材料导报
材料導報
재료도보
MATERIALS REVIEW
2009年
z1期
148-150
,共3页
董建会%曾葆青%田时开%单云
董建會%曾葆青%田時開%單雲
동건회%증보청%전시개%단운
ZnO纳米棒%场发射%水热法
ZnO納米棒%場髮射%水熱法
ZnO납미봉%장발사%수열법
ZnO nanorods%field emission%hydrothermal method
利用极其简单的方法,即将氯化锌溶液和氨水按一定配比混合进行水浴加热制备了ZnO纳米棒,其直径约为100nm.利用扫描电子显微镜和能谱仪对其结构和成分进行了分析.场发射测试结果表明,所制备的ZnO纳米棒有较低的开启场和阈值场,分别为2.7V/μm和4.95V/μm,其场增强因子为5390.这样高的场增强因子来源于氧化锌参差的层状结构.
利用極其簡單的方法,即將氯化鋅溶液和氨水按一定配比混閤進行水浴加熱製備瞭ZnO納米棒,其直徑約為100nm.利用掃描電子顯微鏡和能譜儀對其結構和成分進行瞭分析.場髮射測試結果錶明,所製備的ZnO納米棒有較低的開啟場和閾值場,分彆為2.7V/μm和4.95V/μm,其場增彊因子為5390.這樣高的場增彊因子來源于氧化鋅參差的層狀結構.
이용겁기간단적방법,즉장록화자용액화안수안일정배비혼합진행수욕가열제비료ZnO납미봉,기직경약위100nm.이용소묘전자현미경화능보의대기결구화성분진행료분석.장발사측시결과표명,소제비적ZnO납미봉유교저적개계장화역치장,분별위2.7V/μm화4.95V/μm,기장증강인자위5390.저양고적장증강인자래원우양화자삼차적층상결구.
An extremely simple method has been successfully employed to prepare ZnO nanorods.ZnO nanorods with the diameter of about 100nm are prepared by hydrothermal growth in solutions of ammonia and zinc chloride,and the field emission properties are tested.The low values of turn-on field and threshold field are 2.7V/μm and 4.95V/μm,respectively,which are achieved from these nanorods.A high field enhancement factor of 5390 is due to the hierarchical structure of ZnO nanorods.The morphology and the composition of ZnO nanorods are characterized by SEM and EDS.