Photoelectrochemical Investigations on HgxCd1-xSe Thin Film Electrode/Electrolyte System

Vithal Bhivaba Pujari And Lalasaheb Pata DESHMUKH

Makale detayları

Photoelectrochemical Investigations on HgxCd1-xSe Thin Film Electrode/Electrolyte System

Yazarlar:

Vithal Bhivaba Pujari And Lalasaheb Pata DESHMUKH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2008 Vol.32 Issue 2, pp.105-114

Belge Tipi:

Makale

Yayın Tarihi:

1/2008

Belge Dili:

Türkçe

Document ID (Org No.):

2000761027

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Anahtar kelimeler:

Özet:

 

Thin film electrodes of HgxCd1-xSe (0 \le x \le 0.2)  were prepared in an aqueous alkaline medium (pH \cong 11) on highly  conducting stainless steel substrates by chemical bath technique.  Use  of these films was made as an active photoelectrode in an  electrochemical photovoltaic cell, comprising: electrode; sodium  polysulphide electrolyte; and impregnated graphite as a counter  electrode.  The investigations on these cells were made by studying  I-V and C-V characteristics in dark, power output, built-in-potential,  spectral and photo responses.  Cell performance parameters were  evaluated: open-circuit photopotential Vph; and short-circuit  photocurrent Iph; series and shunt resistances Rs and Rsh;  quantum conversion efficiency h ; fill factor ff; junction ideality  factor nd; light quality factor nL; built-in-potential F B; and  the flat-band potential Vfb were evaluated.  Careful inspection of  calculated values of these parameters revealed that the cell  performance has been greatly enhanced with increasing electrode  composition.  Typically, the quantum conversion efficiency and fill  factor are found to be enhanced from 0.056% to 0.31% and 31% to  52% respectively, as the photoelectrode composition varied from zero  to 0.01.  Incremental changes in the performance parameters, and  consequently the enhancement in the cell performance are explained on  the basis of electrode materials composition.

 

Thin film electrodes of HgxCd1-xSe (0 \le x \le 0.2)  were prepared in an aqueous alkaline medium (pH \cong 11) on highly  conducting stainless steel substrates by chemical bath technique.  Use  of these films was made as an active photoelectrode in an  electrochemical photovoltaic cell, comprising: electrode; sodium  polysulphide electrolyte; and impregnated graphite as a counter  electrode.  The investigations on these cells were made by studying  I-V and C-V characteristics in dark, power output, built-in-potential,  spectral and photo responses.  Cell performance parameters were  evaluated: open-circuit photopotential Vph; and short-circuit  photocurrent Iph; series and shunt resistances Rs and Rsh;  quantum conversion efficiency h ; fill factor ff; junction ideality  factor nd; light quality factor nL; built-in-potential F B; and  the flat-band potential Vfb were evaluated.  Careful inspection of  calculated values of these parameters revealed that the cell  performance has been greatly enhanced with increasing electrode  composition.  Typically, the quantum conversion efficiency and fill  factor are found to be enhanced from 0.056% to 0.31% and 31% to  52% respectively, as the photoelectrode composition varied from zero  to 0.01.  Incremental changes in the performance parameters, and  consequently the enhancement in the cell performance are explained on  the basis of electrode materials composition.

Makale detayları

Photoelectrochemical Investigations on HgxCd1-xSe Thin Film Electrode/Electrolyte System

Yazarlar:

Vithal Bhivaba Pujari And Lalasaheb Pata DESHMUKH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2008 Vol.32 Issue 2, pp.105-114

Belge Tipi:

Makale

Yayın Tarihi:

1/2008

Belge Dili:

Türkçe

Document ID (Org No.):

2000761027

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

MCS

P-V cells

efficiency and fill factor

Sayı

Makale detayları

Photoelectrochemical Investigations on HgxCd1-xSe Thin Film Electrode/Electrolyte System

Yazarlar: Vithal Bhivaba Pujari And Lalasaheb Pata DESHMUKH

Yayıncı: TUBITAK

Dergi: Turkish Journal of Physics 2008 Vol.32 Issue 2, pp.105-114

Belge Tipi: Makale

Yayın Tarihi: 1/2008

Belge Dili: Türkçe

Document ID (Org No.): 2000761027

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

MCS

P-V cells

efficiency and fill factor

Sayı

Yazarlar:

Vithal Bhivaba Pujari And Lalasaheb Pata DESHMUKH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2008 Vol.32 Issue 2, pp.105-114

Belge Tipi:

Makale

Yayın Tarihi:

1/2008

Belge Dili:

Türkçe

Document ID (Org No.):

2000761027

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101