Microsphere templating as means of enhancing surface activity and gas sensitivity of CaCu(3)Ti(4)O(12) thin films.
Chemical and physical synthesis routes were combined to prepare macroporous CaCu(3)Ti(4)O(12) thin films by pulsed laser deposition onto poly(methyl methacrylate) (PMMA) microsphere templated substrates. These films showed remarkably enhanced gas sensitivity compared with control films deposited on untreated substrates, demonstrating the virtues of combining thin film physical vapor deposition (PVD) techniques in concert with colloidal templates to produce macroporous structures of inorganic films with enhanced surface activity for applications in chemical sensors, catalysts, and fuel cells.
Kim
Il-Doo
ID
Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
Rothschild
Avner
A
Hyodo
Takeo
T
Tuller
Harry L
HL
D002118:Calcium / Q000737:chemistry* / Q000528:radiation effects; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003300:Copper / Q000737:chemistry* / Q000528:radiation effects; D005740:Gases / Q000737:chemistry; D007834:Lasers; D008567:Membranes, Artificial; D043942:Nanotubes / Q000737:chemistry* / Q000528:radiation effects; D010100:Oxygen / Q000737:chemistry* / Q000528:radiation effects; D010316:Particle Size; D019904:Polymethyl Methacrylate / Q000737:chemistry / Q000528:radiation effects; D016062:Porosity; D012680:Sensitivity and Specificity; D013499:Surface Properties; D013997:Time Factors; D014025:Titanium / Q000737:chemistry* / Q000528:radiation effects
D005740:Gases; D008567:Membranes, Artificial; D003300:Copper; D019904:Polymethyl Methacrylate; D014025:Titanium; D010100:Oxygen; D002118:Calcium