Design of ultrathin nanosheet subunits ZnIn2S4 hollow nanocages with enhanced photoelectric conversion for ultrasensitive photoelectrochemical sensing

Smartphone-Based Photoelectrochemical Immunoassay with Co 9 S 8 @ZnIn 2 S 4 for Point-of-Care Diagnosis of Breast Cancer Biomarker

“…Actually, the preparation of a photocatalyst with a stable and highly sensitive analyte response is the core of the PEC immunoassays. Among various metal sulfide semiconductors, ZnIn 2 S 4 has been shown to attract more and more attention in PEC sensors due to its suitable band gap, unique electronic, optical properties, and tunable morphological structure [11][12][13]. However, the defects of rapid recombination of photogenerated carriers, insufficient active sites, and severe photocorrosion of pure ZnIn 2 S 4 limit the application in PEC immunoassays.…”

2D MOF-Based Photoelectrochemical Aptasensor for SARS-CoV-2 Spike Glycoprotein Detection

“…For example, appropriate design, doping, and combining semiconductors with metals or other semiconductors to form heterojunctions have been applied to boost the photon-to-electricity conversion efficiency. 37 , 39 − 44 Among them, the Schottky junctions formed by metal and semiconductor have been paid much attention to for improving the photoelectrical conversion performance due to the enhancement effect of plasmon. 37 , 45 − 50 However, the developed PEC sensors still face some serious problems, such as relatively low photocurrent conversion efficiency and intolerance to photobleaching, which greatly limits their applications.…”

“…The development of photosensitive materials with a wide spectrum response is the key to improve the sensitivity of PEC sensors. − Thus, significant effort has been made to improve the photoelectric performance of photoelectric materials. For example, appropriate design, doping, and combining semiconductors with metals or other semiconductors to form heterojunctions have been applied to boost the photon-to-electricity conversion efficiency. ,− Among them, the Schottky junctions formed by metal and semiconductor have been paid much attention to for improving the photoelectrical conversion performance due to the enhancement effect of plasmon. ,− However, the developed PEC sensors still face some serious problems, such as relatively low photocurrent conversion efficiency and intolerance to photobleaching, which greatly limits their applications. , Therefore, to meet the specific aims, it is necessary to develop proper photoactive materials with high photocurrent conversion efficiency and stable photocurrent.…”

[Ru(bpy)3]2+@Ce-UiO-66/Mn:Bi2S3 Heterojunction and Its Exceptional Photoelectrochemical Aptasensing Properties for Ofloxacin Detection

“…15 A quantitative analysis is achieved by utilizing the photoelectric conversion capabilities of photosensitive materials in PEC sensors. 16,17 Therefore, designing suitable photosensitive materials is the key to PEC sensors.…”

“…Because the excitation source is completely separated from the detection signal, the instrument with the PEC sensor is easier to be miniaturized with a low background photocurrent and a good sensitivity. − PEC sensors have been developed dramatically and are used in environmental monitoring, biomedicine, and food safety . A quantitative analysis is achieved by utilizing the photoelectric conversion capabilities of photosensitive materials in PEC sensors. , Therefore, designing suitable photosensitive materials is the key to PEC sensors.…”