論文

• Le Zhang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Dependence of the carrier transport characteristics on the buried layer thickness in ambipolar double-layer organic field-effect transistors investigated by electrical and optical measurements, Japanese Journal of Applied Physics, 52, 05DC01/1-05DC01/6, May 2013.
• Le Zhang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Direct probing of selective electron and hole accumulation processes along the channel of an ambipolar double-layer field-effect transistor by optical modulation spectroscopy, Applied Physics Letters, Vol. 100, pp. 103301/1-103301/4, Mar. 2012.
• Le Zhang, Dai Taguchi, Hiroshi Masada, Takaaki Manaka, Mitsumasa Iwamoto. Channel formation as an interfacial charging process in a pentacene field effect transistor investigated by time-resolved second harmonic generation, Japanese Journal of Applied Physics, Vol. 51, pp. 02BK08/1-02BK08/7, Feb. 2012.
• D. Taguchi, T. Shino, X. Chen, L. Zhang, J. Li, M. Weis, T. Manaka, M. Iwamoto. Analyzing photovoltaic effect of double-layer organic solar cells as a Maxwell-Wagner effect system by optical electric-field-induced second-harmonic generation measurement, J. Appl. Phys., Vol. 110, Sept. 2011.
• Le Zhang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Bulk-trap modulated Maxwell-Wagner type interfacial carrier relaxation process in a fullerene/polyimide double-layer device investigated by time-resolved second harmonic generation, Journal of Applied Physics, Vol. 110, p. 033715, Aug. 2011.
• Le Zhang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Direct Probing of the Selective Electron and Hole Accumulation at Organic/Organic interfaces in a Triple-layer Organic Device by Time-Resolved Optical Second Harmonic Generation, Applied Physics Letters, Vol. 99, p. 083301, Aug. 2011.
• Le Zhang, Dai Taguchi, Jun Li, Takaaki Manaka, Mitsumasa Iwamoto. Maxwell-Wagner type interfacial relaxation process in a double-layer device investigated by time and frequency domain approaches, 9th International Conference on Nano-Molecular Electronics (ICNME2010), Physics Procedia, Vol. 14, pp. 46–51, July 2011.
• D. Taguchi, T. Shino, X. Chen, L. Zhang, J. Li, M. Weis, T. Manaka, M. Iwamoto. Determination of Lifetime of Double-Layer CuPc/C60 Organic Solar Cells by Optical Electric-Field-Induced Second-Harmonic Generation Measurement, Physics Procedia, Vol. 14, pp. 167-171, July 2011.
• D. Taguchi, T. Shino, X. Chen, L. Zhang, J. Li, M. Weis, T. Manaka, M. Iwamoto. Analyzing carrier lifetime of double-layer organic solar cells by using optical electric-field-induced second-harmonic generation measurement, Appl. Phys. Lett., Vol. 98, May 2011.
• Le Zhang, Dai Taguchi, Jun Li, Takaaki Manaka, Mitsumasa Iwamoto. Investigation of the Voltage Establishment and Relaxation Processes in a Double-Layer Device by Time-Resolved Optical Second-Harmonic Generation, Japanese Journal of Applied Physics, Vol. 50, p. 04DK13, Apr. 2011.
• D. Taguchi, L. Zhang, J. Li, M. Weis, T. Manaka, M. Iwamoto. Direct Probing of Carrier Behavior in Electroluminescence Indium–Zinc-Oxide/N,N ’-Di-[(1-naphthyl)-N,N ’-diphenyl] -(1,1’-biphenyl)-4,4’-diamine/Tris(8-hydroxy-quinolinato)aluminum(III)/LiF/Al Diode by Time-Resolved Optical Second-Harmonic Generation, Jpn. J. Appl. Phys., Vol. 50, Apr. 2011.
• Le Zhang, Dai Taguchi, Jun Li, Takaaki Manaka, Mitsumasa Iwamoto. Transport limited interfacial carrier relaxation in a double-layer device investigated by timeresolved second harmonic generation and impedance spectroscopy, Applied Physics Letters, Vol. 98, p. 092109, Mar. 2011.
• L. Zhang, D. Taguchi, J. Li, T. Manaka, M. Iwamoto. Probing of Maxwell-Wagner type interfacial charging process in double-layer devices by time-resolved second harmonic generation, IEICE Transactions on Electronics, Vol. E94-C, No. 2, pp. 141-145, Feb. 2011.
• Dai Taguchi, Tatsunori Shino, Le Zhang, Jun Li, Martin Weis, Takaaki Manaka, Mitsumasa Iwamoto. Direct Probing of Photovoltaic Effect Generated in Double-Layer Organic Solar Cell by Electric-Field-Induced Optical Second-Harmonic Generation, Applied Physics Express,, Vol. 4, pp. 021602/1-021602/3, Jan. 2011.
• Dai Taguchi, Tatsunori Shino, Le Zhang, Jun Li, Martin Weis, Takaaki Manaka, Mitsumasa Iwamoto. Direct Probing of Photovoltaic Effect Generated in Double-Layer Organic Solar Cell by Electric-Field-Induced Optical Second-Harmonic Generation, Applied Physics Express,, Vol. 4, pp. 021602/1-021602/3, Jan. 2011.
• Jun Li, Le Zhang, Wei Ou-Yang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Study of carrier behavior in pentacene of a Au/pentacene/ferroelectric poly(vinylidene fluoridetrifluoroethylene) (P(VDF-TrFE)) /Indium tin oxide (ITO) structure by electric field induced second harmonic generation measurement, Japanese Journal of Applied Physics, Vol. 49, pp. 121601/1-121601/5, Dec. 2010.
• Le Zhang, Dai Taguchi, Jun Li, Takaaki Manaka, Mitsumasa Iwamoto. Probing of interfacial charging and discharging in double-layer devices with a polyimide blocking layer by time-resolved optical second harmonic generation, Journal of Applied Physics, Vol. 108, p. 093707, Nov. 2010.

国際会議発表 (査読有り)

• Le Zhang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Dependence of the carrier transport characteristics on the buried layer thickness in ambipolar double-layer organic field-effect transistors investigated by optical modulation spectroscopy, 2013.
• Mitsumasa Iwamoto, Takaaki Manaka, Dai Taguchi, Le Zhang. Direct probing of carrier motion in ambipolar OFET by electric field induced optical SHG and charge modulation spectroscopy, The 14th International Conference on Organized Molecular Films and Langmuir Blodgett Films (ICOMF14-LB14), 2013.
• Martin Weis, K. Vegso, P. Siffalovic, M. Jergel, E. Majkova, Keanchuan Lee, Xiangyu Chen, Le Zhang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Charge trapping in organic solar cells with plasmonic silver nanoparticles”, 2011 International conference on solid state devices and materials (SSDM2011), Sept. 2011.
• Le Zhang, Dai Taguchi, Hiroshi Masada, Takaaki Manaka, Mitsumasa Iwamoto. Analyzing diffusion-like interfacial carrier transport process in pentacene organic field-effect transistors by time-resolved second harmonic generation and impendence spectroscopy, 2011 International conference on solid state devices and materials (SSDM2011), Sept. 2011.
• Jun Li, Le Zhang, Wei Ou-Yang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Probing Carrier Accumulation at Pentacene/P(VDF-TrFE) Interface by Electric-Field-Induced Second-Harmonic Generation, 9th International Conference on Nano-Molecular Electronics (ICNME2010), Dec. 2010.
• Dai Taguchi, Tatsunori Shino, Le Zhang, Jun Li, Martin Weis, Takaaki Manaka, Mitsumasa Iwamoto. Determination of Lifetime of Double-Layer CuPc/C60 Organic Solar Cells by Optical Second-Harmonic Generation Measurement, 9th International Conference on Nano-Molecular Electronics (ICNME2010), Dec. 2010.
• Le Zhang, Dai Taguchi, Jun Li, Takaaki Manaka, Mitsumasa Iwamoto. Different interfacial carrier behaviors between a-NPD and pentacene double-layer device with a polyimide blocking-layer by time-resolved optical second harmonic generation, 2010 International Conference on Solid State Devices and Materials (SSDM2010), Sept. 2010.
• Dai Taguchi, Le Zhang, Jun Li, Takaaki Manaka, Mitsumasa Iwamoto. Direct Probing of Carrier Behavior in Electroluminescence IZO/a-NPD/Alq3/LiF/Al Diode by Time-Resolved Optical Second-Harmonic Generation, 2010 International Conference on Solid State Devices and Materials (SSDM2010), Sept. 2010.
• Le Zhang, Dai Taguchi, Jun Li, Takaaki Manaka, Mitsumasa Iwamoto. Probing of interfacial charging and discharging in double-layer device by time-resolved second harmonic generation, The 6th International Symposium on Organic Molecular Electronics (ISOME2010), June 2010.

国内会議発表 (査読有り)

• 張楽, 田口大, 間中孝彰, 岩本光正. 顕微電界誘起光第2次高調波発生法による積層型両極性トランジスタ中のキャリア伝播の直接観察, 2014.
• Le Zhang, Dai Taguchi, Takaaki Manaka, Mitsumasa Iwamoto. Optical modulation spectroscopy of ambipolar double-layer C60/pentacene field effect transistors with various buried pentacene layer thickness, 2012年(平成24年)春季 第59回応用物理学関係連合講演会, Mar. 2012.

国内会議発表 (査読なし・不明)

• ﾘｰ ｼｮﾝ, 欧 陽 威, 張 楽, 田口 大, 間中 孝彰, 岩本 光正. 変位電流測定による単層及び積層有機強誘電体コンデンサの比較, 2011年(平成23年)春季 第58回応用物理学関係連合講演会, Mar. 2011.
• Le Zhang, Dai Taguchi, Jun Li, Takaaki Manaka, Mitsumasa Iwamoto. The thickness and voltage dependent interfacial relaxation process in an ITO/Polyimide/C60/Al double-layer device investigated by time-resolved second harmonic generation, 2011年(平成23年)春季 第58回応用物理学関係連合講演会, Mar. 2011.
• 田口大, 篠竜德, 陳翔宇, 張楽, 李俊, Martin Weis, 間中孝彰, 岩本光正. 電界誘起光第２次高調波発生法による有機2層積層太陽電池のキャリアライフタイム解析, 2011年(平成23年)春季 第58回応用物理学関係連合講演会, Mar. 2011.
• 張楽, 田口大, 李俊, マーチン ワイス, 間中孝彰, 岩本光正. ポリイミド絶縁膜をブロッキング層とする２層構造有機素子の電場誘起光第２次高調波発生法による界面充放電過渡測定, 2010年(平成22年)秋季 第71回応用物理学会学術講演会, Sept. 2010.
• 田口大, 張楽, 李俊, 間中孝彰, 岩本光正. 電場誘起光第２次高調波発生法による２層有機ＥＬの過渡電荷測定とMaxwell-Wagner素子としてのキャリア挙動の解析, 2010年(平成22年)秋季 第71回応用物理学会学術講演会, Sept. 2010.

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