Fig. 3 | Nature Communications

Fig. 3

From: In-situ local phase-transitioned MoSe2 in La0.5Sr0.5CoO3-δ heterostructure and stable overall water electrolysis over 1000 hours

Fig. 3

Analysis of physical properties of LSC&MoSe2. Fluorescence emission spectra of a MoSe2, MoSe2/KB, LSC&MoSe2, and LSC/MoSe2 (The concentration of MoSe2 in all samples is fixed as 0.33 mg/mL), illustrating the 2H-phase of the as-prepared MoSe2 and electron transfers among MoSe2, LSC, and KB. UV-vis-NIR spectra of b MoSe2, indicating the presence of A and B excitons, which are attributed to direct excitonic transition of K points in the Brillouin zone, and c LSC&MoSe2, illustrating its metallic feature. d TGA analysis of LSC and LSC&MoSe2 pre-exposed to wet-air for 24 h. e UPS valence band spectra of LSC and LSC&MoSe2. f Nyquist plots of HER (upper) and OER (lower) of MoSe2, LSC, and LSC&MoSe2

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