The increased number of carrier pockets near the Fermi level and the optimized carrier concentration in doped SnSe single crystal can lead to a high averageZTave∼ 1.2 from 300 K to 800 K and a peakZTmaxvalue in excess of 2.0 at 800 K along the crystallographicb-axis.

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Highlights d Supervised scRNA-seq uncovers unexpected heterogeneity within club-like cells d Specialized epithelial progenitors with unique features hide among mature cells d Different stem/progenitors are activated in region and injurydependent manner d Transplantation of expanded progenitors rescues lung function of injured mice