The rising power demand in off-grid conditions and the unstable nature of solar radiation are forcing the scientific and industrial community to investigate the feasibility of integrated harvesting storage devices, capable to convert the electromagnetic radiation coming from the sun into power and directly store it into a storage media. Among the third generation PV technologies a good compromise between cost, relatively high efficiency and medium-long life stability is represented by the so called Dye sensitized solar cells (DSSCs), which work well also with diffuse radiation or under low illumination conditions [1]. Regarding the storage section, the majority of work reported in literature deals with a supercapacitor (SC) instead of a battery. This is mainly related to the simpler configuration and less restrictive technical specifications required by SC with respect to batteries. In addition, SCs have a consistently longer cycle life, a much higher power density and appear also intrinsically safer than batteries because no redox reactions occur during operation, and the power is just electrostatically stored in the storage media. In the last year different photo-capacitors (PCs) structure regarding DSSCs and carbon-based SCs integration were proposed. Here we present a highly flexible photo-capacitor [2], fabricated with metallic grids as current collectors and polymer electrolyte both for the DSSC and SC section. Integration was performed testing photo-charge curve under different illumination conditions and subsequently discharging the SC section with imposed constant current. Here we also present innovative solutions regarding high energy PCs and new possible smart PCs configurations.

Photo-capacitors: Dye sensitized PV technology and carbon-based electrical double layer capacitors integration / Scalia, Alberto; Lamberti, Andrea; Varzi, Alberto; Jeong, Sangsik; Passerini, Stefano; Tresso, Elena Maria. - (2018), pp. 58-58. ((Intervento presentato al convegno Giornate dell'elettrochimica italiana winter 2018 tenutosi a Sestriere (Italy) nel 21-25 Gennaio 2018.

Photo-capacitors: Dye sensitized PV technology and carbon-based electrical double layer capacitors integration

Alberto Scalia;Andrea Lamberti;Elena Tresso.
2018

Abstract

The rising power demand in off-grid conditions and the unstable nature of solar radiation are forcing the scientific and industrial community to investigate the feasibility of integrated harvesting storage devices, capable to convert the electromagnetic radiation coming from the sun into power and directly store it into a storage media. Among the third generation PV technologies a good compromise between cost, relatively high efficiency and medium-long life stability is represented by the so called Dye sensitized solar cells (DSSCs), which work well also with diffuse radiation or under low illumination conditions [1]. Regarding the storage section, the majority of work reported in literature deals with a supercapacitor (SC) instead of a battery. This is mainly related to the simpler configuration and less restrictive technical specifications required by SC with respect to batteries. In addition, SCs have a consistently longer cycle life, a much higher power density and appear also intrinsically safer than batteries because no redox reactions occur during operation, and the power is just electrostatically stored in the storage media. In the last year different photo-capacitors (PCs) structure regarding DSSCs and carbon-based SCs integration were proposed. Here we present a highly flexible photo-capacitor [2], fabricated with metallic grids as current collectors and polymer electrolyte both for the DSSC and SC section. Integration was performed testing photo-charge curve under different illumination conditions and subsequently discharging the SC section with imposed constant current. Here we also present innovative solutions regarding high energy PCs and new possible smart PCs configurations.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2700909
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