Figure 2
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Materials characterization. (a) XRD patterns, (b) UV-vis absorption spectra, and (c) XPS spectra of the CuMOF, BiOBr and heterojunction. The photoelectrochemical responses of the heterojunction to (d) AA (25, 50, 100 mM) and (e) DA (0.5, 1.0, 5.0 mM). (f) The dual-directional signaling behaviors of the OPECT device, with the current change (ΔIDS) corresponding to the postsynaptic current.
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