News Express: UM scholar gives talk on graphene research

新聞快訊:澳大學人分享石墨烯研究

 

孫鵬展
Sun Pengzhan

 


澳大學人分享石墨烯研究

澳門大學今(24)日舉行“澳大學人研究講壇”第20講,由澳大應用物理及材料工程研究院助理教授孫鵬展以“不‘透’的石墨烯究竟有多‘通透’?”為題發表演說。講座現場座無虛席,並有不少中學師生以線上形式參與。

講座上,孫鵬展指石墨烯是由單層碳原子組成,並具有優異電學、光學、機械等性能的傑出二維材料。人們普遍認為,儘管石墨烯及其他二維晶體只有單原子層厚度,其晶格仍能完全阻斷所有氣體和液體的跨膜傳輸。然而,孫鵬展分享他怎樣利用石墨烯密封石墨單晶微腔的全新器件結構,將氣體跨膜傳輸的測量精度相較此前領域內的最高水準提高了8至9個數量級。他又以該測量精度為基礎,發現氫分子反常穿透石墨烯晶格(比氫分子尺寸還要小的氦原子無法穿透)的現象。相關研究為科研界帶來了新的視角,有助於推動納米技術和新材料的應用發展。

孫鵬展先後於2012年和2016年獲得清華大學機械工程及自動化學士學位和材料科學與工程博士學位。他的研究專注於強限域空間中物質輸運過程的基礎及應用,近年來則圍繞二維晶體構建納米及亞納米尺度限域通道,並研究其中離子、原子和分子的選擇輸運特性,相關結果發表在眾多國際頂級學術期刊上。他曾獲選為《麻省理工科技評論》“35歲以下科技創新35人”(中國),並獲得國家自然科學基金優秀青年基金項目(港澳)、美國材料研究學會研究生獎等。

“澳大學人研究講壇”,由澳大研究服務及知識轉移辦公室於2021年開始舉辦,至今已成功舉辦20場,涉及領域包括生物醫藥、智慧城市、集成電路、新型材料等澳大前沿優勢學科;通過邀請傑出的澳大學人以通俗易懂的方式介紹其前沿研究成果,引導大眾和青年學生了解研究創新的社會意義和價值,以及與日常生活密切關聯的應用性,有效提升大眾和青年學生的科學素養。

欲瀏覽官網版可登入以下連結:
https://www.um.edu.mo/zh-hant/news-and-press-releases/presss-release/detail/59110/

 

UM scholar gives talk on graphene research

The University of Macau (UM) held a talk titled ‘How Permeable is the Impermeable Graphene?’ as the 20th UM Scholar Research Forum. Sun Pengzhan, assistant professor in the Institute of Applied Physics and Materials Engineering, was the speaker. The talk attracted a full house, with many local secondary school students and teachers also participating online.

During the talk, Prof Sun mentioned that graphene, which consists of only one atomic layer of carbon atoms, is a two-dimensional material with excellent electronic, optical, and mechanical properties. He also explained how his innovative device, which consists of small monocrystalline containers tightly sealed with graphene, can significantly improve the accuracy of detecting gas permeation through membranes by eight to nine orders of magnitude compared to the previous highest standards in the field. The relevant research provides new perspectives to the research community and helps promote the applications of nanotechnology and new materials.

To read the news on UM’s official website, please visit the following link:
https://www.um.edu.mo/news-and-press-releases/presss-release/detail/59110/