960化工网
Highly flexible, conductive and catalytic Pt networks as transparent counter electrodes for wearable dye-sensitized solar cells†
Ranran Zhou,Wenxi Guo,Ruomeng Yu,Caofeng Pan
Journal of Materials Chemistry A Pub Date : 10/06/2015 00:00:00 , DOI:10.1039/C5TA05377C
Abstract

We present a highly flexible dye-sensitized solar cell composed of TiO2 nanotube arrays (TNARs) as the photoanode and a transparent Pt network electrode as the counter electrode (CE). The network-structured Pt electrodes can be transferred onto arbitrary flexible substrates at room temperature and exhibit remarkable mechanical flexibility in bending and twisting tests. Up to 94% transmittance for Pt network electrodes can be obtained when the sheet resistances are over 170 Ω sq−1. The CV and EIS analyses of the Pt networks reveal a comparable electrocatalytic behavior with the thermally deposited Pt particles on FTO glass. A photoelectric-conversion efficiency (PCE) of 3.82% was obtained by utilizing Pt networks as CEs in TNAR based DSSCs and maintained >90% PCE after 200 bending cycles. Such metal network based electrodes would be widely used not only in flexible solar cells but also in other wearable, lightweight electronic devices.

Graphical abstract: Highly flexible, conductive and catalytic Pt networks as transparent counter electrodes for wearable dye-sensitized solar cells
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