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Expanding light utilization to near-infrared region for hybrid bio-photoelectrochemical cells

Abstract

The insatiable energy demand asks for the maximum conversion of green renewable sources. Herein, we propose the first NIR-assisted glucose/air bio-photoelectrochemical (BPEC) cell comprising a rare earth up-conversion microcrystals (UCMCs)-based polyterthiophene (pTTh) cathode. Upon the irradiation of 980 nm laser, UCMCs emit robust luminescence in the visible range, which can efficiently excite pTTh, catalyzing the reduction of oxygen and generating photocurrent. Coupling with a glucose oxidation bioanode, this assembled BPEC cell exhibits the maximal output power density of 40.6 μW cm-2 and the open circuit voltage of 0.53 V. This success is an essential conceptual steppingstone towards the comprehensive utilization of the whole sunlight and offers alternative solutions for multiple energy conversion.

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Publication details

The article was received on 13 Apr 2017, accepted on 06 Jun 2017 and first published on 08 Jun 2017


Article type: Paper
DOI: 10.1039/C7NR02636F
Citation: Nanoscale, 2017, Accepted Manuscript
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    Expanding light utilization to near-infrared region for hybrid bio-photoelectrochemical cells

    L. Zhang, H. Zhang, X. zhang, Y. Han, H. Zhang, Y. Zhai and S. Dong, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR02636F

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