Welcome to Noguchi group!


Organic molecules have two aspects as a material for the next-generation electronics devices. Individual molecules are an excellent nano-material with a well-defined structure at the atomic level. The films of organic molecules have mechanical and functional flexibilities. The organic materials are promising for the future electronics devices because of these excellent properties. We are studying the basic properties, such as charge injection, accumulation, and transport in the organic and molecular electronic devices. We aim to contribute to the realization of the novel electronic devices using organic materials by providing better understandings of the material and device physics.

News

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.