TY - JOUR
T1 - Nanostructure development in photodeposited, titania-based thin films
AU - Musgraves, David J.
AU - Potter, Barrett G.
AU - Boyle, Timothy J.
N1 - Funding Information:
We acknowledge the valuable contributions of K. Simmons-Potter and Z. Schneider of the University of Arizona. Research was supported by the Department of Energy, Office of Basic Energy Sciences and the State of Arizona TRIF Photonics Initiative. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lock-heed Martin Company, for the United States Department of Energy under Contract No. DE-AC04-94AL85000.
PY - 2009/11
Y1 - 2009/11
N2 - Ultraviolet irradiation (λ = 248 nm) was used to photocatalyze a solution of the heteroleptic titanium alkoxide (OPy)2Ti(TAP) 2 [where OPy = pyridine carbinoxide and TAP = 2,4,6 tris(dimethylamino)phenoxide], leading to the deposition of a titania-based thin film only in the exposed region. The effect of water addition to the (OPy) 2Ti(TAP)2 pyridine solution on the properties of the final photodeposited film structure was examined by using vibrational spectroscopy and electron microscopy. Under consistent optical exposure conditions, the amount of water added altered the nanoscale porosity of the final material produced. Films deposited from a solution with a 1:1 H2O/Ti content exhibited surface pores ∼100 nm in diameter, whereas a 4:1 ratio yielded 10-nm pores, and material produced from a 8:1 solution appeared fully condensed. In addition, the effect of postdeposition thermal treatments on the nanostructure and chemistry of the photodeposited films was examined.
AB - Ultraviolet irradiation (λ = 248 nm) was used to photocatalyze a solution of the heteroleptic titanium alkoxide (OPy)2Ti(TAP) 2 [where OPy = pyridine carbinoxide and TAP = 2,4,6 tris(dimethylamino)phenoxide], leading to the deposition of a titania-based thin film only in the exposed region. The effect of water addition to the (OPy) 2Ti(TAP)2 pyridine solution on the properties of the final photodeposited film structure was examined by using vibrational spectroscopy and electron microscopy. Under consistent optical exposure conditions, the amount of water added altered the nanoscale porosity of the final material produced. Films deposited from a solution with a 1:1 H2O/Ti content exhibited surface pores ∼100 nm in diameter, whereas a 4:1 ratio yielded 10-nm pores, and material produced from a 8:1 solution appeared fully condensed. In addition, the effect of postdeposition thermal treatments on the nanostructure and chemistry of the photodeposited films was examined.
UR - http://www.scopus.com/inward/record.url?scp=70450140408&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70450140408&partnerID=8YFLogxK
U2 - 10.1557/jmr.2009.0411
DO - 10.1557/jmr.2009.0411
M3 - Article
AN - SCOPUS:70450140408
SN - 0884-2914
VL - 24
SP - 3372
EP - 3379
JO - Journal of Materials Research
JF - Journal of Materials Research
IS - 11
ER -