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Ultra-High-Resolution Detection Of Pb2+ Ions Using A Black Phosphorus Functionalized Microfiber Coil Resonator, Yu Yin, Shunbin Wang, Shijie Jia, Jing Ren, Gerald Farrell, Elfed Lewis, Pengfei Wang
Ultra-High-Resolution Detection Of Pb2+ Ions Using A Black Phosphorus Functionalized Microfiber Coil Resonator, Yu Yin, Shunbin Wang, Shijie Jia, Jing Ren, Gerald Farrell, Elfed Lewis, Pengfei Wang
Articles
A black phosphorus (BP) functionalized optical fiber sensor based on a microfiber coil resonator (MCR) for Pb2+ ion detection in an aquatic environment is presented and experimentally demonstrated. The MCR-BP sensor is manufactured by winding a tapered microfiber on a hollow rod composed of a low-refractive-index polycarbonate (PC) resin with the BP deposited on the internal wall of the rod. Based on the propagation properties of the MCR, the chemical interaction between the Pb2+ ions and the BP alters the refractive index of the ambient environment and thus results in a detectable shift in the transmission spectrum. The resonance wavelength …