Figure 3 | Scientific Reports

Figure 3

From: Improved sensitivity of polychlorinated-biphenyl-orientated porous-ZnO surface photovoltage sensors from chemisorption-formed ZnO-CuPc composites

Figure 3

(a) FTIR spectra of porous-ZnO, CuPc and porous-ZnO:1% CuPc at 300 K and that of porous-ZnO:1% CuPc at 5 K. (b) Schematic drawing of the CuPc molecular structure and the H bonding patterns. The bound H atoms and their bonding patterns (types I and II) marked with dashed circles and squares, respectively. (c) Raman spectra of CuPc and porous-ZnO:1% CuPc.

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