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

Shafayet Yaseen Interviewed By South China Morning Post

Shafayet Yaseen, a Bangladeshi student studying engineering physics in the Department of Applied Physics at the Hong Kong Polytechnic University, received an interview from the South China Morning Post to share his remarkable learning journey as an international student in the department as well as Hong Kong. Yaseen expressed deep appreciation for the distinguished professors and the world-class learning environment here, being recommended by his professors to join international research laboratories in Germany. He passionately encourages fellow Bangladeshi students to explore the thriving education landscape here with an open mind to reach for abundant opportunities and valuable connections.   Shafayet Yaseen是來自孟加拉於本系就讀工程物理學士課程的三年級學生。他早前接受了《南華早報》的訪問，並分享了他作為國際學生於本系及在港的學習體驗。他曾獲得本系教授們的推薦，前往了德國的國際研究實驗室進行研究，並對此讚揚本系教授和本校世界級的學習環境。他勉勵孟加拉學生持開放態度探索這邊的蓬勃發展，以尋求大量機遇和具價值的人際網絡關係。   South China Morning Post: https://www.scmp.com/news/hong-kong/education/article/3244285/can-hong-kongs-top-universities-attract-overseas-students-scholars-security-law-deters-some-not-main

4 AP Academics were listed as the World’s Most Highly Cited Researchers

4 AP scholars have been recognized as the world’s most highly cited researchers in 2023 by Clarivate Analytics.  This honour certainly served as an acknowledgment of their significant research impact, which is demonstrated by their publication of multiple papers that have been frequently cited by fellow academics. With respect to the production of multiple highly-cited papers that rank in the top 1% by citations for field and year in the Web of Science citation index over the last 11 years, the list of “Highly Cited Researchers 2023” is a well-known indicator to identify the most influential scholars from around the world. Congratulations to Prof. Daniel S.P. LAU, Prof. Kian Ping LOH, Prof. Tom Tao WU and Prof. YAN Feng for their contributions to society and the world!

Dr. Kathy LENG lauded in MIT Technology Review Innovators Under 35 Asia Pacific 2023

AP graduating PhD students received the PolyU PhD Thesis Award for Merit

To recognize, honor, and promote the outstanding research accomplishments of graduating PhD students, the Graduate School establishes the PhD Thesis Award with two award classes: Outstanding and Merit.   Congratulations to Dr HOU Zhen on receiving the PolyU PhD Thesis Award for Merit. His thesis focuses on understanding Zn nucleation and growth towards stable Zn metal batteries.  Thesis Title: Boosting zinc metal anodes performance via interface engineering: reaction kinetics, morphology control and electrochemical reversibility Chief Supervisor: Dr ZHANG Biao The thesis is devoted to reversible Zn metal anodes through regulating the Zn nucleation and growth. We first demonstrate that the slow desolvation kinetics elevates the nucleation overpotential for improving the nucleation sites through introducing acetonitrile co-solvent into the electrolyte. The electrolyte recipe is further tailored to produce abundant Zn nucleation seeds and smooth Zn growth. The designed oligomer co-solvent enables preferential surface adsorption and the optimized solvation sheath. Furthermore, we propose a facile pulsed cycling protocol where an initial high current density (J) is leveraged to form sufficient nuclei for guiding even metal deposition at standard J in the subsequent process, realizing high-performance Zn, Li and K metal batteries. Besides modulating the Zn nucleation, we also control the Zn growth process by constructing a metallic tin-coated separator. Specifically, its decent electrical conductivity and zincophilicity can eliminate the inevitably formed Zn dendrites via face-to-face Zn growth, thus enabling improved cycle life even at high J and cycling capacity.    

AP student wins the Pixel of PolyU Photo Competition

Dr Kathy LENG awarded the Nation’s Excellent Young Scientists Fund

The National Natural Science Foundation of China (NSFC), under the Ministry of Science and Technology, has honored Dr. Kathy K. Leng, an Assistant Professor in the Department of Applied Physics, with the prestigious Excellent Young Scientists Fund (Hong Kong and Macao) for the year 2023. Her awarded research project “Molecularly Thin 2D Hybrid Perovskite and Innovative Devices” studied molecularly thin 2D hybrid perovskites, a new class of 2D materials with the characteristics of high structural flexibility and interesting optoelectronic properties. The ability to tune the responses of such materials by external stimuli enables applications in intelligent and functional devices. They also serve as new platforms for fundamental physics studies. Dr. Leng will continue her research on the large-scale growth and device applications of these materials.   Ta Kung Pao: http://www.takungpao.com.hk/news/232109/2023/0915/892659.html Wen Wei Po: https://polyu.me/3PDxDHQ

Prof Feng YAN was interviewed by Nature Portfolio

Prof. Feng YAN, ADoRI-IWEAR & Chair Professor of Organic Electronics, heads a research group that specializes in advanced materials, including organic semiconductors and perovskite materials. His research includes the development of field-effect transistors and ultra-high-sensitivity biosensors, which have made significant global impacts. Yan and his team have also demonstrated that two-dimensional conjugated metal organic frameworks are excellent semiconductor materials for high-performance electrochemical transistors (ECTs). These ECTs have promising applications in flexible and wearable electronics, as well as in bioelectronics and neuromorphic devices. In addition, Yan's team is exploring the use of perovskites as an alternative to silicon-based solar cells, and has made significant breakthroughs that improve the efficiency and stability of perovskite solar cells in an ambient atmosphere. Yan's leadership in advanced materials is a prime example of PolyU AP's scientific focus on contributing to society.   Article in Nature Portfolio: https://www.nature.com/articles/d42473-023-00143-3