文章信息/Info

Title:

Design and Characterization of Atom and Electron Structure at Materials Interface

作者:

張振華; 劉偉偉; 許并社; 郭俊杰

（1.杭州電子科技大學材料與環境工程學院，浙江 杭州 310018）（2.太原理工大學 新材料界面科學與工程教育部重點實驗室，山西 太原 030024）

Author(s):

ZHANG Zhenhua;  LIU Weiwei;  XU Bingshe;  GUO Junjie

(1.College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China) (2.Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education,

關鍵詞:

界面; 原子結構; 電子結構; 透射電子顯微鏡

Keywords:

interface;  atomic structure;  electronic structure;  transmission electron microscope

分類號:

TN383

DOI:

10.7502/j.issn.1674-3962.201809011

文獻標志碼:

A

摘要:

材料的變形與相變、晶體生長、電荷分離傳輸、催化反應等過程均涉及到材料中的界面問題，并且緊密依賴于界面附近的原子和電子結構。因此，可以通過調控材料的界面原子、電子結構來賦予材料特殊的新功能。介紹了材料界面研究的最新進展，枚舉了研究者如何獲得固-固材料界面的原子結構，在光催化和太陽能電池中如何利用界面分離和電荷傳輸及電子全息技術定量分析二維電子氣，以及在材料生長和催化過程中的固-液和固-氣界面演化。這些研究結果展示了人們對界面原子、電子結構前所未有的認知，這些科學而直觀的構效關系對于啟發研究者設計和構筑更加精細、高效的界面結構提出了新思路。

Abstract:

The progresses such as mechanical deformation and phase transition, crystal growth, charge separation and transportation, catalysis are basically interface problems in materials. These interface phenomena depend on the atomic configuration and electronic structure at interfaces. Accordingly, we can endow the materials specialized functions by design the interface structures at atomic and electronic scale. In this brief review, three interfaces, solid�瞫olid, solid�瞝iquid and solid�瞘as are discussed. New research progresses on interface of materials, including the atomic structure characterization, the interface application on charge separation in photocatalysis and solar cell, visualization and quantification of 2D electron gas using inline electron holography, the evolution of interface during materials growth and catalysis are introduced. These new findings show an unprecedented knowledge on the atomic structure and electronic structure of material interface. The structure and property relationship was revealed directly and would inspire creative works to design more complex and efficient material interfaces.