Perovskite solar cell – electrochemical double layer capacitor interplay. (20th December 2017)

• Record Type: Journal Article
• Authors: Intermite, Stefania; Arbizzani, Catia; Soavi, Francesca; Gholipour, Somayeh; Turren-Cruz, Silver-Hamill; Correa-Baena, Juan Pablo; Saliba, Michael; Vlachopoulos, Nickolaos; Morteza Ali, Abdollah; Hagfeldt, Anders; Grätzel, Michael
• Is Part Of: Electrochimica acta. Volume 258(2017)
• Page Start: 825
• Page End: 833
• Publication Date: 2017-12-20
• Subjects: Perovskite solar cell -- Electrochemical double-layer capacitor -- Supercapacitor integration; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2017.11.132
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: We demonstrate that by a proper design of a system comprising a perovskite solar cell (PSC) coupled to an electrochemical double-layer capacitor (EDLC), it is possible to simultaneously improve both the PSC and EDLC performance and outperform each single unit behavior. Specifically, we propose a parallel connection of PSC and EDLC of different size. The EDLC buffers PSC fluctuations by storing the converted solar energy permitting for very high power output (increased by 1 order of magnitude). At the same time, the PSC improves the capacitive response of the EDLC that can be downsized towards system miniaturization. Graphical abstract: Highlights: Smart parallel connection of perovskite solar cell and supercapacitor. Parallel connection improves each single unit connection. Parallel connection does not need electronic circuit to commute light/dark operation. Parallel connection effectively buffers discontinuities in solar energy conversion. Current and capacitance are higher than those featured by the single units.