Co-doped ZnO

Miscellaneous BaC03, SmP04, Sn4P3, Zn doped Sn02, Zn doped CdS, Nd doped Ti02, Mn doped ZnS, Nd doped Ti02, Mn.Cr.Co doped ZnO... 

By making the Au nanorods liom hydrophilic to hydrophobic, the nanorods can be made to self-assemble on a substrate by simple evaporation (63). Au nanorods prepared using hexadecyl trimethylammonium bromide are hydrophilic. But they can be made hydrophobic by treating them with mercaptopropyltrimethoxysilane and octadecyltrimethoxy silane. Depending on the concentration of the nanorods in the solution, they assemble either parallel to the substrate (at low concentration) or perpendicular to the substrate (at higher concentration). Nanorod arrays can also be prepared by electrochemieal self-assembly on substrates (64). For example, Mn, Co doped ZnO nanorod arrays on Cu substrates have been prepared by electrochemical self-assembly... 

Raman scattering was often applied for studying the phonon modes of ZnO bulk samples [31-38], It has become a fast and reliable tool to study ZnO thin films [29,38-43], and ZnO nano- and/or microstructures [44-46]. Raman scattering studies were also reported for ZnO samples doped with Li [43, 47, 48], N [43, 49-51], A1 [48, 52-54], P [43, 55], Mn [43, 56-58], Fe [43, 48], Co [43], Ni [43], Cu [43], Ga [48, 51], As [59], Ce [60], or Sb [48, 61], and (Mg,Cd)xZni a 0 [43, 62] samples. IR reflection [63-65] and transmission measurements [66-68] were reported mainly for ZnO bulk materials. IR optical studies of doped ZnO and ZnO-based thin films are, in general, restricted to transmission and reflection measurements in the near-IR (NIR) spectral region, and to highly conductive Al-doped ZnO thin films. Some experiments were performed in the mid-IR (MIR) spectral region [52,69,70], where the optical phonon modes can be studied. Recently, IRSE was applied to study undoped and doped ZnO films, and ZnO-based alloy films [30,38,43,62,71-74]. 

The number of spectroscopic studies of ZnO and related materials in the spectral region around the fundamental band gap is too large to be listed here. Undoped and doped ZnO as well as ZnO-based alloy samples were studied by photoluminescence (PL), transmission and reflection measurements (see review articles [6,75]). Also, SE measurements were reported for ZnO [76-85] and related materials, for instance, metal-doped ZnO [70,86-89], Mg, Zni ,() [15,16,82,90,91], Co.Zm O [92], Mn.Zm O [93], or Fe Zm O [94],... 

Co, Mn, Ti Thermal activation energy and density of deep donor-hke levels in 3d-doped ZnO hlms, Schottky contacts (DLTS) [81,82]... 

Gonga H, Hu JQ, Wang JH, Ong CH, Zhub FR (2006) Nano-crystaUine Cu-doped ZnO thin film gas sensor for CO. Sens Actuators B Chem 115 247... 

Bourret-Courchesne, E. D., Derenzo, S. E., Weber, M. J. 2007. Semiconductor scintitlators ZnO and Pblj Co-doping studies. Nuclear Instruments and Methods in Physics Research A 579 1-5. 

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