| 초록 |
There is a growing interest toward CNT and 2D materials for their exceptional geometrical, optical, and electronic features because It needs diluted gas sensors with low-cost detectors for measuring greenhouse gases (e.g., CO2) in the atmosphere as unique photonic and optoelectronic applications recently. To identify the monitoring capability of the CNT-based film in ambient air, the cross-sensitivity to other gases, mainly water vapor, has to be explored. We demonstrate here experimentally for the first time response to the white light source on a film based on CNF(cellulose nanofiber)-CNT composite by exploiting the electrical resistance inside a nonwoven mat fabricated by spray coating. The electrical resistance measured on the CNF-CNT film in the I-V curve proves the effectiveness of the fabrication method in preserving CNT’s physical properties. Our results disclose exciting potentialities for building low-cost gas sensor devices based on 2D materials using visible and infrared optical light-absorbing. |
