Ayumi Ishii

Development of novel photofunctional devices based on one-dimensional helical nanomaterials with organic-inorganic hybrid

Research Director

Ayumi Ishii

Collaborator

Tetsuaki Itou	Professor Faculty of Advanced Engineering Tokyo University of Science
Shinnji Tanaka	Senior Researcher Interdisciplinary Research Center for Catalytic Chemistry National Institute of Advanced Industrial Science ＆Technology
Tatsuki Tahara	Senior Researcher Radio Research Institute National Institute of Information and Communications Technology

Outline

This project will establish fundamental technologies for new photofunctional functions and devices based on one-dimensional helical inorganic nanomaterials with unique electronic and spin states, which is controlled by organic-inorganic hybrid structures. The electronic states and optical functions induced by one-dimensional helical arrangements with broken spatial inversion symmetry and strong spin-orbit interactions (circularly polarized light detection, bulk photovoltaics, and photocurrent-induced magnetism) will be used to develop next-generation optical semiconductor devices (multi-dimensional optical imaging system, ultra high-power solar cells, and ultra energy-saving information processing devices).

Toshiaki Kato

Development of graphene-based standard quantum limit amplifier with interface-controlled direct growth method

Research Director

Toshiaki Kato

Collaborator

Tomohiro Otsuka	Associate Professor Advanced Institute for Materials Research, Research Institute of Electrical Communication Tohoku University
Kouichi Semba	Project Professor Graduate School of Science The University of Tokyo
Fumiki YOSHIHARA	Professor Faculty of Science Tokyo University of Science

Outline

In this study, we attempt to develop basic technology for fabrication of graphene-based standard quantum limit (SQL) amplifier by improving our direct fabrication method of graphene devices. Since the SQL amplifier can amplify a signal with keeping ultra-low noise level, it can be expected to be utilized in future quantum devices such as a quantum computer by drastically improving SQL amplifier performances with graphene.

Masaharu Kobayashi

Nanosheet oxide semiconductor for 3D integrated memory devices

Research Director

Masaharu Kobayashi

Collaborator

Mutsunori Uenuma	Principal researcher Sensing system research center Advanced Industrial Science and Technology
Yukiharu Uraoka	Professor Graduate School of Science and Technology Nara Institute of Science and Technology

Outline

In this research, we aim at developing atomic layer deposition process for nanosheet oxide semiconductor, exploring physics and interface properties in nanosheet oxide semiconductor devices, and demonstrate 3D integrated memory devices. Experts of material/process, device, characterization, theoretical calculation in the field of oxide semiconductor and nanoelectronics collaborate and achieve the research goals.

Taishi Takenobu

Ultra-high-density carrier control in two-dimensional materials

Research Director

Taishi Takenobu

Collaborator

Wen Hsin Chang	Senior Researcher Semiconductor Frontier Research Center National Institute of Advanced Industrial Science and Technology
Kaori Hirahara	Professor Graduate School of Engineering Chiba University
Mina Maruyama	Assistant Professor Institute of Pure and Applied Sciences University of Tsukuba
Yasumitsu Miyata	Associate Professor Graduate School of Science Tokyo Metropolitan University

Outline

We will establish area- and type-selective high-density carrier doping techniques for two-dimensional materials, such as monolayers and in-plane and out-of-plane heterostructures, focusing on transition metal chalcogenides. Based on these techniques, we aim to establish the sciences of metal/semiconductor junctions and PN junctions in two-dimensional materials and to realize functional devices based on them.

Katsuhiro Tomioka

3D integrated quantum electronics and circuits using vertical semiconductor nanowire array

Research Director

Katsuhiro Tomioka

Collaborator

Koji Inoue	Professor Graduate School and Faculty of Information Science and Electrical Engineering Kyushu University
Kohei Hamaya	Professor Graduate School of Engineering Science Osaka University

Outline

Based on III-V nanowires and their heterostructures, we develop novel 3D integrated circuit technologies including new devices, processes, and circuit architecture toward realization of ultra-low power electronics and their society.