Dr Jiewei CHEN won the PolyU Young Innovative Researcher Award 2024

Congratulations to Dr Jiewei Chen, a Research Assistant Professor from the Department of Applied Physics at The Hong Kong Polytechnic University (PolyU), on being awarded the PolyU Young Innovative Research Award (YIRA) for 2024. This accolade recognizes Dr Chen's groundbreaking work and innovative thinking as a young researcher under the age of 35. Dr Chen's award-winning project, "Integration of Optoelectronics and Optical Fibers for Robust In-Sensor Computing," exemplifies his ability to tackle real-world challenges through cutting-edge technology. By developing novel topological devices with innovative physical mechanisms in the post-processing units of AIoT (Artificial Intelligence of Things) systems, Dr Chen has made significant strides in reducing computational energy consumption while minimizing unnecessary data transmission. His research has led to remarkable improvements in intelligent sensing, pre-processing, and information extraction capabilities. PolyU Young Innovative Researcher Award (YIRA) aims to honor young PolyU researchers under the age of 35 who have made outstanding research achievements, contributed to technological advancements, and propelled transformative innovation to address societal problems. The awardees should demonstrate a vision for positive change and provide innovative solutions that shape the future. Let us applaud Dr Chen's outstanding achievements and commitment to pushing the boundaries of scientific understanding! 

Prof LOH Kian Ping and Dr Kathy LENG create 2D all-organic perovskites and demonstrate potential use in 2D electronics

Led by Prof. Loh Kian Ping, the research team from the Department of Applied Physics at the Hong Kong Polytechnic University has made a significant advancement in the field of perovskites, a class of materials with diverse applications in solar cells, lighting, and catalysis. The team has achieved a groundbreaking accomplishment by successfully synthesizing all-organic two-dimensional perovskites, extending the field into the exciting realm of 2D materials. Historically, the synthesis of all-organic three-dimensional perovskites has posed challenges due to the limited selection of organic molecules that can fit the crystal structure. To overcome this limitation, the researchers devised an innovative approach: they opted to synthesize all-organic perovskites in the form of two-dimensional layers instead of 3D crystals. This strategic shift enabled them to incorporate a broader range of organic ions, unlocking the emergence of novel and extraordinary properties. The team developed a new class of layered organic perovskites, dubbed the "Choi-Loh-v phase" (CL-v), which comprise molecularly thin layers held together by van der Waals forces. These two-dimensional organic perovskites exhibit a fundamental difference from traditional three-dimensional minerals, as they are single-crystalline in two dimensions and can be easily exfoliated. Notably, the CL-v phase demonstrated dielectric constants surpassing those of commonly used materials, presenting a promising pathway for their integration into two-dimensional electronic devices as a high-performance dielectric layer. The team successfully showcased the application of CL-v as the top gate dielectric in a transistor, achieving superior performance compared to conventional silicon oxide. This breakthrough not only establishes a new class of all-organic perovskites but also highlights their potential to enhance the efficiency and versatility of electronic systems through advanced fabrication techniques. Read the full research paper in Science. Press release: English | Chinese Online coverage: Science Daily PolyU Researchers Create 2D All-Organic Perovskites and Demonstrate Potential Use in 2D Electronics 09 May 2024 Semiconductor Digest PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 09 May 2024 Bioengineer PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 09 May 2024 Eurek Alert PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 09 May 2024 Nano werk Researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 09 May 2024 ETNet PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 06 May 2024 Yahoo US PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 06 May 2024 Washington Citypaper PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 05 May 2024 Weekender Singapore PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 05 May 2024 Macau Business PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 06 May 2024 Sina HK PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 06 May 2024 Ticker Technologies PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 05 May 2024 One News Page PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics 06 May 2024 Hong Kong China News Agency 港理大研究：首度製備二維全有機鈣鈦礦 06 May 2024  

AP establishes the Research Centre for Nanoscience and Nanotechnology with Waterloo Institute of Nanotechnology of Waterloo

The Department of Applied Physics at the Hong Kong Polytechnic University (PolyU AP) has partnered with the Waterloo Institute for Nanotechnology (WIN) at the University of Waterloo, Canada's largest nanotechnology institute, to establish the Joint Research Centre for Nanoscience and Nanotechnology. The new Research Centre aims to advance fundamental knowledge in nanoscience and nanotechnology, initiate collaborative research activities focused on cutting-edge applications, and promote knowledge transfer between the two institutions. Key areas of collaborative research will include functional devices, clean energy and environmental applications, and biomedical and health technologies. The collaboration will also involve joint publications, workshops, international conferences and symposia, and coordinating joint research proposals. Through this partnership, PolyU AP and the WIN are poised to make significant contributions towards solving pressing global challenges in the areas of functional devices, clean energy and environmental applications, and biomedical and health technologies. Link to the Research Centre: https://www.polyu.edu.hk/rcnn/

2024 Departmental Outstanding PolyU Young Alumni Award in Scholarly Achievement

We are delighted to share that Prof. Kai ZHANG has been awarded the 2024 Outstanding PolyU Young Alumni Award in Scholarly Achievement of the Department of Applied Physics. Prof. Kai Zhang's groundbreaking research has focused on the development of novel terahertz optoelectronic devices, making significant contributions to the field. His work has centred on the preparation of wafer-scale low-dimensional narrow bandgap semiconductor materials, such as black phosphorus as well as local field tuning and heterogeneous integration of terahertz devices, resulting in the development of high-speed and high-sensitivity terahertz detectors. These innovative terahertz detectors have been applied in terahertz imaging diagnosis and tissue detection systems at Huashan Hospital, allowing the hospital to realize the characterization of various biological samples, including tumors, lesions, and Achilles tendons. In recognition of his exceptional achievements, Prof. Zhang has been honoured with numerous accolades, including the 2020 "China Semiconductor Top Ten Research Progress Nomination Award," the 2021 NR45 Young Innovators Award, and the first prize of the 2022 China Association of Inventions "Invention and Entrepreneurship Award Innovation Award." Beyond his research achievements, Prof. Zhang has been an active contributor to the academic community, publishing over 100 scientific papers, writing review articles and book chapters, and delivering numerous invited presentations at leading international conferences. He has also taken on leadership roles, including serving as the Vice Chair of the 5th International Conference on Two-Dimensional Materials and Technology as well as the Organizing Committee Member of the 5th International Conference on Optoelectronics and Microelectronics Technology and Applications. Congratulations to Prof. Zhang for his significant contributions to the community!

2024 Departmental Outstanding PolyU Alumni Award in Professional Achievement

It is our great honour to announce that Mr. Dave CHEN, Head of Information Technology at the Hong Kong Trade Development Council (HKTDC), has been awarded the 2024 Outstanding PolyU Alumni Award in Professional Achievement by the Department of Applied Physics. Mr. Chen has over 20 years of experience in IT management and consultancy, and has been actively involved in various professional bodies, sharing his expertise within the industry and with other parties. In August 2023, he was recognized with the "World CIO 200 Award" in the "Legend Category" by the Global CIO Forum, which honours industry experts and their great achievements from 50 countries. Most recently, in 2024, Mr. Chen received the "Leadership Award in Open Architecture Standard" from The Open Group, being the sole awardee from Hong Kong. This award highlights his exceptional efforts in contributing to the Enterprise Architecture (EA) community and implementing cutting-edge architecture in HKTDC's digital projects. Beyond his professional accomplishments, Mr. Chen has been a steadfast supporter and contributor to PolyU. He was the speaker in career talks and departmental review meetings as well as the interviewee in several promotional videos. He was also the guest speaker for the master programme. Since 2020, he has served as a mentor in the PolyU Inspire Mentorship program, sharing his valuable experience with students.   Congratulations to Mr Chen for his significant contributions to AP, the Faculty, the University and the community!  

Shafayet Yaseen Wins Prestigious Erasmus Mundus Scholarship

It is pleased to announce that Shafayet Yaseen, a student from the Department of Applied Physics (AP) at The Hong Kong Polytechnic University, has been awarded the prestigious Erasmus Mundus Scholarship. This scholarship, which accepts only up to 100 students worldwide each year with a highly selective acceptance rate of 3-5%, is a testament to Yaseen's academic and leadership excellence. The Erasmus Mundus Scholarship is on par with the selectivity of renowned institutions such as Harvard, Stanford, MIT, and Oxford. Yaseen's passion, outstanding academic achievements and strategic submissions of two recommendation letters respectively from Prof Artur Erbe of Helmholtz Zentrum Dresden Rossendorf and a distinguished industrialist in Bangladesh played crucial roles in securing this scholarship. Throughout the application process, Yaseen demonstrated exceptional engagement and expertise, impressing the panel during a challenging interview on various complex topics ranging from Quantum Physics and Material Science to Nanotechnology, Chemistry, Thermodynamics, and Solid State Physics. Furthermore, Yaseen's leadership abilities were highlighted through their roles as the President of the International Student Association (ISA) at PolyU and the Vice President of the Hong Kong PolyU English Debate Club. These positions showcased Yaseen's inspiring and effective leadership qualities, which are highly valued by the Erasmus Mundus program. The Department of Applied Physics (AP) and PolyU played a significant role in Yaseen's achievement. Under the guidance of Dr Jiong Zhao and Professor Yuen Hong Tsang, Yaseen gained valuable research experience, contributed to multiple papers, and enhanced their data analysis skills. Yaseen's research internship at Helmholtz Zentrum Dresden Rossendorf in Germany, as well as an exchange program at Nanyang Technological University in Singapore, further exemplified their academic excellence. Currently, Yaseen is actively involved in an innovative project under the Undergraduate Research and Innovation Scheme (URIS), focusing on AI and computer vision for commercial painting applications. The Department of Applied Physics acknowledges Yaseen's significant achievements, and eagerly anticipates the continued impact of his work in the scientific community and beyond.

Prof. Daniel LAU develops high-efficiency CO2 electroreduction system for reducing carbon footprint and progressing carbon neutrality goals

Research on Ferroelectricity Published by Prof. Hao's Group in Nature Communications

In November 2023, a research titled "Direct Observation of Intrinsic Room-Temperature Ferroelectricity in 2D Layered CuCrP₂S₆" was published in Nature Communications. The research was conducted by Prof. Hao's group, with Weng Fu Io, a research student from Prof. Hao's group, as the first author and Prof. Hao as the corresponding author. Nature Communications is one of the world’s top journals which covers a variety of scientific topics from physical sciences to earth and environmental sciences. Its publications include a vast number of high-quality researches with high impact factor. Prof. Hao’s research studies the robust out-of-plane ferroelectricity in two-dimensional layered CuCrP₂S₆ at room temperature down to 2.6 nm, which is a potential candidate for realizing low-dimensional multiferroicity. Throughout this study, the origin of the robust ferroelectric behaviors at atomic perspective is revealed. Article in Nature Communication: https://www.nature.com/articles/s41467-023-43097-2

Dr. Kathy LENG receives Croucher Tak Wah Mak Innovation Award 2023

AP 11 Scholars ranked The World’s Top 2 Percent Scientists by Stanford University

11 PolyU Science Scholars are ranked as the World's Top 2% most-cited scientists for 2023 by Stanford University.   Using the Scopus author profiles as of 1 Oct 2023, Stanford University released the latest top 2% scientists in various scientific fields. The list was prepared by Prof. John Ioannidis and his team from Stanford University, the updated database (version 6) provides standardized information on citations, h-index, co-authorship-adjusted hm-index, citations to papers in different authorship positions, and a composite indicator.  Download the latest database (version 6):  https://elsevier.digitalcommonsdata.com/datasets/btchxktzyw/6 Congratulations to our top scientists!     Name of Researcher Subject Field  Prof. Lau Shuping  Applied Physics  Prof. Chai Yang  Nanoscience & Nanotechnology  Prof. Hao Jianhua  Nanoscience & Nanotechnology  Prof. Loh Kian Ping  Nanoscience & Nanotechnology  Prof. Wu Tao  Nanoscience & Nanotechnology  Prof. Yan Feng  Nanoscience & Nanotechnology  Prof. Huang Haitao  Nanoscience & Nanotechnology  Prof. Yu Siu Fung  Optoelectronics & Photonics  Prof. Tsang Yuen Hong  Nanoscience & Nanotechnology  Dr Zhang Biao  Nanoscience & Nanotechnology  Dr Yin Jun  Nanoscience & Nanotechnology