Stigma and Mental Illness. Stigma has been defined as an attribute that is deeply discrediting.1 This stigmatized trait sets the bearer apart from the rest of society, bringing with it feelings of shame and isolation.
The performance of metal halide perovskite solar cells has made rapid increases in energy conversion efficiency, improving from under 4% efficiency in 2010 to a record efficiency of 22% in 2016. Because of the high absorption coefficient, a thickness of only about 500 nm is needed to absorb solar energy.
As a result, we achieved a 15% conversion efficiency in perovskite solar cells for the first time in the world as certified by the international public test centre (Calibration, Standards and Measurement Team at the Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology).