Our laboratory is conducting research on nanoelectronic materials* with the aim of creating electronics technology with new electronic and optical functions. (* nanometer is roughly equivalent to the length of 10 atoms.)
We will understand the behavior of electrons and light in nanoelectronic materials such as semiconductors from the viewpoints of electronics and condensed matter physics. We are also engaged in the fabrication of energy-saving light-emitting diodes (LEDs), lasers, photodiodes, and other optoelectronic devices using nanomaterials, the exploration of new photoelectric information conversion devices, and research on plasma simulations for device integration.
In this laboratory, there are graduate students of Division of Electronics for Informatics, Graduate School of Information Science and Technology, Hokkaido University, and students of Department of Electronics and Information Engineering, School of Engineering, Hokkaido University.
Using molecular beam epitaxy, we fabricate ultra-pure semiconductor crystals and fabricate optical elements such as LEDs, lasers, and photodiodes through processes such as vacuum deposition, sputtering, and etching.
The electronic states and the operational characteristics of grown crystals and optoelectronic devices are studied by photoluminescence in the real time region of femto-, pico*-, nano-, and microseconds. The spin state, which is the magnetic property of electrons, can also be analyzed by studying the polarization state of photoluminescence.
(* The distance light can travel in 1 picosecond is only 0.3 mm. 1 picosecond corresponds to a frequency range of 1 terahertz (THz)).
Plasma characteristics for use in semiconductor device integration processes are studied by computational analysis.
Featured Articles
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Research results on spin LEDs capable of high-voltage operation at room temperature have been published in Physical Review Applied.
Efficient Room-Temperature Operation of a Quantum Dot S…
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Research results on room temperature operation of field-effect optical spin devices have been published in Advanced Electronic Materials (IF:7.6)
Efficient Room-Temperature Voltage Control of Picosecon…
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The results of an international collaboration on the world's highest performance semiconductor spin amplification at room temperature and even 110°C have been published in Nature Photonics (IF: 31)
Room-temperature electron spin polarization exceeding 9…
Awards (Japanese Only)
News (Japanese Only)
Publication
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木瀬寛都さんの電界駆動スピン注入制御による円偏光変調に関する研究成果がApplied Physics Lettersに掲載され、Editor’s Pickに選出されました。
Electric-field driven source of photocarriers for tunab…
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Research results on spin LEDs capable of high-voltage operation at room temperature have been published in Physical Review Applied.
Efficient Room-Temperature Operation of a Quantum Dot S…
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本学量集センター、東京大学、愛媛大学との共同研究の成果がNanoscale Advances誌にオンライン掲載されました。
Wafer-scale integration of GaAs/AlGaAs core–shell nanow…
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Research results on room temperature operation of field-effect optical spin devices have been published in Advanced Electronic Materials (IF:7.6)
Efficient Room-Temperature Voltage Control of Picosecon…
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北見工業大学との共同研究の成果がSurface and Coatings Technology誌にオンライン掲載されました。
Optical characterization and emission enhancement prope…
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本学理学研究院の錯体化学研究室との共同研究の成果がAdvanced Optical Materials誌(IF:9.9)に掲載されました。
Thermo- and Mechano-triggered Luminescence ON/OFF Switc…