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@ARTICLE{Nesheva:57069,
      author       = {Nesheva, D. and Aneva, Z. and Reynolds, S. and Main, C. and
                      Fitzgerald, A. G.},
      title        = {{P}reparation of micro- and nanocrystalline {C}d{S}e and
                      {C}d{S} thin films suitable for sensor applications},
      journal      = {Journal of optoelectronics and advanced materials},
      volume       = {8},
      issn         = {1454-4164},
      address      = {Bucharest},
      publisher    = {INOE $\&$ INFM},
      reportid     = {PreJuSER-57069},
      pages        = {2120 - 2125},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Thin films of CdS (30-200 nm) and CdSe (10-100 nm) are
                      prepared by physical vapour deposition using one-step (for
                      CdS and CdSe) or step-by-step (for CdSe only) approach.
                      Atomic force microscopy measurements reveal a grain size
                      decrease with decreasing layer thickness. The effect is
                      strongest in the step-by-step CdSe layers. Raman scattering
                      measurements show an anticipated gradual increase of the
                      scattered light from CdS layers with thickness and a
                      non-monotonous change in the CdSe group, the intensity is
                      strongest for the '50 nm' 'step-by-step' CdSe layer. This
                      observation is ascribed to a size-induced increase of the
                      optical band gap of a part of the microcrystals whose
                      estimated size is similar to 8 nm. Room temperature
                      investigations of the effect of exposure to a set of vapours
                      (water, ethanol, ammonia, acetone, iodine) on the dc dark
                      and steady state photoconductivity of CdS layers show a
                      reasonable response of all US layers to water vapour. CdSe
                      layers are rather insensitive with the exception of the '50
                      nm' layer, as the 'step-by-step' layer shows the best
                      sensitivity to all vapours. The observed good
                      gas-sensitivity of the 'step-by-step' CdSe layers is
                      ascribed to a much greater integral interface area between
                      nanocrystals and indicates that 'step-by-step' deposition of
                      CdSe layers is quite promising for gas-sensor applications.},
      keywords     = {J (WoSType)},
      cin          = {IPV},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB46},
      pnm          = {Erneuerbare Energien},
      pid          = {G:(DE-Juel1)FUEK401},
      shelfmark    = {Materials Science, Multidisciplinary / Optics / Physics,
                      Applied},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000242568300028},
      url          = {https://juser.fz-juelich.de/record/57069},
}