標題: Nanoparticle preparation of quinacridone and beta-carotene using near-infrared laser ablation of their crystals
作者: Yuyama, K.
Sugiyama, T.
Asahi, T.
Ryo, S.
Oh, I.
Masuhara, H.
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 1-Dec-2010
摘要: Quinacridone nanoparticles with a mean size of about 200 nm are successfully prepared using nanosecond near-infrared (NIR) laser ablation of its microcrystalline powders in heavy water. The absorption spectra of the formed colloidal solutions depend on the excitation wavelengths, which is eventually ascribed to number and energy of absorbed photons. beta-carotene has low photostability and is easily decomposed upon UV/VIS laser ablation of its solid, while its nanoparticles are prepared utilizing this NIR laser ablation technique. The advantage of nanoparticle preparation by NIR laser ablation is discussed.
URI: http://dx.doi.org/10.1007/s00339-010-5922-7
http://hdl.handle.net/11536/150201
ISSN: 0947-8396
DOI: 10.1007/s00339-010-5922-7
期刊: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume: 101
起始頁: 591
結束頁: 596
Appears in Collections:Articles