Nanocomposites Containing Neutral Blue Emitting Cyclometalated Iridium(III) Emitters for Oxygen Sensing
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- 作者：Marta Mar铆n-Su谩rez ; Basile F. E. Curchod ; Ivano Tavernelli ; Ursula Rothlisberger ; Rosario Scopelliti ; Il Jung ; Davide Di Censo ; Michael Gr盲tzel ; Jorge Fernando Fern谩ndez-S谩nchez ; Alberto Fern谩ndez-Guti茅rrez ; Md. Khaja Nazeeruddin ; Etienne Baranoff
- 刊名：Chemistry of Materials
- 出版年：2012
- 出版时间：June 26, 2012
- 年：2012
- 卷：24
- 期：12
- 页码：2330-2338
- 全文大小：433K
- 年卷期：v.24,no.12(June 26, 2012)
- ISSN：1520-5002
文摘
The behavior toward oxygen sensing of nanocomposites made of the aluminum oxide-hydroxide nanostructured solid support (AP200/19) and neutral blue emitting cyclometalated iridium(III) complexes was studied. The results are compared with the same dyes immobilized in polystyrene films. Since the photoluminescence of the complexes is totally quenched for oxygen concentrations just over 10%, these systems using the blue region of the visible spectrum are promising for oxygen detection at low concentration. In particular, dyes supported into the AP200/19 provide the best sensitivity to oxygen concentration, with the possibility to detect oxygen below 1% O2 in gas (0.01 bar).