Photoluminescence properties of cuprous phosphide prepared through phosphating copper with a native oxide layer.

Although cuprous phosphide (CuP) has been widely studied and applied in other fields, its photoluminescence (PL) properties are rarely investigated. Herein, we report that CuP can emit near-infrared light at 750 nm. We show that the annealing and the presence of cuprous oxide can enhance the PL emission.

Investigation of photoelectric behaviors of silver sulfide particles in different surroundings.

Silver sulfide (AgS) is a traditional semiconductor material, however, the photoelectric properties of AgS particles under different environments are still lacking. In this paper, we reported the preparation of AgS particles and their photoelectric properties under different environments. Results showed that the photoelectric performance of AgS particles was closely related to the environment.