Journal
JOURNAL OF POWER SOURCES
Volume 435, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2019.226801
Keywords
Flexible bifacial DSSCs; Indoor-light; Transparent counter-electrodes; Platinum nanoparticles; In-situ electro-deposition
Funding
- General Research Fund from the Research Grants Council of Hong Kong Special Administrative Region, China [HKU 712213E, 17202314]
- Strategic Research Theme on Clean Energy from the University of Hong Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI)
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In this work, a highly transparent, flexible, and efficient Pt counter electrode (CE) via pulse-electrodeposition (PED) is developed for bifacial and flexible dye-sensitized solar cells (DSSCs). The CEs fabricated with Pt nanoparticles by PED technique (PED-PtNPs) is favourable for large-scale production and cost-effective process because the uniform distribution of PtNPs with the size less than 30 nm leads a high catalytic ability, high transmittance, and less Pt loading. The front-side and rear-side power conversion efficiency of full-plastic DSSCs with PED-PtNPs are 5.72% and 5%, respectively. This is 11-18% higher performance than those from the previously reported methods and similar to 90% of the PCE from front illumination is produced from rear illumination. Moreover, our full-plastic DSSCs produce >80% of the PCE under 1sun illumination regardless of illumination direction and reduction in illuminated light intensity, enlightening the potential to indoor application.
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