nanocrystalline – TechConnect Briefs

Efficiency Enhancement of Dye-Sensitized Nanocrystalline Solar Cells Through Fabrication

Ilumoka A.A., UNIVERSITY OF HARTFORD, US

This paper reports results obtained from the investigation of electrical performance of blueberry-based DSSCs and makes recommendations regarding their fabrication, specifically optimal sintering temperature and optimal sintering time. Electrical characteristics (open circuit voltage, short circuit [...]

Retarded Growth of Nano-sized Carbide Particles in Liquid Metals at 1500°C

Kim J., Kim J., Seo M., Kim J., Kang S., Seoul National Univ., KR

The nanocrystalline solid-solution carbide powders were prepared by carbo-thermal reduction after high-energy planetary milling of proper oxide mixture. Then, particle growth behaviours of nanocrystalline transitional metal carbides such as (W,V)C and (Ti,W,M1,M2)(CN) were investigated and [...]

Influence of Stress and Temperature on the Microstructure Stability of Nanocrystalline Materials

Rajgarhia R.K., Koh S-W., Spearot D., Saxena A., Selvam P., Tummala R., University of Arkansas, Fayetteville, US

Nanocrystalline materials have improved mechanical and electrical properties in comparison to their microcrystalline counterparts due to their reduced crystallite or grain size. Loss of these unique properties due to grain growth under the affect of [...]

Laser pyrolysis – a platform technology to produce functional nanoscale materials for a range of applications

Chiruvolu S., Li W., Ng M., Du K., Ting N.K., McGovern W.E., Kambe N., Mosso R., Drain K., NanoGram Corporation, US

Nanoscale materials continue to generate ever increasing levels of interest for applications in a broad-range of fields. Concurrently variety of synthesis methods are being explored and developed for the synthesis and production of nanoparticles including [...]

Influence of Number of Washing on the Characteristic of Nanocrystalline Copper Oxide Powders

Ramli I., Muhammad E.N., Abdullah A.H., Taufiq-Yap Y.H., Abdul Hamid S.B., Abdullah A.H., University Putra Malaysia, MY

in this, effect of number of washing on the characteristic of copper oxide catalyst has been carried out. The samples were prepared by precipitation of copper (II) nitrate trihydrate with an aqueous solution of sodium [...]

Texture and Grain Growth in Nanocrystalline Permalloy

Park J., Park Y.B., Park J., Park Y.B., Ha C.S., Yim T.H., Sunchon National University, KR

The texture evolution accompanied by grain growth was investigated in a nanocrystalline Fe-78wt%Ni alloy, namely permalloy fabricated by using an electrodeposition method. The as-deposited specimen revealed a strong //ND and a weak //ND fibre-type textures. [...]