TY - JOUR
T1 - Novel luminescent Ir(III) dyes for developing highly sensitive oxygen sensing films
AU - Toro, M. Marin Suarezdel
AU - Fernandez-Sanchez, J. F.
AU - Baranoff, E.
AU - Nazeeruddin, Md K.
AU - Graetzel, M.
AU - Fernandez-Gutierrez, A.
AU - Baranoff, Etienne
PY - 2010/7/15
Y1 - 2010/7/15
N2 - New sensing films have been developed for the detection of molecular oxygen. These films are based on luminescent Ir(III) dyes incorporated either into polystyrene (with and without plasticizer) or metal oxide, nanostructured material. The preparation and characterization of each film have been investigated in detail. Due to their high sensitivity for low oxygen concentration, the parameters pO2(S=1/2) and ΔI
1% have been also evaluated in order to establish the most sensitive membrane for controlling concentrations between 0 and 10% and low oxygen concentrations (lower than 1%), respectively. The results show that the use of nanostructured material increased the sensitivity of the film; the most sensitive membrane for controlling O
2 between 0 and 10% is based on N1001 immobilized in AP200/19 (k
sv = 2848 ± 101 bar
-1 and pO2(S=1/2)=0.0006), and the complex N969 incorporated into AP200/19 seems to be the most suitable for applications in oxygen trace sensing (ΔI
1% = 93.13 ± 0.13%).
AB - New sensing films have been developed for the detection of molecular oxygen. These films are based on luminescent Ir(III) dyes incorporated either into polystyrene (with and without plasticizer) or metal oxide, nanostructured material. The preparation and characterization of each film have been investigated in detail. Due to their high sensitivity for low oxygen concentration, the parameters pO2(S=1/2) and ΔI
1% have been also evaluated in order to establish the most sensitive membrane for controlling concentrations between 0 and 10% and low oxygen concentrations (lower than 1%), respectively. The results show that the use of nanostructured material increased the sensitivity of the film; the most sensitive membrane for controlling O
2 between 0 and 10% is based on N1001 immobilized in AP200/19 (k
sv = 2848 ± 101 bar
-1 and pO2(S=1/2)=0.0006), and the complex N969 incorporated into AP200/19 seems to be the most suitable for applications in oxygen trace sensing (ΔI
1% = 93.13 ± 0.13%).
KW - Iridium complex
KW - Luminescence
KW - Nanostructured material
KW - Oxygen
KW - Sensor
UR - http://www.scopus.com/inward/record.url?scp=77955321200&partnerID=8YFLogxK
U2 - 10.1016/j.talanta.2010.05.018
DO - 10.1016/j.talanta.2010.05.018
M3 - Article
C2 - 20602945
AN - SCOPUS:77955321200
SN - 0039-9140
VL - 82
SP - 620
EP - 626
JO - Talanta
JF - Talanta
IS - 2
ER -