flexible substrate in the OLED display industry to achieve folding and other functions. However, it has unintended side effects, such as friction-greening, a green screen phenomenon caused by friction after prolonged usage. This is related to drifting TFT characteristics caused by charge accumulating in the PI in combination with the high efficiency of green pixels. In this study, the mechanism of the influence of PI structure on friction-greening was investigated. Increasing the process temperature from 350 °C to 470 °C, the chain segment structure within the PI became more regularized. Thus, the material had higher conductivity and shallower trap energy levels, which was confirmed by X-ray small angle scattering, dielectric, photoluminescence, and other methods. Under prolonged discharge conditions, less charge accumulated within PI, thus effectively mitigating the threshold voltage drift of the thin-film transistor (TFT). These results will contribute to the further optimization of the process and the development of PI materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=181658393
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/polym16233253
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 3253
    Subjects:
      – SubjectFull: Energy levels (Quantum mechanics)
        Type: general
      – SubjectFull: Small-angle scattering
        Type: general
      – SubjectFull: Threshold voltage
        Type: general
      – SubjectFull: Photoluminescence
        Type: general
      – SubjectFull: Dielectrics
        Type: general
    Titles:
      – TitleFull: Unveiling the Mechanics Behind Polyimide's Friction-Greening Phenomenon.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Li, Zhipeng
      – PersonEntity:
          Name:
            NameFull: Ma, Dawei
      – PersonEntity:
          Name:
            NameFull: Li, Haowen
      – PersonEntity:
          Name:
            NameFull: Zhao, Baojie
      – PersonEntity:
          Name:
            NameFull: Huang, Yinglong
      – PersonEntity:
          Name:
            NameFull: Li, Yanbo
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 12
              Text: Dec2024
              Type: published
              Y: 2024
          Identifiers:
            – Type: issn-print
              Value: 20734360
          Numbering:
            – Type: volume
              Value: 16
            – Type: issue
              Value: 23
          Titles:
            – TitleFull: Polymers (20734360)
              Type: main
ResultId 1