Type-I heterojunction destruction by In situ formation of Bi2S3 for split-type photoelectrochemical aptasensor

Split-type photoelectrochemical immunoassay for sensitive quantification of carcinoembryonic antigen based on target-induced in situ formation of Z-type heterojunction

“…The photocurrent decreased due to the in situ generation of Bi 2 S 3 , which hindered the reaction between dissolved oxygen and photogenerated electrons. 22 Despite the current progress, there is a need to explore in situ generation-based PEC sensors with impressive performance. Another factor that significantly influences the sensing performance is the selection of photoactive materials.…”