ZnS:Mn2+粉末通常采用高温固相的方法在保护性气氛(如氮气、氩气)中合成,在光照、力的刺激下发出黄光。我们在热碳还原(TCRA)气氛下合成了Mn2+掺杂的ZnS荧光粉,通过调控Mn2+离子浓度,ZnS:Mn2+荧光粉的ML, PL和PersL光谱均可从585 ...
量子点荧光ZnS水溶性半导体纳米晶体应用制备元素组成量子点(Quantum dots,QDs)X称为半导体纳米晶体(Semiconductor nanocrystal),一般由Ⅱ-Ⅳ、Ⅲ—Ⅴ或Ⅳ-Ⅵ族的元素组成,能够接受光激发产生荧光。与传统的荧光试剂相比具有激发谱带宽、发射谱带窄、发射波长可调、抗漂白能力强等优点。张宝华吴芳英陈玉凤分析化学...
ZnS Mn2 (aq),该反应的平衡常数K=___。 (3)在强酸性条件下加入MnO2 氧化Fe2 的离子方程式为___。 (4)“除铁”时需要调节pH 约为3~4,过滤所得的滤渣2 中除MnO2 以外的另一种物质是___。(写化学式) (5)该工艺流程中可以循环利用的物质是___。相关知识点: 试题来源: 解析 知该工艺流程中可以...
ZnS:Mn2+ Nanocrystals:. Influence of S2- during SynthesisFundamental research on nanocrystalline semiconductors in the past 20 years have yielded very interesting fundamental results, for example on quantum size effects. In many articles potential applications are mentioned, but until now no applications...
摘要: 利用一步溶剂热的方法合成六角结构的ZnS 以及ZnS:Mn2+纳米棒.通过 XRD,SEM,PL,UV-VIS等测试手段对样品结构和光学性能进行表征.结果表明所合成的纳米棒尺寸在10～15 nm.锰的发射峰(4T1-6A1跃迁)位在589 nm. 暂无资源 收藏 引用 分享 推荐文章 ZnS:Mn纳米晶的微结构和发光性能 水溶性ZnS:Mn2量子...
ZnSMn+Fe纳米线光致发光利用溶剂热法制备纤锌矿结构 ZnS:Mn2+(1%)Fe2+(x%)纳米线.实验结果表明:Fe2+离子和Mn2+离子均取代了Zn2+离子的位置掺入到ZnS的晶格中,且 Fe2+离子在ZnS:Mn2+(1%)纳米线中的最大掺杂浓度为15%.ZnS:Mn2+(1%)Fe2+(x%)纳米线的光学性质表明,纳米线具有来 自于Mn2+离子4T1-6A1...
Kuang Xiao-Yu a bLu Wei aElsevier LtdJournal of Physics and Chemistry of SolidsDie Dong,Kuang Xiao-Yu,Lu Wei.Analysis of ground-state zero-field splitting for Mn2+ in hexagonal ZnS: Mn2+.Journal of Physics and Chemistry of Solids. 2003...
Exploring Mn-doped ZnS quantum dots for the room-temperature phosphorescence detection of enoxacin in biological fluids. Long-lived Mn2+ emission in nanocrystalline ZnS:Mn2+. Physical Review B, 1998, 58(24): 15997-16000. [13] HE Y, WANG H F, YAN X P. Exploring ... Y He,HF Wang,XP...
Photoelectrochemical Characterization of Nanocrystalline ZnS:Mn2+ LayersPhotoelectrochemical Characterization of Nanocrystalline ZnS:Mn2+ LayersExperimental/ electrochemical electrodesII-VI semiconductorsmanganesenanostructured materialsphotoconductivityphotoelectrochemistryphotoluminescencezinc...
Mn2+]]> 2+]]>2+]]>doi:10.1515/zna-1977-0710The spin Hamiltonian parameters of 55Mn2+ in cubic ZnS have been determined by means of EPR and central-ion ENDOR, using Ka-band (35 GHz) microwaves. For the first time a value for the spherical electric quadrupole interaction of Mn2+ ...