Materials & Manufacturing Directorate, Air Force Research Laboratory, 3005 Hobson Way, Wright-Patterson Air Force Base, OH 45433, USA.
Chemphyschem. 2012 Jun 4;13(8):2068-73. doi: 10.1002/cphc.201200042. Epub 2012 Mar 29.
Using supercritical fluid CO(2) (Sc-CO(2)) as a medium, PbS nanoparticles can be uniformly deposited on surfaces of various substrates. Sc-CO(2) deposition of PbS nanoparticles on carbon-coated copper grids, into small holes in silicon, and formation of uniform PbS nanoparticle films on glass are described. Fluorescence spectra of PbS nanoparticles obtained from the films prepared by the Sc-CO(2) method indicate effective energy transfer between PbS nanoparticles of different sizes.
使用超临界二氧化碳（Sc-CO2）作为介质，可以将 PbS 纳米颗粒均匀地沉积在各种基底的表面上。本文描述了 Sc-CO2 沉积法在碳涂覆的铜网格、硅小孔和玻璃上形成均匀的 PbS 纳米颗粒薄膜的过程。通过 Sc-CO2 法制备的薄膜得到的 PbS 纳米颗粒的荧光光谱表明，不同尺寸的 PbS 纳米颗粒之间存在有效的能量转移。
