JP4901137B2 - 機能性分子素子及び機能性分子装置 - Google Patents
機能性分子素子及び機能性分子装置 Download PDFInfo
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Description
電界の印加により立体構造が変化して機能を発現する分子素子の機能の1例として、スイッチング動作が考えられる。
ここでは、共役系分子(主鎖)としてオリゴフルオレンを用い、分子の長軸方向に双極子モーメントを有するペンダント分子(側鎖)として4-ペンチル-4'-シアノビフェニル(以下、5CBと略記することもある。)を用いて、これらを組み込んだ電界効果型分子デバイス及びその作製工程を説明する。
によって封止して、電界効果型分子デバイス21を完成する。
動作の単位が分子1個、電子1個であるので、基本的に低消費電力で動作し、発熱量 が少ないので、高集積化しても発熱による問題が起こりにくい。
最近の液晶の高速応答性の改善に見られるように、材料や構造を工夫することにより 、従来の無機半導体結晶以上の高速応答性も期待できる。
通常の有機化合物の合成法によって機能性分子素子用の有機分子を合成できるので、 無機半導体の製造プロセスで使われるような人体や環境に有害な試薬等を必要としない 。
多様な有機分子の特性を生かせば、例えば味覚センサやにおいセンサ等、従来実現で きなかった機能を実現できる。
次に、本発明の好ましい実施例として図3及び図4に示した電界効果型分子デバイス21を作製した例をより具体的に説明する。
共役系分子(主鎖)として、側鎖に永久双極子モーメントを持たないエチルヘキシルオリゴフルオレン(重合度20程度)を組み込んだ図4と同様の電界効果型分子デバイスを次のようにして作製した。
共役系分子(主鎖)がオリゴフルオレンからなり、分子の長軸方向に双極子モーメントを有するペンダント分子(側鎖)として4-ペンチル-4'-シアノビフェニル(5CB)を用いた上述の実施の形態2で示した分子を使用し、これを組み込んだ電界効果型分子デバイスを上述の比較例1で述べたと同様の方法で作製した。
3…誘電率異方性又は双極子モーメントを有するペンダント分子、
21…電界効果型分子デバイス、
31…第1の基板(制御電界印加用電極、高濃度にドープされたシリコン)、
32…絶縁膜(酸化シリコン膜)、33、34…導電度測定用くし形電極、
35…第2の基板(ガラス基板)、
36…ITO電極(もう1つの制御電界印加用電極)、37…絶縁膜、
38…封止材、41…制御電界印加用電源、42…導電性測定用電源、43…電流計
Claims (12)
- 環状共役系分子が複数結合してなる共役オリゴマー又は共役ポリマーと、前記環状共役系分子のそれぞれに結合し、誘電率異方性又は/及び双極子モーメントを有する複数のペンダント分子とからなる系を用い、
電界未印加時には、前記ペンダント分子に結合している前記環状共役系分子とこれに 隣り合う前記環状共役系分子との二面角がねじれていることにより、機能性分子が高抵 抗の状態であり、かつ、前記ペンダント分子に作用する電界を印加することによって、 前記二面角が変化して平面化することにより、機能性分子の導電性が向上する、
機能性分子素子。 - 前記環状共役系分子からなる主鎖に、前記ペンダント分子からなる側鎖が共有結合している、請求項1に記載した機能性分子素子。
- 前記環状共役系分子がフルオレン骨格を有する、請求項2に記載した機能性分子素子。
- 前記ペンダント分子がシアノビフェニル骨格を有する、請求項2に記載した機能性分子素子。
- 環状共役系分子が複数結合してなる共役オリゴマー又は共役ポリマーと、前記環状共役系分子のそれぞれに結合し、誘電率異方性又は/及び双極子モーメントを有する複数のペンダント分子とからなる系と;前記ペンダント分子に電界を印加する電界印加手段と;前記環状共役系分子に対する入出力手段と;を有し、
電界未印加時には、前記ペンダント分子に結合している前記環状共役系分子とこれに 隣り合う前記環状共役系分子との二面角がねじれていることにより、機能性分子が高抵 抗の状態であり、かつ、前記ペンダント分子に作用する電界を印加することによって、 前記二面角が変化して平面化することにより、機能性分子の導電性が向上するように構 成された、
機能性分子装置。 - 前記ペンダント分子が前記電界を印加するための電極上で配向しており、前記環状共役系分子が少なくとも対向電極間に配置されて、この対向電極の少なくとも一方から前記電界に対応した出力が取り出される、請求項5に記載した機能性分子装置。
- 前記環状共役系分子によって導電路が形成され、前記ペンダント分子に作用する前記電界の変化によって、前記導電路の導電性が制御される、請求項6に記載した機能性分子装置。
- 前記ペンダント分子に作用する前記電界の変化によって、このペンダント分子の電界方向との位置関係が変化し、このペンダント分子と前記環状共役系分子とがなす角度が変化する、請求項7に記載した機能性分子装置。
- 第1の電極上に絶縁層が設けられ、この絶縁層の上に互いに接触しないように第2の電極と第3の電極が形成され、少なくともこれらの第2の電極と第3の電極との間に前記環状共役系分子と前記ペンダント分子との結合体が配され、この結合体の前記ペンダント分子の上に直接若しくは絶縁層を介して第4の電極が設けられた、請求項7に記載した機能性分子装置。
- 前記環状共役系分子からなる主鎖に、前記ペンダント分子からなる側鎖が共有結合している、請求項5に記載した機能性分子装置。
- 前記環状共役系分子がフルオレン骨格を有する、請求項10に記載した機能性分子装置。
- 前記ペンダント分子がシアノビフェニル骨格を有する、請求項10に記載した機能性分子装置。
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JP2005172628A JP4901137B2 (ja) | 2004-06-24 | 2005-06-13 | 機能性分子素子及び機能性分子装置 |
CN2005800279004A CN101006592B (zh) | 2004-06-24 | 2005-06-24 | 功能分子元件和功能分子器件 |
EP05753301A EP1775782B1 (en) | 2004-06-24 | 2005-06-24 | Functional molecular device |
US11/571,136 US8692231B2 (en) | 2004-06-24 | 2005-06-24 | Functional molecular element and functional molecular device |
PCT/JP2005/011669 WO2006001394A1 (ja) | 2004-06-24 | 2005-06-24 | 機能性分子素子及び機能性分子装置 |
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JP4901137B2 true JP4901137B2 (ja) | 2012-03-21 |
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EP (1) | EP1775782B1 (ja) |
JP (1) | JP4901137B2 (ja) |
CN (1) | CN101006592B (ja) |
WO (1) | WO2006001394A1 (ja) |
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JP2008124360A (ja) * | 2006-11-15 | 2008-05-29 | Sony Corp | 機能性分子素子及びその製造方法、並びに機能性分子装置 |
DE102008018570A1 (de) * | 2008-04-12 | 2009-10-15 | Forschungszentrum Karlsruhe Gmbh | Verwendung eines Moleküls als Schaltelement |
JP5181962B2 (ja) | 2008-09-19 | 2013-04-10 | ソニー株式会社 | 分子素子およびその製造方法ならびに集積回路装置およびその製造方法ならびに三次元集積回路装置およびその製造方法 |
WO2011024171A1 (en) * | 2009-08-27 | 2011-03-03 | Yeda Research And Development Co. Ltd | Oligo- and polyfurans, preparation and uses thereof |
CN110308336B (zh) * | 2019-07-04 | 2021-05-07 | 中国人民解放军63660部队 | 一种电介质加载D-dot电场测量传感器 |
JP2023081627A (ja) * | 2021-12-01 | 2023-06-13 | キオクシア株式会社 | 有機分子メモリ |
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US5034296A (en) * | 1989-04-03 | 1991-07-23 | Xerox Corporation | Photoconductive imaging members with fluorene polyester hole transporting layers |
US5804100A (en) * | 1995-01-09 | 1998-09-08 | International Business Machines Corporation | Deaggregated electrically conductive polymers and precursors thereof |
US6020426A (en) * | 1996-11-01 | 2000-02-01 | Fuji Xerox Co., Ltd. | Charge-transporting copolymer, method of forming charge-transporting copolymer, electrophotographic photosensitive body, and electrophotographic device |
JPH111625A (ja) * | 1997-06-12 | 1999-01-06 | Mitsubishi Chem Corp | 水溶性錯体及びそれを利用した造影剤 |
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JP4701372B2 (ja) | 2000-02-23 | 2011-06-15 | 独立行政法人産業技術総合研究所 | 新規なターフェニル骨格含有硫黄化合物 |
US6665042B1 (en) * | 2000-05-16 | 2003-12-16 | The University Of Rochester | Electrically switchable polymer liquid crystal and polymer birefringent flake in fluid host systems and optical devices utilizing same |
WO2002035580A2 (en) | 2000-10-24 | 2002-05-02 | Molecular Electronics Corporation | Three-terminal field-controlled molecular devices |
US6701035B2 (en) | 2000-12-14 | 2004-03-02 | Hewlett-Packard Development Company, L.P. | Electric-field actuated chromogenic materials based on molecules with a rotating middle segment for applications in photonic switching |
US6805817B2 (en) * | 2000-12-14 | 2004-10-19 | Hewlett-Packard Development Company, L.P. | Molecular devices activated by an electric field for electronic ink and other visual display |
US6751365B2 (en) | 2000-12-14 | 2004-06-15 | Hewlett-Packard Development Company, L.P. | E-field-modulated bistable molecular mechanical device |
US6855950B2 (en) * | 2002-03-19 | 2005-02-15 | The Ohio State University | Method for conductance switching in molecular electronic junctions |
JP2002363551A (ja) * | 2001-06-08 | 2002-12-18 | Toyo Ink Mfg Co Ltd | 有機エレクトロルミネッセンス素子用材料およびそれを使用した有機エレクトロルミネッセンス素子 |
JP2003209305A (ja) * | 2001-11-13 | 2003-07-25 | Hewlett Packard Co <Hp> | 電界調整式双安定分子システム |
JP2003218360A (ja) | 2002-01-23 | 2003-07-31 | Seiko Epson Corp | 分子膜誘電体デバイス |
JP4635410B2 (ja) * | 2002-07-02 | 2011-02-23 | ソニー株式会社 | 半導体装置及びその製造方法 |
EP1577962A4 (en) * | 2002-12-25 | 2009-08-05 | Sony Corp | FUNCTIONAL MOLECULAR ELEMENT AND FUNCTIONAL MOLECULAR EQUIPMENT |
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CN101006592B (zh) | 2010-09-01 |
US20070241324A1 (en) | 2007-10-18 |
EP1775782A1 (en) | 2007-04-18 |
EP1775782A4 (en) | 2009-07-22 |
EP1775782B1 (en) | 2011-11-02 |
US8692231B2 (en) | 2014-04-08 |
CN101006592A (zh) | 2007-07-25 |
WO2006001394A1 (ja) | 2006-01-05 |
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