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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Sens Actuators B Chem. 2020 Feb 6;310:127838. doi: 10.1016/j.snb.2020.127838

Figure 4.

Figure 4.

(a) The optical absorption spectra of BLUF-K5 (black) and RoBLUF (red). (b) Wavelength dependence of the photocurrent responses of detectors before and after functionalization, pristine graphene (blue), cross-linked BLUF-K5 (black) and of cross-linked RoBLUF (red).