文档介绍:MATERIALS
SCIENCE &
ENGINEERING
12
ELSEVIER Materials Science and Engineering C 6 (1998) 145-154
anic-anic sensors
Eric Bescher *, John D. Mackenzie
Department of Mawrials Science and Engineering, Unit,ersity of Califorlffa Los Angeles, Los Angeles, CA 90004, USA
Received 25 March 1998; accepted 17 August 1998
Abstract
Using the sol-gel process, it is possible anic and ponents within the same roan'ix. Many new hybrid
materials with unique mechanical, chemical or physical properties have been synthesized using this low-temperature, 'soft chemistry'
route. Optics and sensing technoIogy probably stand to benefit the most from the current research effort on these new materials. Since
bine the features of gel-derived oxides (mechanical strength, transparency in the visible, high porosity and surface area) with the
characteristics anic molecules (wide range of reactivity and specificity, optical properties), organic-anic hybrids are materials
that often cannot be fabricated by other means. This report describes some recent work in the authors' laboratory and briefly summarizes
other recent advances in the field. According to a recent trend, it distinguishes between two different types of hybrids. In type I hybrids,
the interaction anic and anic constituents is weak and due to second order (Van der Waals or hydrogen) bonding. In
Type II hybr