主講人：賈艷敏 西安郵電大學(xué)教授

時(shí)間：2022年9月11日10：00

地點(diǎn)：騰訊會(huì)議 886 535 004

舉辦單位：數(shù)理學(xué)院

主講人介紹：賈艷敏，西安郵電大學(xué)理學(xué)院材料物理系三級(jí)教授、博士生導(dǎo)師、陜西省QianRen計(jì)劃創(chuàng)新長(zhǎng)期引進(jìn)人才。目前主要從事鐵電材料熒光及催化研究。1999-2003鄭州大學(xué)學(xué)士，2003-2008中科院上海硅酸鹽所博士（2005-2006香港理工大學(xué)應(yīng)用物理系聯(lián)培），2008-2010荷蘭代爾夫特理工大學(xué)博士后，2010年回國(guó)任特聘教授至今。第一/通訊作者在Nat. Commun. (2篇)、Energy Environ. Sci.、Adv. Mater.、Angew. Chem. Int. Ed.、Nano Energy（6篇)、Appl. Phys. Lett. (10篇).、J. Appl. Phys. (5篇)、《科學(xué)通報(bào)》、《物理學(xué)報(bào)》等發(fā)表論文100余篇。被引用3800余次。四篇ESI前1%高被引和一篇ESI前1‰熱點(diǎn)論文，《物理學(xué)報(bào)》高被引論文作者。主持國(guó)家自然科學(xué)基金面上及青年項(xiàng)目、陜西省重點(diǎn)研發(fā)計(jì)劃、陜西省自然基金、浙江省錢(qián)江人才計(jì)劃等。獲2018中國(guó)科技新銳人物突出貢獻(xiàn)獎(jiǎng)。擔(dān)任中國(guó)電子材料與元器件產(chǎn)學(xué)研平臺(tái)理事兼副秘書(shū)長(zhǎng)等職務(wù)。

內(nèi)容介紹：Ferroelectricity is a characteristic of certain materials that have a spontaneous electric polarization. Firstly, I will introduce my work related on luminescence of rare-earth doped ferroelectric materials. Based on the strong correlation between luminescence performance and crystal symmetry, these materials are designed for non-contact luminescent monitoring the ferroelectric polarization, compositional change, phase boundary, Curie transition, temperature, stress (Mechano-luminescence) and so on. Secondly, I will show my recent work related on some novel catalytic design such as piezo-catalysis, pyro-catalysis and tribo-catalysis of ferroelectric materials. In a typical photocatalytic process, the photo-induced electron–hole pairs can be used to drive chemical catalysis reaction (e. g. Degradation of dye wastewater or to hydrogen evolution from the splitting of water). All ferroelectrics are pyroelectric and all pyroelectrics are piezoelectric. Ferroelectric materials possess the ability to convert vibration energy or cold-hot alternation thermal-energy into electric energy. Some novel catalysis (piezo-catalysis, pyro-catalysis, tribo-catalysis) has been designed and realized on basis of the piezoelectric effect, pyroelectric effect, and triboelectric effect of ferroelectric materials, which is potential for application in dye wastewater degradation, water splitting into hydrogen, N2 fixation and CO2 reduction through harvesting the environmental vibration energy, room-temperature cold-hot fluctuation thermal-energy, or mechanical friction energy.