http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Fabrication of Fe:CdSe solar rechargeable (semiconductor–septum) storage cells
Pawar, S.M.,Moholkar, A.V.,Rajpure, K.Y.,Kim, J.H.,Lokhande, C.D.,Bhosale, C.H. Elsevier 2009 Current Applied Physics Vol.9 No.5
<P><B>Abstract</B></P><P>The Fe:CdSe thin films have been electrodeposited potentiostatically onto the stainless steel substrates, from non-aqueous bath containing (CH<SUB>3</SUB>COO)<SUB>2</SUB>·Cd·2H<SUB>2</SUB>O, SeO<SUB>2</SUB> and FeCl<SUB>3</SUB>. The solar rechargeable (semiconductor–septum) storage cell is fabricated with the configuration C|1M polysulphide|<I>n</I>-Fe:CdSe|stainless steel||1M FeCl<SUB>3</SUB> or 1M K<SUB>4</SUB>Fe(CN)<SUB>6</SUB>|C. The charging and discharging modes are studied and discussed. The comparison of FeCl<SUB>3</SUB> and K<SUB>4</SUB>Fe(CN)<SUB>6</SUB> based solar rechargeable storage cells, showed that FeCl<SUB>3</SUB> based storage cell is superior than that of K<SUB>4</SUB>Fe(CN)<SUB>6</SUB> based electrolyte because relatively charging time is minimum and discharging time is maximum. Thus it is concluded that the storage cell works not only as a generator but also as the storage of electricity.</P>
Hunge, Y.M.,Yadav, A.A.,Mahadik, M.A.,Mathe, V.L.,Bhosale, C.H. Elsevier 2018 Journal of the Taiwan Institute of Chemical Engine Vol.85 No.-
<P><B>Abstract</B></P> <P>In present article, WO<SUB>3</SUB> thin films have been successfully synthesized by chemical spray pyrolysis approach. The effect of spraying quantity of solution onto the photoelectrochemical (PEC), structural, morphological, and optical properties has been studied. Film prepared at 40 ml solution quantity shows the excellent photoelectrochemical performance (<I>I</I> <SUB>sc</SUB> <SUB> </SUB>= 0.69 mA/cm<SUP>2</SUP> and <I>V</I> <SUB>oc</SUB> = 0.64 V) in 0.05 M concentrated H<SUB>2</SUB>SO<SUB>4</SUB> electrolyte. X-ray diffraction studies reveal that the synthesized WO<SUB>3</SUB> thin films are polycrystalline with monoclinic crystal structure. The chief vibrational modes of the WO<SUB>3</SUB> sample, located at 712.64 and 804.28 cm<SUP>−1</SUP> corresponding to the stretching and the bending of OWO bond respectively and are consistent with a monoclinic structure. The estimated band gap energy of WO<SUB>3</SUB> thin films varies from 2.37 to 2.45 eV with respect to quantities of spraying solution and it exhibits absorption in visible region. Film shows a maximum specific surface area of 31.63 m<SUP>2</SUP>/g. Photoelectrocatalytic degradation of brilliant blue dye in aqueous solutions is studied. The end result shows that the degradation percentage of brilliant blue using WO<SUB>3</SUB> photoelectrode has reached 92% under visible light illumination after 240 min. The enhancement in photoelectrocatalytic activity of optimized 40 ml WO<SUB>3</SUB> sample is mainly due to the suppressed the recombination rate of photogenerated electron–hole pairs. This study provides an effective WO<SUB>3</SUB> photoelectrode for removing of organic pollutants present in the water.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Monoclinic WO<SUB>3</SUB> homogeneous thin films prepared by the simple, cost-effective, eco-friendly spray pyrolysis approach. </LI> <LI> Photoelectrode with 710 nm thickness display superior photocatalytic degradation of brilliant blue dye. </LI> <LI> Degradation rate constant was 0.2238 cm<SUP>3</SUP>/s for BB under visible-light illumination. </LI> <LI> Decreased COD values from 76 to 16 mg/l confirm the mineralization of the BB dye molecule. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Fabrication of Fe:CdSe solar rechargeable (semiconductor–septum) storage cells
S.M. Pawar,A.V. Moholkar,김진혁,K.Y. Rajpure,C.D. Lokhande,C.H. Bhosale 한국물리학회 2009 Current Applied Physics Vol.9 No.5
The Fe:CdSe thin films have been electrodeposited potentiostatically onto the stainless steel substrates, from non-aqueous bath containing (CH3COO)2 Cd 2H2O, SeO2 and FeCl3. The solar rechargeable (semiconductor-septum) storage cell is fabricated with the configuration C|1 M polysulphide|n-Fe:CdSe|stainless steel||1 M FeCl3 or 1 M K4Fe(CN)6|C. The charging and discharging modes are studied and discussed. The comparison of FeCl3 and K4Fe(CN)6 based solar rechargeable storage cells, showed that FeCl3 based storage cell is superior than that of K4Fe(CN)6 based electrolyte because relatively charging time is minimum and discharging time is maximum. Thus it is concluded that the storage cell works not only as a generator but also as the storage of electricity.
Gaikwad, M.A.,Suryawanshi, M.P.,Nikam, S.S.,Bhosale, C.H.,Kim, J.H.,Moholkar, A.V. Elsevier Sequoia 2016 Journal of photochemistry and photobiology Chemist Vol.329 No.-
<P>Zinc oxide (ZnO) thin films have been deposited with ultrasonic rinsing assisted modified successive ionic layer adsorption and reaction (M-SILAR) method. The effect of Zn concentration on the growth of ZnO films and power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) have been studied. The surface morphology changes from nanorods to the nanoflowers like structure as a result of coalescence of the nanorods. Also, the significant effect of the dye adsorption time of photoelectrodes on the overall PCE of ZnO based DSSCs has been investigated systematically. It is found that the chemical stability is the foremost issue for ZnO photoelectrode. The prolonged dye adsorption time is responsible for the deterioration of the ZnO nanostructure due to the formation of Zn2+/N3 dye aggregates. The DSSC prepared using photoelectrode of 0.1 M Zn concentration and dye loading time of 18 h exhibited a highest PCE of 0.70%, since it possesses well-defined 1D nanostructure which facilitates very low reverse saturation current density and longer electron lifetime. (C) 2016 Elsevier B.V. All rights reserved.</P>
Pawar, N.B.,Mali, S.S.,Kharade, S.D.,Gang, M.G.,Patil, P.S.,Kim, J.H.,Hong, C.K.,Bhosale, P.N. Elsevier 2014 CURRENT APPLIED PHYSICS Vol.14 No.3
In the present paper we report structural, optical, morphological and electrical properties of thin films of MoBi<SUB>2</SUB>S<SUB>5</SUB> prepared by facile self organized arrested precipitation technique (APT) from aqueous alkaline bath. X-ray diffraction study on thin films suggests orthorhombic and rhombohedral mixed phase structure. The samples are further annealed under vacuum at 373 and 473 K. The EDS pattern shows minor loss of sulphur upto 473 K. The optical absorption in visible region shows direct allowed transition with band gap variation over 1.2-1.1 eV. Post-heat treated samples exhibit n-type electrical conductivity. SEM images show uniform distribution of spherical grains with diameter ~200 nm for as-synthesized MoBi<SUB>2</SUB>S<SUB>5</SUB> thin film. The grain size increases with annealing temperature and morphology becomes more compact due to crystallization of thin film. The surface roughness deduced from AFM, was in the range of 1.29-1.92 nm. The MoBi<SUB>2</SUB>S<SUB>5</SUB> thin films are employed for the fabrication of photoelectrochemical solar cells as all the samples exhibit strong absorption in visible to near IR region. Due to vacuum annealing it gives a significant enhancement of power conversion efficiency (η) upto 0.14% as compared to as-synthesized MoBi<SUB>2</SUB>S<SUB>5</SUB> thin film.
Hunge, Y.M.,Yadav, A.A.,Mahadik, M.A.,Bulakhe, R.N.,Shim, J.J.,Mathe, V.L.,Bhosale, C.H. Elsevier 2018 Optical materials Vol.76 No.-
<P><B>Abstract</B></P> <P>The need to utilize TiO<SUB>2</SUB> based metal oxide hetero nanostructures for the degradation of environmental pollutants like Rhodamine B and reactive red 152 from the wastewater using stratified WO<SUB>3</SUB>/TiO<SUB>2</SUB> catalyst under sunlight illumination. WO<SUB>3</SUB>, TiO<SUB>2</SUB> and stratified WO<SUB>3</SUB>/TiO<SUB>2</SUB> catalysts were prepared by a spray pyrolysis method. It was found that the stratified WO<SUB>3</SUB>/TiO<SUB>2</SUB> heterostructure has high crystallinity, no mixed phase formation occurs, strong optical absorption in the visible region of the solar spectrum, and large surface area. The photocatalytic activity was tested for degradation of Rhodamine B (Rh B) and reactive red 152 in an aqueous medium. TiO<SUB>2</SUB> layer in stratified WO<SUB>3</SUB>/TiO<SUB>2</SUB> catalyst helps to extend its absorption spectrum in the solar light region. Rh B and Reactive red 152is eliminated up to 98 and 94% within the 30 and 40 min respectively at optimum experimental condition by stratified WO<SUB>3</SUB>/TiO<SUB>2</SUB>. Moreover, stratified WO<SUB>3</SUB>/TiO<SUB>2</SUB> photoelectrode has good stability and reusability than individual TiO<SUB>2</SUB> and WO<SUB>3</SUB> thin film in the degradation of Rh B and reactive red 152. The photoelectrocatalytic experimental results indicate that stratified WO<SUB>3</SUB>/TiO<SUB>2</SUB> photoelectrode is a promising material for dye removal.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Enhanced photoelectrocatalytic activity of sprayed deposited stratified WO<SUB>3</SUB>/TiO<SUB>2</SUB> thin films. </LI> <LI> Photoelectrocatalytic degradation of rhodamine B and reactive red 152 dye. </LI> <LI> Reaction kinetics and degradation of pollutants by COD measurement. </LI> </UL> </P>