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の水分効果の検討

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: 2013/05/01

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

著者名: 高田　達雄（東京都市大学），石井　智久（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), Tomohisa 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，へテロ電荷，水分，量子化学計算　　space charge，pulsed electro-acoustic (PEA) method，Polyimide film，hetero charge，water，Quantum Chemical Calculation

要約(英語): A lot of hetero charge was accumulated in Polyimide (PI) film containing water under high electrical stress. The positive charge was observed near cathode and the negative charge was near anode. The dynamic behavior of hetero charge complicated characteristics in space and time. A small amount of hetero charge was observed at an initial period, however the accumulated hetero charge disappeared soon. A few minutes later, a lot of hetero charge was observed again and a breakdown occurred finally. In order to analyze the complicated hetero charge behavior, the energy band structure of Polyimide (3 molecular size) which was subjected to water (some H2O) was obtained by using the Quantum Chemical Calculation. The hole-electron pair generation probability and the hole and electron hopping probability were evaluated from the values of energy gap and effective trap level respectively, which were obtained from the Quantum Chemical Calculation. It was found that water uptake narrowed the energy gap in PI, and the generation probability of hole-electron pair was increased with decreasing energy gap. In addition, the hopping probability of hole carrier also increased with decreasing the energy gap.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.133 No.5 （2013） 特集：計算電磁気学の進展とその応用

本誌掲載ページ: 313-321 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/133/5/133_313/_article/-char/ja/