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News archive
2024/03/28 New article published. "Angular Distribution Analysis of Permanent Dipole Moments in Amorphous Organic Semiconductor Film with Large Spontaneous Orientation Polarization", The Journal of Physical Chemistry C. This work is a collaboration with Prof. Yokoyama (Yamagata University).2024/03/26 1 graduate student received a doctor's degree in engineering. 1 graduate student received a master's degree in engineering. 6 undergraduate students received a bachelor's degree in engineering.
2024/01/12 Shotaro Nakano (M1) won a student presentation award in the 37th meeting of Japan OLED forum
2023/08/14 New article published. "Light-Emitting Electrochemical Cells Based on Nanogap Electrodes", Nano Letters. This work is a collaboration with National Institute of Information and Communications Technology.
2023/04/24 9 undergraduate students joined.
2023/03/26 9 undergraduate students received a bachelor's degree in engineering.
2022/12/24 A collaboration work with Prof. Yokoyama (Yamagata University) won the IDW '22 Best Paper Award! 2022/11/02 New article published. "Electrically induced light emission via nanoscale vacuum discharge in nanogap electrodes without luminescent molecules", Journal of Applied Physics. This work is a collaboration with National Institute of Information and Communications Technology.
2022/10/25 New article published. "Charge-Carrier Dynamics and Exciton-Polaron Quenching Studied Using Simultaneous Observations of Displacement Current and Photoluminescence Intensity", The Journal of Physical Chemistry C.
2022/08/16 New article published. "Controlling charge accumulation properties of organic light-emitting diodes using dipolar doping of hole transport layers", Advanced Optical Materials (Open Access ). This work is a collaboration with University of Augsburg.2022/06/29 Our review paper on SOP is featured on Materials Today. 2022/06/08 New article published (Invited review ). "Understanding spontaneous orientation polarization of amorphous organic semiconducting films and its application to devices", Synthetic Metals. Open Access for 6 months! This work is a collaboration with Chiba University and University of Augsburg.2022/04/28 7 undergraduate students joined.
2022/03/26 3 graduate students received a master's degree in engineering. 7 undergraduate student received a bachelor's degree in engineering.
2021/08/03 New book published. "Organic Semiconductors for Optoelectronics" Ed. Hiroyoshi Naito (John Wiley & Sons) 2021/07/22 New article accepted. "Active refractive index control using a stably evaporable perfluororesin for high-outcoupling-efficiency organic light-emitting diodes", Journal of Materials Chemistry C. This work was done in collaboration with Yamagata University and AGC Inc.This article is selected for "Journal of Materials Chemistry C HOT Papers" and Front cover! 2021/06/08 New article accepted. "Molecular orientation anisotropy and hole transport properties of diluted semiconducting films of poly(p-phenylenevinylene) derivative", Organic Electronics. 2021/06/04 8 undergraduate students joined.
2021/04/30 New article accepted. "Effect of chemically induced permittivity changes on the plasmonic properties of metal nanoparticles", Communications Materials. 2021/04/26 New article accepted. "Investigating Bulk-to-Interface Doping Relaxation in Light-Emitting Electrochemical Cells via Displacement Current Measurements", ACS Applied Electronic Materials. 2021/03/26 3 graduate students received a master's degree in engineering. 1 undergraduate student received a bachelor's degree in engineering.
2020/12/31 New article accepted. "Enhancement of the molecular orientation of TPBi in coevaporated films of UGH‐2 host molecules", Surface and Interface Analysis. 2020/11/28 New article accepted. "Oxidative Vaporization Etching for Molybdenum Tip Formation in Air", Applied Surface Science. 2020/07/14 8 undergraduate students joined.
2020/06/26 New article accepted. "Influence of Intermolecular Interactions on the Formation of Spontaneous Orientation Polarization in Organic Semiconducting Films", Journal of the Society for Information Display. 2020/03/23 1 graduate students received a master's degree in engineering. 9 undergraduate students received a bachelor's degree in engineering.
2020/01/17 New article accepted. "Bubble-Free Transfer Technique for High-Quality Graphene/Hexagonal Boron Nitride van der Waals Heterostructures", ACS Applied Materials & Interfaces. 2019/12/24 Our paper won the IDW'19 Best Paper Award! 2019/06/02 New article accepted. "Topological Valley Currents in Bilayer Graphene/Hexagonal Boron Nitride Superlattices", Applied Physics Letters. This article is selected for "Featured Article"! 2019/03/26 4 graduate students received a master's degree in engineering. 7 undergraduate students received a bachelor's degree in engineering.
2019/02/25 New review article accepted. "Spontaneous orientation polarization in organic light-emitting diodes", Japanese Journal of Applied Physics. 2019/01/25 New article accepted. "Photocontrollable ambipolar transistors with π-conjugated diarylethene photochromic channels", Japanese Journal of Applied Physics. This article is selected for "Spotlights" and "MNC2018 Outstanding Paper"! 2018/10/17 New article accepted. "Ambipolar Carrier Transport in an Optically Controllable Diarylethene Thin Film Transistor", Organic Electronics.
2018/06/29 New article accepted. "Simultaneous observation of the electrical and luminous characteristics of light-emitting electrochemical cells by using a displacement current measurement technique", Advanced Optical Materials.
2018/06/04 7 undergraduate students joined.
2018/04/11 New article accepted. "Observation of spontaneous orientation polarization in evaporated films of organic light-emitting diode materials", Organic Electronics. 2018/03/26 1 graduate student received a master's degree in engineering. 8 undergraduate students received a bachelor's degree in engineering.
2017/06/14 9 undergraduate students joined.
2017/05/08 New article published. "Molecular-Floating Gate Single-Electron Transistor", Scientific Reports.
2017/04/25 New article accepted. "Negative Capacitance in an Organic Solar Cell Observed by Displacement Current Measurement", Journal of Physics: Conference Series.
2017/03/26 8 undergraduate students received a bachelor's degree in engineering.
2017/02/20 New article published. "Degradation Process in Pentacene-Based Organic Field-Effect Transistors Evaluated by Three-Terminal Capacitance-Voltage Measurements", MRS Advances.
2016/12/01 Assist. Prof. Makoto Yamamoto moved to National Institute for Materials Science.
2016/10/14 New article published. "Simulation of OLEDs with a polar electron transport layer", Organic Electronics.
2016/10/13 New article accepted. "Observation of charge transport through CdSe/ZnS quantum dots in a single-electron transistor structure", Journal of Applied Physics.
2016/08/26 Assist. Prof. Makoto Yamamoto won a poster award in ElecMol2016.
2016/04/11 9 undergraduate students joined.
2016/04/01 Dr. Makoto Yamamoto joined as an assistant professor.
2016/03/26 6 students received a bachelor's degree in engineering.
2016/03/25 Makoto Yamamoto (Chiba Univ.) received a doctor's degree in engineering.
2015/12/12 New article accepted. "Significant relaxation of residual negative carrier in polar Alq3 film directly detected by high-sensitivity photoemission", Applied Physics Express
2015/9/17 New article accepted. "Observation of ambipolar switching in a silver nanoparticle single-electron transistor with multiple molecular floating gates", Japanese Journal of Applied Physics
2015/5/18 New article accepted. "Analyzing degradation effects of organic light-emitting diodes via transient optical and electrical measurements ", Journal of Applied Physics
2015/5/11 New article accepted. "Effects of Interfacial Electronic Structures on Transition Voltage Spectroscopy of Alkanethiol Molecular Junctions ", The Journal of Physical Chemistry C
2015/04/10 8 undergraduate students joined.
2015/01/15 New article accepted. "Spontaneous Orientation Polarization of Polar Molecules and Interface Properties of Organic Electronic Devices (in Japanese) ", Journal of the Vacuum Society of Japan
2014/12/03 New article accepted. "Charge carrier dynamics and degradation phenomena in organic light-emitting diodes doped by a thermally activated delayed fluorescence emitter ", Organic Electronics
2014/09/03 New article accepted. "Evaluation of internal potential distribution and carrier extraction properties of organic solar cells through Kelvin probe and time-of-flight measurements ", Journal of Applied Physics
2014/04/11 9 undergraduate students joined
2014/04/01 Noguchi group in Meiji University started.
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