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The preparation of conducting polymer films from oriented PEO-NaI by exposure to I2 and charge-transfer exchange with tetracyanoquinodimethan (TCNQ) is described. The PEO-NaI had stoichiometries x = [EO]/[NaI] = 3-6. Gravimetric, X-ray and i.r. analysis suggests that crystalline complexes of PEO-Na13 and PEO-NaTCNQ have been prepared having conductivities of lop4 S cm-' and lop's cm-I, respectively. Exchange with TCNQ forms

The hydrogenated amorphous carbon nitride (a-CN x :H) thin films were synthesized on the SS-304 substrates using a dense plasma focus device. The a-CN x :H thin films were synthesized using CH 4 /N 2 admixture gas and 20 focus deposition shots on substrates placed at different distances from the anode top. X-ray photoelectron spectroscopy and Raman analysis confirmed different C-N bonding in the a-CN x :H thin films. A decrease in the N/C ratio as well as the sp 3 /sp 2 ratio with an increase in the substrate distance has been observed. The higher amount of C-N formation for the film synthesized at 10 cm is observed which decreases with increasing distance. The X-ray photoelectron spectroscopy and Raman analysis affirmed the C ≡ N presence in all the thin films synthesized at different distances. The morphology of the synthesized a-CN x :H thin films showed nanoparticles and nanoparticle clusters formation at the surface. The hardness results showed comparatively lower hardness of the a-CN x :H thin films due to the presence of C ≡ N. The C-N formation with lower amount of C ≡ N and a higher N/C ratio as well as a higher sp 3 /sp 2 ratio for the films synthesized at 10 cm show reasonably higher hardness.

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