Improving photoluminescence properties and reducing recombination of CsPbBr perovskite through lithium doping.

This study investigates the impact of lithium doping on the structural and photophysical properties of spin-coated CsPbBr perovskite thin films. The deposited films display a pristine structure, preferentially growing along the (220) direction, and exhibit high-quality green photoluminescence at around 530 nm. The doping leads to an improvement in the optical properties of the films, as evidenced by a stronger photoluminescence (PL) intensity compared to undoped CsPbBr, particularly at temperatures below 200 K.

Current state of copper-based bimetallic materials for electrochemical CO reduction: a review.

The increasing CO concentration in the atmosphere has caused profound environmental issues such as global warming. The use of CO as a feedstock to replace traditional fossil sources holds great promise to reduce CO emissions. The electrochemical conversion of CO has attracted much attention because it can be powered by renewable sources such as solar energy.