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Nano Convergence
Fig. 4 | Nano Convergence

Fig. 4

From: Growth of centimeter-scale perovskite single-crystalline thin film via surface engineering

Fig. 4

Characterization of MAPbBr3 SC-TF photodetector. a Structure of the device. The film is sandwiched in the ITO substrate and top Au electrode, forming a metal–semiconductor-metal structure. b Gain and responsivity of the device at different incident power density. The largest gain is ~ \(10^{4}\) which benefits from the high crystallinity and thin thickness of the active layer. c 3 dB bandwidth of the device is measured as 750 Hz

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