Direct growth of SnS₂ nanowall photoanode for high responsivity self-powered photodetectors

Abstract

Tin sulfide (SnS2) has attracted growing attention due to its environmental friendliness, tunable band gap and potential applications for high-sensitive photodetectors. However, low responsivity and slow response speed severely hinder...

Enhanced photocatalytic performance of SnS2 under visible light irradiation: strategies and future perspectives

“…79 The SnS 2 structure belongs to the covalent bonding group of P 3̄ m 1 (164) with lattice parameters a = b = 0.3643 nm and c = 1.7683 nm. 79 Like the other members of the TMD family, SnS 2 has a layered structure with several interesting properties such as a high optical absorption coefficient, tunable bandgap, low toxicity, and natural abundance, which makes it very promising for 2D material applications such as photocatalysis, photoanodes, 80 and gas sensors. 20 SnS 2 corresponds to an n-type semiconductor that possesses a narrow energy band gap of 2.0–2.4 eV.…”

Highly Sensitive and Stable Visible-Light Self-Power Photodetectors Based on Solution-Processed Bi4O5I2

“…Photodetectors, as a kind of photoelectrical conversion device, play a key role in the field of civil and national defense, leading to various applications like optical communication, biomedical imaging, and environment monitoring. , Among the investigated photodetectors, the photoelectrochemical (PEC)-type photodetector has emerged as an inspiring supplement of the photodetector family with various merits including promising photodetection performance, being self-powered, and involving a facile fabrication process. − In the PEC-type photodetector, the separation of photogenerated electron–hole pairs can be achieved owing to the energy barrier between the electrode and the electrolyte . The electrons and holes react with the cations and anions from the electrolyte, respectively, completing the current loop.…”

Ultrathin CuBi2O4 on a bipolar Bi2O3 nano-scaffold: a self-powered broadband photoelectrochemical photodetector with improved responsivity and response speed

“…[1][2][3][4][5][6] In particular, selfpowered broadband PEC photodetectors, which can achieve a wide spectral range response covering UV to NIR light without an external power source, have become a research hotspot. [7][8][9][10][11] They are attractive in special application scenarios such as wireless, wearable, and micro-photodetectors. For designing broadband photodetectors, narrow-bandgap semiconductors with wide spectral absorption are expected.…”