Gas-Sensitive Photoconductivity of Porphyrin-Functionalized ZnO Nanorods
Citations Over TimeTop 10% of 2012 papers
Abstract
Hybrid materials based on wide band gap semiconductors and dye molecules are intensively studied for photovoltaic applications. However, these materials also possess interesting gas sensitivities, besides these photonic effects. In this Article, we report the study, under visible light illumination, of the porphyrin-functionalized ZnO nanorod photoconductivity changes, modulated by exposure to two volatile organic compounds, ethanol and triethylamine, chosen as model analytes. The sensitivity to triethylamine exceeds that to ethanol by more than two orders of magnitude, showing a selectivity that is not found in other porphyrin-based gas sensors. This feature could open the way to a novel generation sensors, where photoactivation plays a role in determining both sensitivity and selectivity of the resulting device.
Related Papers
- → Stability and Transformations of Heated Gold Nanorods(2011)30 cited
- → HPHT synthesis and magnetic property of -Fe2O3@C core-shell nanorods(2014)2 cited
- → Superfocusing effect in the chain of silver nanorods(2011)2 cited
- → Fabrication of magnesium germanide nanorods from Ge nanorod templates(2012)2 cited
- Solvothermal Synthesis of CdSxSe1-x Nanorods by Polymer Gel-Controlled Growth Strategy(2007)