Inorganic–organic metal halide perovskite light harvester-based perovskite solar cells (PSCs) have come to the limelight of solar cell research due to their rapid growth in efficiency. At present, ...

1Bioengineering Graduate Program, The Hong Kong University of Science and Technology, Hong Kong, China; 2Department of Biology, The Hong Kong University of Science and Technology, Hong Kong, China; ...

The solution turns brown. This brown colour is the displaced bromine. The chlorine has gone to form sodium chloride.