电镀与涂饰
電鍍與塗飾
전도여도식
ELECTROPLATING & FINISHING
2015年
2期
53-56
,共4页
龙亚平%曾葆青%杨云%柳建龙%吴喆
龍亞平%曾葆青%楊雲%柳建龍%吳喆
룡아평%증보청%양운%류건룡%오철
石墨烯冷阴极%电泳沉积%硝酸盐%场发射
石墨烯冷陰極%電泳沉積%硝痠鹽%場髮射
석묵희랭음겁%전영침적%초산염%장발사
graphene cold cathode%electrophoretic deposition%nitrate%field emission
采用电泳沉积的方法在金属钛片衬底上制备石墨烯冷阴极。研究了Mg(NO3)2·6H2O、Zn(NO3)2·6H2O和Al(NO3)3·9H2O对石墨烯冷阴极表面形貌、成分以及场发射性能的影响。用原子力显微镜(AFM)对自制氧化石墨烯的尺寸和厚度进行了表征,用扫描电镜(SEM)和傅里叶变换红外光谱(FT-IR)分析了石墨烯冷阴极表面的结构和组成。场发射测试结果表明:不同的硝酸盐对电泳制备的石墨烯冷阴极的场发射性能产生了影响。采用Mg(NO3)2·6H2O时,所得的石墨烯冷阴极场发射性能最好,开启场为3.3 V/μm,阈值场为6.3 V/μm。
採用電泳沉積的方法在金屬鈦片襯底上製備石墨烯冷陰極。研究瞭Mg(NO3)2·6H2O、Zn(NO3)2·6H2O和Al(NO3)3·9H2O對石墨烯冷陰極錶麵形貌、成分以及場髮射性能的影響。用原子力顯微鏡(AFM)對自製氧化石墨烯的呎吋和厚度進行瞭錶徵,用掃描電鏡(SEM)和傅裏葉變換紅外光譜(FT-IR)分析瞭石墨烯冷陰極錶麵的結構和組成。場髮射測試結果錶明:不同的硝痠鹽對電泳製備的石墨烯冷陰極的場髮射性能產生瞭影響。採用Mg(NO3)2·6H2O時,所得的石墨烯冷陰極場髮射性能最好,開啟場為3.3 V/μm,閾值場為6.3 V/μm。
채용전영침적적방법재금속태편츤저상제비석묵희랭음겁。연구료Mg(NO3)2·6H2O、Zn(NO3)2·6H2O화Al(NO3)3·9H2O대석묵희랭음겁표면형모、성분이급장발사성능적영향。용원자력현미경(AFM)대자제양화석묵희적척촌화후도진행료표정,용소묘전경(SEM)화부리협변환홍외광보(FT-IR)분석료석묵희랭음겁표면적결구화조성。장발사측시결과표명:불동적초산염대전영제비적석묵희랭음겁적장발사성능산생료영향。채용Mg(NO3)2·6H2O시,소득적석묵희랭음겁장발사성능최호,개계장위3.3 V/μm,역치장위6.3 V/μm。
Graphene cold cathode was prepared on titanium substrate by electrophoretic deposition. The effects of Mg(NO3)2·6H2O, Zn(NO3)2·6H2O, and Al(NO3)3·9H2O on surface morphology, composition, and field emission properties of graphene cold cathode were studied. The size and thickness of the home-made graphene oxide was characterized by atomic force microscopy (AFM). The surface structure and composition of graphene cold cathode were analyzed by scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FT-IR). The field emission measurement indicates that the field emission properties of graphene cold cathode are affected by different nitrates applied. The graphene cathode prepared with Mg(NO3)2·6H2O has better field emission properties. Its turn-on field and threshold field are 3.3 V/μm and 6.3 V/μm, respectively.