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2005-2007 Research Topics (W.Lenggoro)

Collaborations with the members of Hiroshima University (Prof. Kikuo Okuyama) A THERMAL ANALYSIS METHOD FOR NANOPARTICLES Analytica Chimica Acta, 2007# For a small particle, probably it is more accurate, if we measure VOLUME of the particles, rather than WEIGHT, like a typical method: TG-DTA…液相中ナノ粒子のための熱分析法…..耐熱性を調べるには、粒子の重さより粒子の体積を計測。 NOVEL HEATING TECHNIQUES FOR PARTICLES & NANOMATERIALSJ. Am. Ceram. Soc, 2007#…

In the News (2003-2006)注目された研究

*Based on the works at Hiroshima University 2006 TOP25 Hottest Articles > Journal of Colloid and Interface Science, April-June 2005. Ranked #22. Dispersion and aggregation of nanoparticles derived from colloidal droplets under low-pressure conditions, Journal of Colloid and Interface Science, Volume 288, Issue 2, 1, August 2005, Pages 423-431. Wang, W.N.; Lenggoro, I.W.; Okuyama, K….

Materials prepared, with Publications, 1998-2006

ZnS ; submicron, nano-particles; semiconductor, luminescent.ZnS:Mn2+ ; Green phosphorCdS ; submicron, nano-particles; semiconductorCuS Gd2O3:Eu3+ ; Red Phosphor,612 nm. As-prepared 800-C have sharp peaks of cubic phase, and the crystallinity increased with increasing reactor temperature up to 1400-C.Absorbed excitation: 220 nm to 300 nm, and the maximum was near 255 nm.The optimum brightness was obtained at a Eu…

Featured on NIKKEI SCIENCE Magazine (the back cover, Japanese Edition of Scientific American) 2005 日経サイエンス誌（裏表紙）

Wuled Lenggoroは日経サイエンス誌7 月号の裏表紙に | Featured on the back cover of July 2005 issue of Nikkei Science (Japanese version of Scientific American). 日本で活躍していた100人の研究者に選ばれました。Selected as one of 100 researchers active in Japan. ひらめきの瞬間／21世紀の担い手たち Moment of inspiration / 21 century players

2000-2005 Research Topics (W. Lenggoro) 材料の微粒化、粒子の構造化、ナノ粒子の計測技術

Performed at Hiroshima University (with Prof. Kikuo Okuyama) Development of synthesis method for smaller (but better quality) particles*Spray pyrolysis: Experimental vs. Simulation | Spray pyrolysis for luminescent micro/nanoparticles*Preparation of nanoparticles via spray route*Nanoparticle separation in droplet micro-reactors…[Image]*Aerosol route for direct-formation of doped phosphor nanoparticles…[Image] Formation of nanostructured-powder*Nanostructured powders derived from colloids.…[Image] Aerosol method for separating solid and…