Growth of PbS： Ni2＋ Nanocrystals Thin Films by Chemical Bath

PbS nanocrystalline films growth by chemical bath deposition （CBD） onto glass at deposition temperature of 20 ℃. Different doping level was obtained by changing the volume of regent solution V[Ni2＋] into PbS growing solution. Scanning Electron Microscopy （SEM）, atomic force microscopy （AFM）, X-ray d...

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Published in:材料科学与工程：中英文A版 2012, Vol.2 (5), p.410-422
Main Author: Melissa Chavez Portillo Javier Martinez Juarez Gustavo Abarca Avila Marcial Zamora Tototzintle MacarioMartinez Barragan Jorge. R. Cema Martin Lazcano Hernandez Salvador Rosas Castilla Brenda CrespoSnchez Andrea Celeste Palacios Lopez and Oscar Portillo Moreno
Format: Article
Language:Chinese
Subjects:
PBS
化学浴沉积
原子力显微镜
扫描电子显微镜
掺杂浓度
纳米晶薄膜
透射电子显微镜
镍掺杂
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Summary:PbS nanocrystalline films growth by chemical bath deposition （CBD） onto glass at deposition temperature of 20 ℃. Different doping level was obtained by changing the volume of regent solution V[Ni2＋] into PbS growing solution. Scanning Electron Microscopy （SEM）, atomic force microscopy （AFM）, X-ray diffraction （XRD）, optical absorption （OA） and Transmission Microscopy Electronic （TEM） measurements were carried out to characterize the films. Using the SEM and AFM, the morphological changes were analyzed.The spectra of x-rays show the angular positions of peaks： 20= （26.00, 30.07, 43.10, 51.00 and 53.48）, growth on zinc blende face. The grain size （GS） of the sample undoped -36 nm and doped in range of-32-5 nm, calculated by employing Scherer＇s formula. The average GS in the prepared films is observed to be increased wit increase V[Ni2] doping. Samples are found to be crystalline by TEM in range of 3.5-5 nm very similar to size calculated from XRD. Due to the doping, forbidden band gap energy （Eg） shift show a r
ISSN:2161-6213