学位

• 博士（理学）()

経歴

学歴

受賞

• A* award
• Best Oral Presentation Award
• Poster Award
• 学生発表奨励賞

その他

論文

• Elucidating the Mechanisms of the Large Stokes Shift in Isolated and Coupled PbS Quantum Dots [DOI] [Scopus] [Scopus]
• Drift–Diffusion Simulation of Intermediate Band Solar Cell: Effect of Intermediate Band Continuity Constraint [DOI] [Othres link] [Othres link]
• Electronic-, Optical-, and Temperature-Dependent Carrier Mobility Simulations of Perovskite-Type Liganded PbS Quantum Dot Array [DOI] [Othres link] [Othres link]
• Enhanced Hot-Phonon Bottleneck Effect on Slowing Hot Carrier Cooling in Metal Halide Perovskite Quantum Dots With Alloyed A-Site. [DOI] [PubMed]
• High-efficiency InAs/GaAs quantum dot intermediate band solar cell achieved through current constraint engineerin [DOI]
• Inverse design of intermediate band solar cell via a joint drift-diffusion simulator and deep reinforcement learning scheme
• Ultrafast inverse design of quantum dot optical spectra via a joint TD-DFT learning scheme and deep reinforcement learning [DOI] [Othres link]
• Enhanced current generation in quantum-dot intermediate band solar cells through optimizing the position of quantum dot layers
• Demonstration of in-plane miniband formation in InAs/InAsSb ultrahigh-density quantum dots by analysis of temperature dependence of photoluminescence [DOI] [Othres link] [Othres link]
• AI-Assisted Decision Making and Risk Evaluation in Uncertain Environment Using Stochastic Inverse Reinforcement Learning: American Football as A Case Study [DOI]
• General Vapnik–Chervonenkis dimension bounds for quantum circuit learning
• Model-Free Deep Recurrent Q-Network Reinforcement Learning for Quantum Circuit Architectures Design [DOI]
• Over 15% Efficiency PbS Quantum-Dot Solar Cells by Synergistic Effects of Three Interface Engineering : Reducing Nonradiative Recombination and Balancing Charge Carrier Extraction [DOI]
• Quantum circuit architectures via quantum observable Markov decision process planning [DOI]
• Attention and masking embedded ensemble reinforcement learning for smart energy optimization and risk evaluation under uncertainties
• Hydrodynamic and Energy Transport Model Based Hot Carrier Effect in GaAs pin Solar Cell, Electronic Materials
• Quantum Dot Phase Transition Simulation with Hybrid Quantum Annealing via Metropolis-Adjusted Stochastic Gradient Langevin Dynamics [DOI]
• Variational quantum circuit based reinforcement learning for POMDP and experimental imple- mentation [DOI]
• Quantum-inspired classification algorithm from DBSCAN-Deutsch-Jozsa support vectors and Ising prediction model [DOI]
• Experimental demonstration of energy-transfer ratchet intermediate-band solar cell [DOI] [Othres link] [Othres link]
• InAs/GaAsSb In-Plane Ultrahigh-Density Quantum Dot Lasers [DOI]
• On the expressibility and overfitting of quantum circuit learning [DOI]
• Quantum Circuit Learning with Error Backpropagation Algorithm and Experimental Implementation [DOI]
• Low Sunlight Concentration Properties of InAs Ultrahigh-Density Quantum-Dot Solar Cells [DOI]
• Sunlight Concentration Properties of InAs/InAsSb Ultrahigh-Density Quantum -Dot Solar Cells [DOI]
• An Approach to Renewable-Energy Dominant Grids via Distributed Electrical Energy Platform for IoT Systems [DOI] [Othres link]
• Online optimization of AGV transport systems using deep reinforcement learning
• Multi-agent Based Energy Balancing Management Algorithm for Smart Grid System
• Variational Quantum Support Vector Machine based on Deutsch-Jozsa Ranking
• Development of Alpha Zero-based Reinforcement Learning Algorithm for Solving Partially Observable Markov Decision Process (POMDP) Problem
• Quantum Circuit Learning Using Error Backpropagation
• Attention-masking extended deep Q network (AME-DQN) reinforcement learning algorithm for combinatory optimization of smart-grid energy
• Multi-carrier energy hub management through deep deterministic policy gradient over continuous action space
• Smart Grid Optimization by Deep Reinforcement Learning over Discrete and Continuous Action Space
• Optical Transition and Carrier Relaxation in a Type-II InAs/GaAsSb Quantum Dot Layer [DOI]
• Growth Process and Photoluminescence Properties of In-Plane Ultrahigh-Density InAs Quantum Dots on InAsSb/GaAs(001) [DOI]
• Self-Formation of InAs Quantum Dots on SiOx/Semiconductor Substrates by Molecular Beam Deposition
• Hybrid Policy Gradient for Deep Reinforcement Learning
• Development of Generic CNN Deep Learning Method Using Feature Graph
• Photoluminescence Properties of In-Plane Ultrahigh-Density InAs Quantum Dots on GaAsSb/GaAs(001) for Solar Cell Applications
• Temperature Dependence of Luminescence Coupling Effect in InGaP/GaAs/Ge Triple Junction Solar Cells [DOI]
• High density quantum dot solar cells for concentrating photovoltaics (CPV) [DOI]
• Impact of optically nonuniform luminescence coupling effect to the limiting cell conversion efficiency in InGaP/GaAs/Ge triple junction solar cell [DOI] [Web of Scientce]
• Photoluminescence Mapping of In-Plane Ultrahigh-Density InAs Quantum Dots for Solar Cell Applications
• Hot Carrier Transportation Dynamics in InAs/GaAs Quantum Dot Solar Cell
• Recent progress on quantum dot solar cells: a review [DOI] [Web of Scientce]
• Demonstration of the operation principles of intermediate band solar cells at room temperature [DOI] [Web of Scientce]
• Growth of ErAs nanodots by molecular beam epitaxy for application to tunneling junctions in multijunction solar cells [DOI] [Web of Scientce]
• Optimization of decentralized renewable energy system by weather forecasting and deep machine learning techniques [Web of Scientce]
• Laser Beam Induced Current (LBIC) Mapping of InGaP/GaAs/Ge Triple Junction Solar Cells with Luminescence Coupling [Web of Scientce]
• In-plane coupling effect on absorption coefficients of InAs/GaAs quantum dots arrays for intermediate band solar cell [Web of Scientce] [DOI]
• Intermediate band solar cell with extreme broadband spectrum quantum efficiency [DOI]
• Intermediate Band Solar Cells: Recent Progress and Future Directions [DOI]
• Voltage limitation analysis in strain-balanced InAs/GaAsN quantum dot solar cells applied to the intermediate band concept [DOI]
• Self-consistent electrical parameter extraction from bias dependent spectral response measurements of III-V multi-junction solar cells [Web of Scientce] [DOI]
• Quantum dot array based intermediate band solar cell: effect of light concentration [Web of Scientce]
• Enhancement of current collection in epitaxial lift-off InAs/GaAs quantum dot thin film solar cell and concentrated photovoltaic study [DOI] [Web of Scientce]
• Enhancement of current collection in epitaxial lift-off InAs/GaAs quantum dot thin film solar cell and concentrated photovoltaic study [DOI] [Web of Scientce]
• Fabrication and characterization of GaAs tunnel diode and ErAs nanoparticles enhanced GaAs tunnel diode for multijunction solar cell [DOI]
• Extraction of electrical parameters in multi-junction solar cells from voltage dependent spectral response without light bias [CiNii Research (CiNii Articles)] [DOI]
• Intermediate-band dynamics of quantum dots solar cell in concentrator photovoltaic modules [Web of Scientce] [DOI]
• Analysis of bias voltage dependent spectral response in Ga0.51In0.49P/Ga0.99In0.01As/Ge triple junction solar cell [Web of Scientce] [DOI]
• Fabrication and characterization of GaAs tunnel diode and ErAs nanoparticles enhanced GaAs tunnel diode for multijunction solar cell [DOI]
• Enhancement of current collection in epitaxial lift-off InAs/GaAs quantum dot thin film solar cell and concentrated photovoltaic study [Web of Scientce]
• Intermediate Band Solar Cells [Web of Scientce] [Othres link]
• Theoretical analysis of GaAs/AlGaAs quantum dots in quantum wire array for intermediate band solar cell [DOI]
• Theoretical analysis of GaAs/AlGaAs quantum dots in quantum wire array for intermediate band solar cell [DOI] [Web of Scientce]
• Local conductivity characteristics of individual ErAs island for solar cell tunnel junction application [Web of Scientce]
• Analysis of GaAs/AlGaAs quantum nanodisk solar cell with intermediate band carrier transportation [Web of Scientce]
• Experimental characterization and self-consistent modeling of luminescence coupling effect in III-V multijunction solar cells [DOI] [Web of Scientce]
• In-plane coupling effect in InAs/GaAs quantum dots arrays for intermediate band solar cell [DOI] [Web of Scientce]
• Recent progress on quantum dot intermediate band solar cells [CiNii Research (CiNii Articles)] [Web of Scientce] [DOI]

その他業績

• 量子コンピュータの現状と機械学習への応用
• 5分で分かる!?有名論文ナナメ読み
• 超スマート社会の社会品質を支えるi-パワードエネルギー・システム
• 超スマート社会の社会品質を支えるi-パワードエネルギー・システム [CiNii Books] [CiNii Research] [Othres link] [Othres link]
• 深層学習・深層強化学習を応用したエネルギーシステムの最適化
• 製造加工分野におけるディープラーニング技術の応用 (特集 溶接の品質向上に貢献する可視化技術・画像処理技術
• 製造加工分野におけるディープラーニング技術の応用
• 再生可能エネルギー指向自律分散グリッドーバーチャルグリッドー

講演・口頭発表等

• Risk-Hedging AI-driven Optimization in Microgrid Renewable Energy Systems
• Control of Orientation of Reactive Sputtering Grown MoS2 Films
• Quantum circuit architectures via quantum observable Markov decision process planning
• コアシェル量子ドットにおける第一原理非平衡輸送解析と構造逆設計
• PbS量子ドットにおける第一原理非平衡グリーン関数解析およびリガンド効果
• PbS/CdS量子ドット薄膜の光励起キャリアダイナミクス
• A study on the expressibility and learnability of quantum circuit learning
• 再生エネルギーミックスにおける深層強化学習予測・最適化技術の開発
• AI予測最適化手法を用いたペロブスカイト/PbSコロイド量子ドット中間バンド太陽電池の逆設計
• Q-learning for square lattice Ising model
• 量子近似最適化アルゴリズム(QAOA)を用いた複数制約条件付き最適化問題への応用
• 部分観測マルコフ決定過程(POMDP)を用いた 異常前兆予測検知手法の開発
• ベイジアン逆強化学習を用いた異常前兆予測検知手法の開発
• 深層強化学習を用いたアメリカンフット ボールコーチング戦略の研究
• ハイブリッド量子古典的 Ulam-von Neumann線形ソルバーベースの量子動的プログラミングアルゴリズムの開発
• 深層強化学習を用いた AGV搬送システムのオン ライン最適化
• Bootstrapping Baysian Inverse Reinforcement Learning in Robotics through VR Demonstration
• 密度球を用いたGraph CNN深層学習手法による渋滞予測
• 量子コンピューティングにおける最適解の全量子探索
• 汎化ゴールにおける連続動作型ロボットアームの深層強化学習手法の開発
• アルファゼロ型強化学習アルゴリズムを用いた最適制御手法の開発
• 量子シミュレーターを用いた畳み込み型量子自己符号化器の開発
• 深層学習・深層強化学習を応用したエネルギーシステムの組み合わせ最適化と予測
• Implementing Classical-Quantum Hybrid Machine Learning Algorithms
• Opportunities and challenges for developing hybrid quantum-classical machine learning and optimization algorithms
• 面内超高密度InAs量子ドット層を導入した量子ドット太陽電池の集光特性(2)
• 励起子型量子ゲートシミュレーター手法による量子ドット発光解析
• Self-Formation of InAs Quantum Dots on Oxide/Semiconductor Substrates by Molecular Beam Deposition
• Hybrid Policy Gradient for Deep Reinforcement Learning
• 離散および連続的動作空間における深層強化学習を用いたスマートアネルギーシステムの最適化
• 特徴グラフを用いた汎用型 CNN 深層学習手法の開発
• 量子自己符号化器の開発
• Self-formation of in-plane ultrahigh-density InAs quantum dots and their photoluminescence properties
• GRID Inc: Deep learning framework for industrial and engineering optimization application
• GaAsSb/GaAs(001)上の 高密度 高密度 InAs量子ドット 量子ドット 層の発光特性
• 面内超高密度InAs量子ドット層を導入した太陽電池におけるUrbach tailの影響
• スマートエネルギーネットワークの最適化における深層強化学習の応用
• GaAsSb/GaAs(001)上の高密度InAs量子ドット層の発光 特性
• Spatial Distribution of Temperature Dependent luminescence coupling Current in InGaP/GaAs/Ge Triple Junction Solar Cells,
• InAsSb/GaAs(001) 上への InAs 3 次元島成長とその発光特性
• InAs/GaAs 量子ドット太陽電池におけるホットキャリア輸送 ダイナミクス
• 量子ドット中間バンド太陽電池の高効率化メカニズム
• Device simulation of thin-film intermediate-band solar cell using drift-diffusion model and FDTD method (oral)
• Photoluminescence and Photovoltaic Properties of Ultrahigh Density InAs Quantum Dots on InAsSb/GaAs(001)
• Epitaxial lift off (ELO) thin film InAs/GaAs quantum dot solar cell: current status and strategies toward 30% efficiency
• Investigation of Hot Carrier Transportation Dynamics in InAs/GaAs Quantum Dot Solar Cell
• Experimental analysis of hot state multiple exciton generation in PbSe quantum dots and its transportation modelling,
• Light absorption via discrete states in GaAs solar cell embedded with Er complex
• Device Simulation of Thin Film Solar Cell Characteristics considering Fabry-Perot Cavity Effect
• InAs/GaAs Quantum Dot Solar Cell with 26.8% Efficiency Achieved Through Current Constraint Engineering
• Evaluation of Conversion Efficiency for Multijunction Solar Cell with Luminescent Coupling Considering Series and Shunt Resistance Effects
• Fabrication of Hybrid ErAs:InAs Quantum Dots for Solar Cell Application
• Theory of Quantum Coupling and Efficiency in QD Array Based Intermediate Band Solar Cells
• Self-consistent modeling and bias dependent spectral response measurement of luminescence coupling effect in concentrator III-V multijunction solar cells (MJSC)
• Extraction of electrical parameters in triple-junction solar cell from voltage dependent spectral response without light bias
• GaAs/AlGaAs quantum nanodisks in quantum wire array for intermediate band solar cell
• Electronic Structure and Optical Properties of GaAs/AlGaAs Nanodisk: A Plane Wave Expanded 14-Band K・P Study
• Operation Characteristics of InAs Quantum Dot Intermediate-Band Solar Cells
• Self-consistent Approach for Modeling the Luminescent Coupling in Concentrator III-V Multijunction Solar Cells
• Electrical Parameters Extraction from Voltage Dependent Spectral Response in Multi-junction Solar Cells without Bias Light
• Operation Characteristics of Quantum Dot Intermediate-Band Solar Cells
• 自己組織化3次元量子ナノ構造の作製と高効率太陽電池応用
• Bias voltage dependent spectral response measurement and self-consistent modeling of luminescence coupling in III-V multijunction solar cells
• Fabrication and numerical simulation of GaAs and ErAs enhanced GaAs tunnel diodes for multijunction solar cells
• Operation Characteristics of Quantum Dot Intermediate-Band Solar Cells
• Self-consistent Fitting of Electrical Parameters for InGaAs/Ge Dual Junction Solar Cells from Bias-dependent Spectral Response
• First Demonstration of InAs/GaAs Quantum Dot CPV Module
• Applications of quantum dot superlattice and plasmonic nanoparticle array in high efficiency solar cells
• Modelling of Vertical and In-plane Quantum Dots Arrays for High Efficiency Solar Cells
• Applications of quantum dot superlattice and plasmonic nanoparticle array in high efficiency solar cells
• K.Bhattacharjee, Y. Zhang, T. Sogabe, C. L. Gao, M. Przybylski, and J. Kirschner. LT-STS study of atomic nanowires on Cu3N/Cu(110) surface
• Thickness-dependent oscillatory magnetic anisotropy of Fe films.
• LT-STS study of Fe, Cr and Au atomic nanowires on Cu3N/Cu(110) surface
• Oscillatory magnetic anisotropy originating from quantum well states in Fe films.
• Self-assembled Co nanorods grown on Cu(110)-(2x3)N studied by MOKE and XMCD
• Cu(110)-(2x3)N上のCoナノロッドの磁気的性質
• Self-assembled Fe nanowires on a copper nitride molecular network
• Out-of-plane and in-plane magnetization in exchange-coupled(Rh/FeCo)/Rh(001) multilayer structure
• Exchange coupling in Fe/NiO bilayers grown on vicinal Ag(001) surfaces
• Strong perpendicular anisotropy in alloy lms grown on Pd(001), Ir(001) and Rh(001)
• Self-assembled Fe nanowires on (2x3)N-induced Cu(110) surface.
• Strongly enhanced orbital moment and perpendicular magnetic anisotropy by reduced lattice symmetry of FeCo alloy film
• Spin reorientation transition(SRT) in magnetic ultrathin Fe film on Ag(001) Effect of chemisorption
• Spin reorientation transitions in Fe/Ag(001) induced by gas adsorption studied by XMCD and MOKE
• Electronic states and local structures of photomagnetic CuMo cyanides studied by X-ray absorption fine structure spectroscopy
• 放射光励起STMによる表面観察
• Si表面上のGdナノ細線の光電子分光
• 放射光励起STMの開発と性能評価
• Si 表面上の Gd 一次元鎖構造の光電子分光
• 高効率スピン偏極電子分析器（VLEED）の開発
• The Thermal Shock Behavior of Fiber Reinforced Porous Ceramic Composite Prepared by OFM
• ゾル―ゲル法による酸化亜鉛薄膜に対する基板からの影響

書籍等出版物

• Pythonではじめる量子AI入門量子機械学習から量子回路自動設計まで
• 機械学習・ディープラーニングを使った"異常検知"技術と導入・実用化のポイント
• 量子技術の基礎とＲ＆Ｄへの導入、活用方法～量子コンピュータ・量子アニーリング・量子シミュレーション・量子暗号通信など
• Hybrid quantum-classical dynamic programming algorithm
• Impact of Domain Knowledge’s Quality on Inverse Reinforcement Learning
• Pythonによる異常検知 [Othres link]
• 工場・製造プロセスへのＩｏＴ・ＡＩ導入と活用の仕方
• 機械学習を中心とした異常検知技術と応用提案
• 強化学習アルゴリズム入門「平均」からはじめる基礎と応用 [Othres link]
• ”Intermediate Band Solar Cells” | “Advanced Concepts in Photovoltaics”

作品等

共同研究・競争的資金等の研究課題

• 小規模創電・蓄電の統合運用を可能にするインターネット型電力プラットフォーム
• NEDO プロジェクト AI予測最適化手法を用いたシースルー量子ドット太陽電池の逆設計と開発
• 個性判別のための学習制御理論の検討
• 「エネルギー環境分野における数理モデルと人工知能融合」
• 機械学習を用いた半導体搬送システムにおける目的地到着時刻の予測」
• 科研挑戦的研究(開拓) 「協調給電による再生可能エネルギー指向自律分 散グリッドの開発と実証」
• 機械学習における基礎研究
• NEDOプロジェクト 超高効率・低コストⅠⅠⅠ-Ⅴ化合物太陽光 電池モジュールの研究開発(高密度量子ドット成長技術)
• 「下水運転操作の深層強化学習を前提としたAI技術開発 FRAMを用いたレジリエンス分析」
• カルマンフィルタを駆使した予測アルゴリズムの開発 共同研究費
• 気象データや各種センサーからの情報を元に人や物の動きの予測プロジェクト
• 太陽光発電量・気象予測プロジェクト

メディア報道

産業財産権

• 情報処理装置、情報処理方法及び情報処理プログラム
• 太陽電池

所属学協会

• 応用物理学会
• 人工知能学会
• 情報処理学会

委員歴

担当経験のある科目

• 電子工学実験第二
• 電子工学実験第二
• 基盤理工学専攻基礎
• 基盤理工学専攻基礎
• UECパスポートセミナー
• UECパスポートセミナー
• 総合コミュニケーション科学
• 総合コミュニケーション科学
• AIリテラシー入門
• AIリテラシー入門
• Electrical and electronic materials engineering
• 電気電子材料工学
• 線形システム理論
• 線形システム理論
• 基礎電子工学
• 基礎電気回路
• 基礎電子工学
• 基礎電子工学
• 基礎電気回路
• 基礎電気回路

社会貢献活動

学術貢献活動