Fig. 2: High-pressure tuning of the band gap for AgSePh crystals. | Nature Communications

Fig. 2: High-pressure tuning of the band gap for AgSePh crystals.

From: Brightening self-trapped exciton emission in 2D metal-organic chalcogenolates via argentophilicity-mediated anisotropic compression

Fig. 2

a Absorption spectra for AgSePh as a function of pressure. Purple arrows indicate the evolution of the absorption edge upon compression. b Optical micrographs of AgSePh single crystal under different pressures. c Pressure-dependent band gap of AgSePh. The error bars were obtained from the Tauc plot of the absorption spectra. d The electronic band structure for AgSePh with P 21/c space group.

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