Application In Synthesis of Tri-n-octylphosphine Oxide. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Tri-n-octylphosphine Oxide, is researched, Molecular C24H51OP, CAS is 78-50-2, about Impact on Structural, Morphological, and compositional properties of CZTS thin films annealed in different environments. Author is Jain, Shefali; Kumar Swami, Sanjay; Dutta, Viresh; Narain Sharma, Shailesh.
The present study focuses on the impacts of annealing temperature in different ambiances on the morphol. behavior and thin-film quality of CZTS nanoparticles. CZTS nanoparticles were synthesized via the hot-injection colloidal route method. CZTS nanoparticles were annealed in air, vacuum atm., and S environment (N2 + H2S 5%), resp. at 450° for 30 min. The structural, morphol., compositional, and optical properties of all CZTS thin films were analyzed. The volume fraction is increased in the vacuum annealed thin film keeping crystallite size as same as in the as-deposited film. This results in a reduction of cracks and voids and thus the surface defects of the vacuum annealed thin film as confirmed by scanning electron microscope (SEM). AFM also confirms the improved quality of CZTS thin film annealed in a vacuum. PL curves also confirm the min. defects in the case of vacuum-annealed thin films. Thus, the study reveals that the best quality CZTS thin films i.e. films with the least pinholes, cracks, and voids without any significant change from the initial conditions can be obtained after annealing in the vacuum environment.
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Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method