Optical Properties and Structural Characterizations of Sb2S3 Thin Films Deposited by Chemical Bath Deposition Technique

F. I. EZEMA; A. B. C. EKWEALOR; P. U. ASOGWA

Makale detayları

Optical Properties and Structural Characterizations of Sb2S3 Thin Films Deposited by Chemical Bath Deposition Technique

Yazarlar:

F. I. EZEMA | A. B. C. EKWEALOR | P. U. ASOGWA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2007 Vol.31 Issue 4, pp.205-210

Belge Tipi:

Makale

Yayın Tarihi:

3/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000761126

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Anahtar kelimeler:

Özet:

 

Thin films of Sb2S3 were deposited on glass substrates at  300 K by chemical bath deposition (CBD) technique and annealed at  various temperatures.  The absorption coefficient a was  determined using the absorbance and transmission measurements from a  Unico UV-2102 PC spectrophotometer, at normal incidence of light in  the wavelength range 200--1000 nm, and the structural characterization  were done using XRD and photomicrograph.  The films have high  absorption, greater than 90%, in the UV region but with moderate  transmittance of greater than 50% for as-deposited, and poor  transmittance of less than 45% for the annealed throughout the  entire spectrum.  Plots of (a hv)2 against hv showed that the  material has a direct band gap around 2.20 eV at 300 K, 1.70 eV at 453  K, and 1.60 eV at 473 K. The high absorbance of the films made them  good materials for large area selective coatings for photothermal  conversion of solar energy.

 

Thin films of Sb2S3 were deposited on glass substrates at  300 K by chemical bath deposition (CBD) technique and annealed at  various temperatures.  The absorption coefficient a was  determined using the absorbance and transmission measurements from a  Unico UV-2102 PC spectrophotometer, at normal incidence of light in  the wavelength range 200--1000 nm, and the structural characterization  were done using XRD and photomicrograph.  The films have high  absorption, greater than 90%, in the UV region but with moderate  transmittance of greater than 50% for as-deposited, and poor  transmittance of less than 45% for the annealed throughout the  entire spectrum.  Plots of (a hv)2 against hv showed that the  material has a direct band gap around 2.20 eV at 300 K, 1.70 eV at 453  K, and 1.60 eV at 473 K. The high absorbance of the films made them  good materials for large area selective coatings for photothermal  conversion of solar energy.

Makale detayları

Optical Properties and Structural Characterizations of Sb2S3 Thin Films Deposited by Chemical Bath Deposition Technique

Yazarlar:

F. I. EZEMA | A. B. C. EKWEALOR | P. U. ASOGWA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2007 Vol.31 Issue 4, pp.205-210

Belge Tipi:

Makale

Yayın Tarihi:

3/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000761126

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Turk. J. Phys.

31

(2007)

205-210. Full text: pdf Other articles published in the same issue: Turk. J. Phys.

vol.31

iss.4.

Sayı

Makale detayları

Optical Properties and Structural Characterizations of Sb2S3 Thin Films Deposited by Chemical Bath Deposition Technique

Yazarlar: F. I. EZEMA | A. B. C. EKWEALOR | P. U. ASOGWA

Yayıncı: TUBITAK

Dergi: Turkish Journal of Physics 2007 Vol.31 Issue 4, pp.205-210

Belge Tipi: Makale

Yayın Tarihi: 3/2007

Belge Dili: Türkçe

Document ID (Org No.): 2000761126

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

Turk. J. Phys.

31

(2007)

205-210. Full text: pdf Other articles published in the same issue: Turk. J. Phys.

vol.31

iss.4.

Sayı

Yazarlar:

F. I. EZEMA | A. B. C. EKWEALOR | P. U. ASOGWA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2007 Vol.31 Issue 4, pp.205-210

Belge Tipi:

Makale

Yayın Tarihi:

3/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000761126

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101