Isaac Bernard Rufus

Balasubramanian Viswanathan

Joseph C. Kuriacose

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Surface characterization of CdS0.62Se0.38 by X-ray photoelectron spectroscopy

Journal of Materials Science Letters

In this paper solution mixing and casting of Cd(NO3) 2·4H2O and poly(ethylene oxide) (PEO) at different molar ratios (1:100-1:600) followed by hydrogen sulfide treatment were employed to fabricate solid films of cadmium sulfide (CdS)/polyethylene oxide (PEO) nanocomposites. The nanocomposites were found to exhibit uniform distribution of CdS nanoparticles in the polymer matrix without any additional capping agent. Systematic investigations on the role of PEO on the optical properties of CdS are presented. The optical properties of the composites examined by UV-vis absorption spectroscopy show that the band gap of CdS nanoparticles increases from 2.45 eV to 2.54 eV with decreasing concentration of CdS in PEO films. X-ray diffraction pattern shows the broadening in shape of the PEO peaks which is induced by the CdS particles in PEO matrix. The CdS particle sizes ranging from 10 to 20 nm are clearly seen in a transmission electron microscope (TEM). The X-ray photoelectron spectroscopic studies (XPS) also confirm the presence of CdS in PEO. Fourier transform infrared spectroscopy studies using attenuated total reflectance (FTIR-ATR) indicate the influence of Cd2+ ion on C-O-C stretching in PEO and confirm the presence of CdS nanoparticles within PEO. Photoluminescence spectroscopy (PL) shows the broad emission due to the presence of surface trapped carrier states. © 2013 Elsevier Ltd.

Materials Science in Semiconductor Processing

Structural and optical properties of CdS/PEO nanocomposite solid films

The in situ deposition of Pt and Ir on CdS during the photocatalytic decomposition of aqueous sulfide results in the formation of an effective bifunctional photocatalyst (MS/CdS/M, where MS is Pt or Ir sulfide and M is Pt or Ir) which is more active than CdS and metallized CdS. In situ metallization provides a convenient method for the preparation of metal- and metal-sulfide-deposited CdS. The order of reactivity for the in situ metallization of CdS in the case of the photocatalytic decomposition of aqueous sulfide is Rh > Pt > Ru = Ir > Co ≃ Ni ≃ Fe. Based on the observed results a mechanism for the photocatalytic decomposition of aqueous sulfide is proposed. © 1995.

Journal of Photochemistry and Photobiology, A: Chemistry

Cadmium sulfide with iridium sulfide and platinum sulfide deposits as a photocatalyst for the decomposition of aqueous sulfide

Interface and surface analysis of Ru/CdS

International Journal of Heat and Mass Transfer

Performance of air-to-water copper finned-tube heat exchangers at moderately low air-side Reynolds numbers, including effects of baffles

Journal of Physics C: Solid State Physics

Photocapacitance and luminescence studies of charge-transfer and internal transitions of Cu in CdSxSe1-x

Electrochimica Acta

Photoelectrochemical cells with mixed polycrystalline n-type CdSPbS and CdSCdSe electrodes

Pacific Historical Review

Review

Journal	Journal of Materials Science Letters
Publisher	Kluwer Academic Publishers
ISSN	02618028
Open Access	No