Abstract
We study the absorption and transmission spectra, the thermal stabilityand the green-light (514.5 nm) static optical recording properties ofnickel phthalocyanine (NiPc) thin film. It is found that this filmoccupies suitable absorption and transmission properties, excellentthermal stability (decomposition point > 600°C) and outstandingthermal decomposition characteristics (weight loss in one stepdecomposition >60%) for green-light (514.5 nm) optical recording. Highreflectivity contrast (>50%) was obtained at low writing power(5 mW) and short writing pulse-width (100 ns) using an Ar+ laser(514.5 nm) irradiation. Compared with azo in polymer films, thesubphthalocyanine film and Sb-Te-Based phase change films, theNiPc film has better green-light static recording properties. Theseresults indicate that metal phthalocyanine is not only a qualifiedmaterial for near infrared optical recording but also a promisingrecording medium candidate for green-light DVD-R.
Published Version
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