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Fig. 2 | SpringerPlus

Fig. 2

From: Changing the thickness of two layers: i-ZnO nanorods, p-Cu2O and its influence on the carriers transport mechanism of the p-Cu2O/i-ZnO nanorods/n-IGZO heterojunction

Fig. 2

SEM images of the p-Cu2O/i-ZnO nanorods/n-IGZO heterojunction. a ZnO nanorods on IGZO substrate. b Top-view of ZnO nanorods. c The cross-section image of the p-Cu2O/i-ZnO nanorods/n-IGZO with growth-time of ZnO nanorods is 2000 s. d The cross-section image of the p-Cu2O/i-ZnO nanorods/n-IGZO with growth-time of ZnO nanorods is 4000 s. e The cross-section image of the p-Cu2O/i-ZnO nanorods/n-IGZO with growth-time of Cu2O is increased to 6 h. f Top-view of Cu2O surface

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