Enhancing photoelectrochemical performance of ZnIn2S4 by phosphorus doping for sensitive detection of miRNA-155†
Abstract
We report the synthesis of phosphorus-doped ZnIn2S4 (ZnIn2S4−xPx) materials through a solid/gas-phase reaction. ZnIn2S4−xPx shows enhanced photoelectrochemical (PEC) performance due to the improved photo-carrier separation efficiency achieved by substituting some of the sulfur with phosphorus. A PEC biosensor was further developed based on ZnIn2S4−xPx, which exhibits excellent analytical performance for miRNA-155.