Xiaodong Wang

2 months ago | nature.com | Xiao-Lei Shi |Xiaodong Wang |Qingfeng Liu |Jennifer Tzivia MacLeod |Jennifer M. Macleod

AbstractThe debate over the optimal orientation of Ag2Se thin films and its influence on thermoelectric performance remains ongoing. Here, we report a wet-chemical selenization-based anisotropy optimization technique to control the in-plane orientation of the Ag2Se thin film, steering it away from (002) nearly parallel planes that hinder charge carrier mobility. This approach enables us to achieve an impressive power factor of 30.8 μW cm−1 K−2 at 343 K.