July 23rd, 2026

Our paper demonstrating the passivation strategy for the high-performance photodetector devices based on PbS epitaxially connected quantum dot superlattices has been published in ACS Applied Electronic Materials. This research was performed by Mr. Dadan Suhendar (D3), Ms. Chisa Nishiyama (M1), Mr. Yoshiki Omomo (M2) and together with Dr. Ricky Septianto (former member, visiting researcher) and Dr. Bisri.  The title of the paper is "Passivation Strategy Toward Stable Photodetector of Epitaxially Connected Quantum Dot Superlattices". link to the paper. 

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July 16th, 2026

Dr. Bisri made a flashtalk at the 5th LAB JAM 2026 (URMO x TT Research Exchange) event to introduce the research activities and achievements of our lab.

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July 15th, 2026

A paper on our collaborative work with universities in several Southeast Asian countries, including Institut Teknologi Sepuluh Nopember (Indonesia), National University of Singapore, Shanghai University, Universiti Kebangsaan Malaysia, and Universiti Brunei Darussalam, has been published in Surfaces and Interfaces. The paper discusses the development of (Ni/NiO/nitrogen-doped carbon)/TiO2 heterostructures for efficient hydrogen photogeneration. This paper marks our group's another involvement in the hydrogen research direction. link to the paper 

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July 7th, 2026

We bid farewell to Ghaitsa Aqshal Maulana, a student from Brawijaya University and affiliated with BRIN-Indonesia. He finished his stay in SEMANTICS as part of JST NEXUS-YTec program. 

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July 6th, 2026

Ms. Fidya Mawaddah (Doctoral student, D1) presented her research on AgBiS2 nanocrystals at the Gordon Research Seminar (GRS) and Gordon Research Conference (GRC) on Colloidal Semiconductor Nanocrystals in Les Diablerets, Switzerland. She also visited Dr. Gabriele Raino at the laboratory of Prof. M. V. Kovalenko (ETH Zurich) after the conference.  

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June 25th, 2026

A conference proceeding on some aspects of AgBiS2 computational studies has been published in Advances in Engineering Research: Proceedings of the 19th International Conference on Quality in Research (QiR 2025). This research was performed by Mr.Mr. Yuta Tanaka (M2), Ms. Fidya Mawaddah (D1), Mr. Dadan Suhendar (D3), and Dr. Bisri.  The title of the paper is "Electronic Properties of AgBiS2 Nanocrystal Structure Variations". link to the paper. 

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June 7th, 2026

We bid farewell to Najwah Crystallin Mahira and Ashilaa Najwah, who are students from Indonesian universities and affiliated with BRIN-Indonesia. They finished their stay in SEMANTICS as part of JST NEXUS-YTec program. 

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June 2nd, 2026

Mr. Dadan Suhendar (Doctoral student, D3) finished his preliminary examination of his doctoral dissertation on QD photodetector research. His doctoral public defense will be held on Wednesday (July 29th), 16:00 at L0022 of Koganei Campus.  

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​May 24th, 2026

Dr. Bisri delivered an invited workshop talk at The Compound Semiconductor Week 2026 (CSW2026) in Kumamoto, Japan. The workshop topic is on "Integration of Dissimilar Materials/Devices and Packaging Technologies", and Dr. Bisri introduced colloidal quantum dot transistors and photodetectors.  

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May 18th, 2026

The QD2026 Conference, in which Dr. Bisri served on its International Program Committee, is being held in Busan, South Korea, until May 22nd. At this conference, SEMANTICS contributes three presentations by Dr. Bisri, Ms. Fidya Mawaddah, and Dr. Wulandari (a visiting researcher). 

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May 14th, 2026

Congratulations to Siti Nursyamsiah (M1 student), who has been accepted into the TUAT-WISE (Excellent Leader Development for Super Smart Society by New Industry Creation and Diversity) program. about TUAT-WISE program. 

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May 7th, 2026

We welcome Ghaitsa Aqshal Maulana, Najwah Crystallin Mahira, Ashilaa Najwah, who are students from Indonesian universities and affiliated with BRIN-Indonesia. They will stay in SEMANTICS for either one month or two months as part of JST NEXUS-YTec program.​

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May 1st, 2026

We congratulate our D1 doctoral student (Hiroaki Maemori), who received the FL-SPRING fellowship for his doctoral studies on supercapacitor devices.

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April 17th, 2026

We congratulate our D1 doctoral student (Ms. Fidya Mawaddah), who received the Sasakawa Scientific Research Grant from The Japan Science Society for her research on the morphology analysis of colloidal nanocrystals.  

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April 8th, 2026

Our invited review/perspective paper on electronic transport in colloidal quantum dot assemblies has been published in The Journal of Physical Chemistry Letters (ACS). The paper's title is "Pursuing Band-like Transport in Colloidal Quantum Dot Assemblies." We hope that this review/perspective paper serves as a textbook and guidance for this research field. link to the paper. (Open Access) 

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April 1st, 2026

Due to the abolition of the Division of Advanced Electronic and Electrical Engineering in the TUAT Institute of Engineering, SEMANTICS now falls under the Division of Applied Physics and Chemical Engineering of the TUAT Institute of Engineering, with the Optical Quantum Materials Engineering research platform.

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April 1st, 2026

Mr. Junpei Yoshida, Mr. Yoichi Okui, Mr. Kiyoaki Kitahara, and Mr. Hirosato Yamaguchi fully join our group as Bachelor B4 students. Mr. Souma Ito, Mr. Ibuki Ogata, Mr. Shota Kamata, and Ms. Chisa Nishiyama continue their postgraduate study as Master`s (M1) students in our group. 

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March 25th, 2026

Congratulations to Mr. Soma Ito, Mr. Ibuki Ogata, Ms. Chisa Nishiyama, and Mr. Shota Kamata for graduating from the Bachelor's course (in Applied Physics & Chemical Engineering). We also congratulate Mr. Hiroaki Maemori, who graduated from the Master`s program (in Applied Physics & Chemical Engineering). All of them are planning to continue their studies and research. 

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March 19th, 2026

Dr. Bisri delivered an invited talk at The Asian International Symposium - Nanotechnology/Materials Chemistry, Resources and Energy, Geochemistry, Nuclear Chemistry, Radiochemistry - held during the 106th Chemical Society of Japan (CSJ) Annual Meeting at Nihon University (Funabashi, Chiba), Japan. The invited talk was about high-performance photodetectors based on a quasi-two-dimensional epitaxially connected superlattice of colloidal quantum dots, from a materials chemistry perspective. 

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March 17th, 2026

Mr. Dadan Suhendar (Doctoral student, D2), Mr. Daiki Kamoshita (Master`s student, M1), and Mr. Soma Ito (Bachelor student, B4) made oral presentations at the 73rd Japan Society of Applied Physics (JSAP) Spring Meeting (Institute of Science Tokyo, Ookayama Campus, Tokyo). They presented their work on PbS QD photodetector devices, AgBiS2 photodetector devices, and the electronic transport of novel iron-compound nanoplatelets, respectively.  

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March 16th, 2026

Our paper demonstrating high-performance photodetector devices based on PbS epitaxially connected quantum dot superlattices has been published in Advanced Optical Materials. This research was performed by Mr. Dadan Suhendar (D3), Mr. Yuto Aoki (OB-B4) and Ms. Chisa Nishiyama (B4), together with Dr. Ricky Septianto (former member, visiting researcher) and Dr. Bisri.   The title of the paper is "High-Performance Photodetectors of Quasi-2-Dimensional Epitaxially-Connected Quantum Dot Superlattices".  link to the paper. link to the press release (JP). English press release.

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​​News Archives​

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Aug 4th, 2025

Our paper on the synthesis of AgBiS2 colloidal nanocrystals and the demonstration of high-performance photodetector devices has been published in Nanoscale. The title of the paper is "Evolution of the formation of AgBiS2 colloidal nanocrystals for optoelectronic devices". link to the paper. link to TUAT press release​​​​​

 

​​May 11th, 2025

An invited review paper on charge carrier injection and extraction of colloidal quantum dot assemblies, written by Dr. Bisri, has been published in the Journal of Information Display. The paper is a part of a Special Issue on "Quantum Dots: Enabling the Next Evolution in Display Technology". link to the paper. link to the Special Issue. 

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May 7th, 2025

A research paper on the analysis of the π-SnS Nanocrystals synthesis method has been published in ACS Applied Nano Materials. link to the paper.  

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February 3rd, 2025

Our paper on single quantum dot transistors has been published in Nanoscale (RSC). It is a result of collaborative work together with the Institute of Science Tokyo and RIKEN. By precisely anchoring a single PbS quantum dot, we demonstrated resonant tunneling transistors exhibiting multiple negative differential resistance (NDRs), an important milestone for solution-processable quantum electronic devices. (open access) link to the paper

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January 19th, 2025

A paper on our collaborative work with universities in several Southeast Asian countries, including Institut Teknologi Sepuluh Nopember (Indonesia), National University of Singapore, Universiti Kebangsaan Malaysia, and Universiti Brunei Darussalam, has been published in ACS Applied Energy Materials. The paper discusses the development of dendritic fibrous nano silica-titania for high-performance photocatalytic hydrogen evolution. This paper marks our group's first involvement in the hydrogen research direction. link to the paper ​

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January 10th, 2025

Our group will co-organize the "Nanomaterials and Quantum Materials for Emerging Technologies" symposium in the Materials Research Meeting (MRM) 2025 (December 8th-13th, 2025) in Yokohama. Link to the website

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December 19th, 2024

Dr. Bisri was interviewed for the TUAT Professor Encyclopedia (農工大先生大図鑑). link to the interview page (in Japanese). 

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August 8th, 2024

Our invited review paper on Silver Bismuth Sulfide Quantum Dots has been published in Nanomaterials (Q1). The paper's title is "Advancing Silver Bismuth Sulfide Quantum Dots for Practical Solar Cell Applications." It appears in the Special Issue of "Advancing the Sustainable Application of Nanostructured Materials in Solar Cells". Link to the paper (Open Access).​

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May 17th, 2024

Our paper on using colloidal semiconductor quantum dots as building blocks of high-performance supercapacitors has been published in ACS Applied Materials & Interfaces. The title of the paper is "High Volumetric Energy Density Supercapacitor of Additive-Free Quantum Dot Hierarchical Nanopore Structure." The paper.   ​

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Nov 18th, 2023

A paper on our collaborative work with the Tohoku Institute of Technology, "Single PbS Colloidal Quantum Dot Transistors" has just been published in Nature Communications. The paper. TUAT press release. RIKEN press release.  

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May 26th, 2023

Our paper, "Enabling metallic behaviour in twodimensional superlattice of semiconductor colloidal quantum dots" has just been published in Nature Communications. RIKEN press release (jpn). RIKEN press release (en). TUAT press release. the paper.

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News Archives