对P.A.Munz《亚洲翠雀属（狭义）植物纲要》中中国种类的错误鉴定的进一步订正

通过检查美国哈佛大学Gray标本馆（GH）、英国邱皇家植物园标本馆（K）和英国自然历史博物馆（BM）的中国翠雀属Delphinium L.植物标本，在王文采有关工作的基础上，对P.A.Munz1967-1968年在其《亚洲翠雀属（狭义）植物纲要》一文中有关中国种类的错误鉴定进行了进一步订正，给出了有关误订标本的重要鉴别特征。     

Spatial decoupling of light absorption and reaction sites in n-Si photocathodes for solar water splitting

Metal-insulator-semiconductor (MIS) photocathodes offer a simple alternative to p-n junction photocathodes in photoelectrochemical water splitting. However, the parasitic light absorption of catalysts and metal layers in the MIS junction, as well as the lack of low work function metals to form a large band offset with p-Si, severely limit their performance. This paper describes an MIS photocathode fabricated from n-Si, rather than the commonly used p-Si, to spatially decouple light absorption from reaction sites, which enables the majority carriers, instead of the commonly used minority carriers, to drive the surface reaction, making it possible to place the reaction sites far away from the light absorption region. Thus, the catalysts could be moved to the backside of the MIS junction to avoid light shielding. Moreover, the adoption of n-Si unlocks a variety of high work function materials for photovoltage generation. The obtained n-Si MIS photocathode exhibits an applied bias photon-to-current efficiency of 10.26% with a stability up to 300 h.