Self-powered cathodic photoelectrochemical aptasensor based on in situ–synthesized CuO-Cu2O nanowire array for detecting prostate-specific antigen

Characterization of Cu2O/CuO heterostructure photocathode by tailoring CuO thickness for photoelectrochemical water splitting

“…These two peaks represent characteristics of Cu 2 O and CuO: the peaks located at 932.9 eV and 952.7 eV are related to Cu 2 O (blue lines in tted curves), while the peaks located at 934.2 eV and 954.4 eV are attributed to CuO (pink lines in tted curves). 28,29 In addition, the satellite peaks of Cu 2p 3/2 and Cu 2p 1/2 supports the presence of CuO in the lm. 29,30 On the other hand, the dominant peak at 529.4 eV corresponds to the metal-oxygen bonds, while the peak at 531 eV is attributed to the surface hydroxide in the XPS spectrum of O 1s (Fig.…”

“… 28,29 In addition, the satellite peaks of Cu 2p 3/2 and Cu 2p 1/2 supports the presence of CuO in the film. 29,30 On the other hand, the dominant peak at 529.4 eV corresponds to the metal–oxygen bonds, while the peak at 531 eV is attributed to the surface hydroxide in the XPS spectrum of O 1s ( Fig. 4b ).…”

Green Synthesis of Laser-Induced Graphene with Copper Oxide Nanoparticles for Deicing Based on Photo-Electrothermal Effect

“…Table S3 shows the EDS spectra table of Cu/LIG. The strong Cu2+ satellite peaks located at 942.7 eV and 962.8 eV show that the Cu oxide nanoparticles appear to be CuO [ 36 ]. Figure S3 shows the TGA curves of Cu/LIG with enhanced thermal stability performance.…”

Novel Anti-Interference Strategy for a Self-Powered Sensor: Mediator-Free and Biospecific Photocathode Interface

“…The reduction resistance of the p-type semiconductor was stronger than the oxidation resistance, showing the greater application prospects in the field of biosensors. Compared with the electron donor in the electrolyte solution, p-type semiconductors were more likely to react with the electron acceptor . Therefore, the photocathode had good anti-interference ability and was not affected by the reducing substances in the electrolyte. , It must be acknowledged that the photocathode cannot produce higher photocurrent response than the photoanode, resulting in a lower sensitivity than the photoanode self-powered sensor.…”