Photochromic Inorganic/Organic Self-Assembled Superlattice Films

✍ Scribed by Zhao-hui Chen; Ying Ma; Xin-tong Zhang; Bin Liu; Jian-nian Yao

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 76 KB
• Volume: 240
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.2001.7677

✦ Synopsis

Phosphotungstic acid (PW 12 ) and 1,10-diaminodecane (1,10-DAD) molecules have been alternatively assembled on 3aminopropyltriethyoxysilane modified quartz or silicon substrate to form multicomposite mutilayer thin films by the molecular deposition technique. Thus-obtained films were characterized by UVvisible, XRD, X-ray reflection (XRR), and XPS spectra. Results show that the layer-by-layer self-assembly of PW 12 and 1,10-DAD leads to a well-ordered superlattice-layered structure with a dspacing of 3.19 nm, which exhibits extremely exciting photochromic properties. Based on the experimental data, a presumable interlayer structural model has also been suggested.