Nanoscale materials in chemistry 3D 2D Energy Energy Energy Energy Bulk Quantum Well Quantum Wire Quantum Dot FIGURE 2.5 Formation of a zero-dimensional (0D)quantum dot by the fommal reduction of dimensions,correlating with the continuing discretization of the energy states. Cited from Nanoscale Materials in cCemistry;Edited by Kenneth J.Klabunc
Nanoscale materials in chemistry Cited from Nanoscale Materials in cCemistry; Edited by Kenneth J. Klabunde
固体：吸收一反射 溶液：吸收分透射 Light (a 650nm 580nm 700 nm 400nm 560nm Ti(H2O),3+ 430nm 490nm (b)
固体: 吸收反射 溶液: 吸收透射
Nano-scale materials in chemistry Nano materials:materials that have a dimension on the 10-100nm Scle.(任何至少有一个维度的尺寸小于100nm或由小于100nm的基本单元组成的材料) 2D Graphene C Nanotubes(CNTs) Fullerenes 石墨烯 C纳米管 富乐烯 http://www.google.com.tw/imgres?q=fullerenc&hl Cited from Nanoscale Materials in Chemistry;Edited by Kenneth J.Klabunde
Nano-scale materials in chemistry Nano materials: materials that have a dimension on the 10-100nm scale.(任何至少有一个维度的尺寸小于100nm或由小于100nm的基本单元组成的材料) http://www.google.com.tw/imgres?q=fullerene&hl Cited from Nanoscale Materials in Chemistry; Edited by Kenneth J. Klabunde Fullerenes 富乐烯 C Nanotubes (CNTs) C 纳米管 Graphene 石墨烯
Nano-Materials OD nanomaterials:Nano particles(原子团簇、纳米微粒等). 100 nm 200 nm 100 nm 黄页风 ww.huangye88.com Monodispersed Ag nano particles Commercial Ag nano particles
Nano-Materials 0D nanomaterials:Nano 0D nanomaterials:Nano nanomaterials:Nano particles particles (原子团簇、纳米微粒等). Monodispersed Ag nano particles Commercial Ag nano particles
Nanoscale materials (1)小尺寸效应：当纳米微粒尺寸与光波波长、传导电子的德布 罗意波长及超导态的相干长度、透射深度等物理特征尺寸相当或 更小时，它的周期性边界被破坏，从而使其声、光、电、磁，热 力学等性能呈现出“新奇”的现象。 Ep.I:The nano-scale copper particles are non conductive. Ep.2:Gold particles less than 20 nm in diameter melt at a far lower temperature than bulk gold.(Tmp.=1337.33K,1064.18)
（1）小尺寸效应：当纳米微粒尺寸与光波波长 ：当纳米微粒尺寸与光波波长、传导电子的德布 、传导电子的德布 罗意波长及超导态的相干长度、透射深度等物理特征尺寸相当或 、透射深度等物理特征尺寸相当或 更小时，它的周期性边界被破坏 ，它的周期性边界被破坏，从而使其声、光、电、磁，热 力学等性能呈现出“新奇”的现象。 Ep.1: The nano-scale copper particles are non conductive. Nanoscale materials Ep.2:Gold particles less than 20 nm in diameter melt at a far lower temperature than bulk gold. (Tm.p.=1337.33 K ,1064.18 °)