Bindu, K; Dr.Vijayakumar, K P(Cochin University of Science & Technology, May , 2002)
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Abstract:
In the present work, we describe our efforts to develop device quality
CuInSe2, films through low cost, simple and eco-friendly hybrid techniques. The
most important point to be highlighted here is that the method fully avoids the use
of poisonous gases such as H2Se/Se vapour. Instead, selenisation is achieved
through solid state reaction between amorphous selenium and polycrystalline
metal layers resulting in both binary and ternary selenides. Thin films of
amorphous selenium (a-Se) used for this is deposited using Chemical Bath
Deposition (CBD). CulnSe2 films are prepared through the selenisation process.
Another PV material, indium selenide (In2Se3) thin films are also prepared using
this process.
Description:
Department of Physics, Cochin University of
Science and Technology
We have performed thermal diffusion measurements
of nanofluid containing gold and rhodamine 6G dye
in various ratios. At certain concentrations, gold is nearly
four times more efficient than water in dissipating small
temperature fluctuations in a medium, and therefore it will
find applications as heat transfer fluids. We have employed
dual-beam mode-matched thermal lens technique for the
present investigation. It is a sensitive technique in measuring
photothermal parameters because of the use of a lowpower,
stabilized laser source as the probe. We also present
the results of fluorescence measurements of the dye in the
nanogold environment.