scholarly journals Localized Strain Measurement in Molecular Beam Epitaxially Grown Chalcogenide Thin Films by Micro-Raman Spectroscopy

ACS Omega ◽  
2020 ◽  
Vol 5 (14) ◽  
pp. 8090-8096
Author(s):  
Qiu Li ◽  
Yong Wang ◽  
Tiantian Li ◽  
Wei Li ◽  
Feifan Wang ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Strain Measurement ◽  
Molecular Beam ◽  
Micro Raman Spectroscopy ◽  
Chalcogenide Thin Films

PREFERENTIAL ORIENTATION GROWTH OF AlN THIN FILMS ON Si(111) SUBSTRATES BY PLASMA-ASSISTED MOLECULAR BEAM EPITAXY

2009 ◽  
Vol 16 (06) ◽  
pp. 925-928 ◽  
Author(s):  
L. S. CHUAH ◽  
Z. HASSAN ◽  
H. ABU HASSAN
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
X Ray Diffraction ◽  
X Ray ◽  
Micro Raman Spectroscopy ◽  
Raman Modes ◽  
Orientation Growth ◽  
Good Agreement

This article reports the use of plasma-assisted molecular beam epitaxy (MBE) to grow AlN on Si (111) substrate at 850°C under UHV conditions for 15, 30, and 45 min. The films were characterized by high-resolution X-ray diffraction (HR-XRD) and micro-Raman spectroscopy. XRD measurement revealed that the AlN was epitaxially grown on Si (111). Micro-Raman result showed that all the allowed Raman modes of AlN and Si were clearly visible. Fourier transform infrared (FTIR) spectroscopy has been used to investigate the A1 (LO) and E1 (TO) modes with frequencies (890–899) cm-1 and (668–688) cm-1, respectively. The results are in good agreement with reported phonon frequencies of AlN grown on Si (111).

Raman Spectroscopy: A Unique Tool for the Study of Thin Films

2000 ◽  
Vol 615 ◽  
Author(s):  
Ingrid De Wolf
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Local Stress ◽  
Micro Raman Spectroscopy

ABSTRACTIn this paper, the different applications of Raman spectroscopy for the study of thin films is briefly discussed, using examples from microelectronics. Special attention is given to the application of micro-Raman spectroscopy for the measurement of local stress in and near films.

Structural investigation of Bi doped InSe chalcogenide thin films using Raman spectroscopy

2015 ◽  
Author(s):  
Shaveta Sharma ◽  
Rita Sharma ◽  
Praveen Kumar ◽  
Ravi Chander ◽  
R. Thangaraj ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Structural Investigation ◽  
Chalcogenide Thin Films

scholarly journals Origin of Ultraviolet Luminescence from Bulk ZnO Thin Films Grown by Molecular Beam Epitaxy

2011 ◽  
Vol 1 ◽  
pp. 135-139 ◽  
Author(s):  
M. Asghar ◽  
Khalid Mahmood ◽  
Adnan Ali ◽  
M.A. Hasan ◽  
I. Hussain ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Molecular Beam Epitaxy ◽  
Room Temperature ◽  
Molecular Beam ◽  
Energy Dispersive ◽  
Zno Thin Films ◽  
X Ray Diffraction ◽  
X Ray ◽  
Uv Luminescence

Origin of ultraviolet (UV) luminescence from bulk ZnO has been investigated with the help of photoluminescence (PL) measurements. Thin films of ZnO having 52%, 53% and 54% of Zn-contents were prepared by means of molecular beam epitaxy (MBE). We observed a dominant UV line at 3.28 eV and a visible line centered at 2.5 eV in the PL spectrum performed at room temperature. The intensity of UV line has been found to depend upon the Zn percentage in the ZnO layers. Thereby, we correlate the UV line in our samples with the Zn-interstitials-bound exciton (Zni-X) recombination. The results obtained from, x-ray diffraction, the energy dispersive X-ray spectrum (EDAX) and Raman spectroscopy supported the PL results.

Polarized micro-Raman spectroscopy study of pentacene thin films

2009 ◽  
Vol 94 (13) ◽  
pp. 133301 ◽  
Author(s):  
Ingrid Stenger ◽  
Alexandre Frigout ◽  
Denis Tondelier ◽  
Bernard Geffroy ◽  
Razvigor Ossikovski ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Spectroscopy Study ◽  
Micro Raman Spectroscopy

Modification in structure of La and Nd co-doped epitaxial BiFeO3 thin films probed by micro Raman spectroscopy

2015 ◽  
Vol 46 (7) ◽  
pp. 636-643 ◽  
Author(s):  
Anju Ahlawat ◽  
S. Satapathy ◽  
V. G. Sathe ◽  
R. J. Choudhary ◽  
M. K. Singh ◽  
...  
Keyword(s):  
Thin Films ◽  
Raman Spectroscopy ◽  
Micro Raman Spectroscopy ◽  
Bifeo3 Thin Films ◽  
Co Doped
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