量子化学計算によるポリイミドフィルムのヘテロ電荷蓄積メカニズムの検討

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2012/12/01

タイトル(英語): Discussion on Hetero Charge Accumulation in Polyimide Film by Quantum Chemical Calculation

著者名: 高田　達雄（東京都市大学），石井　智之（東京都市大学），小宮山　洋平（東京都市大学），三宅　弘晃（東京都市大学），田中　康寛（東京都市大学）

著者名(英語): Tatsuo Takada (Tokyo City University), Tomoyuki Ishii (Tokyo City University), Yohei Komiyama (Tokyo City University), Hiroaki Miyake (Tokyo City University), Yasuhiro Tanaka (Tokyo City University)

キーワード: 空間電荷，パルス静電応力（PEA）法，ポリイミドフィルム，ヘテロ電荷，量子化学計算　　space charge，pulsed electro-acoustic (PEA) method，Polyimide film，hetero charge，Quantum Chemical Calculation

要約(英語): The hetero charge accumulated in Polyimide film, which was increased with increasing applied electric field, was observed by PEA equipment. In order to explain the mechanism of hetero charge accumulation depending on electric field, we proposed a new model combined Fermi-Dirac function (the electron-hole pair generation probability between band gap (about 2.5eV) of HOMO and LUMO under thermally equilibrium condition, which was obtained by Quantum Chemical Calculation) and Pool-Frenkel effect (the electron-hole pair generating probability affected by local electric field). In the process of electric charge transfer, the electron carrier is stayed at deep trap site (the molecular part of one benzene ring with imide groups) and the hole carrier is able to drift between shallow trap sites (the molecular part of ether bond between two benzene rings). From the different transfer properties between electron and hole, we could explain the mechanism of hetero charge accumulation in Polyimide film under high electric stress.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.12 （2012） 特集：電気電子工学関連分野における教育フロンティア

本誌掲載ページ: 1151-1159 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/132/12/132_1151/_article/-char/ja/