Fig. 2: Thicknesses and exciton dynamics characterizations of O-I heterojunction. | npj 2D Materials and Applications

Fig. 2: Thicknesses and exciton dynamics characterizations of O-I heterojunction.

From: Manipulating the interlayer carrier diffusion and extraction process in organic-inorganic heterojunctions: from 2D to 3D structures

Fig. 2

a AFM image of 2D (0.6 nm) organic tetracene layer. The test area was indicated with the white line (scale bar: 500 nm). b AFM image of 4 nm organic tetracene layer. The test area was indicated with the white line (scale bar: 100 nm). c AFM image of bulk (>20 nm) organic tetracene layer. The test area was indicated with the white line (scale bar: 200 nm). d Steady-state absorption spectra of monolayer MoS2, tetracene and tetracene/MoS2 organic-inorganic heterostructure, respectively. e Steady-state PL spectra of tetracene layer with different thicknesses. f Normalized time-resolved PL decay profiles of tetracene layer with different thicknesses.

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