Printable ternary component polymer-gel electrolytes for long-term stable dye-sensitized solar cells

“…Screen‐printable electrolyte pastes have also been developed (Liu et al, ; Seo, Cha, Kang, & Kang, ). An open issue with the screen printing of semi‐solid electrolytes is how to ensure the complete filling of the pores of the photoelectrode, even though promising results have been shown with doctor blading technique (Venkatesan et al, ; C. Wang, Wang, Shi, Zhang, & Ma, ).…”

Section: Printed Components For Flexible Dye Solar Cellsmentioning

confidence: 99%

Recent progress in flexible dye solar cells

Miettunen

Vapaavuori

Poskela

et al. 2018

WIREs Energy & Environment

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Flexible dye‐sensitized solar cells are an intriguing photovoltaic technology, especially from the point of view of integration of photovoltaics into everyday objects, owing to these solar cells conforming easily to different nonplanar geometries and low‐intensity lighting conditions. However, the commercialization of these devices has not yet fully taken off due to few persisting gaps in the optimization of employed materials and processes. Herein, we focus on the recent progress on flexible dye sensitized solar cells, and how obstacles to larger‐scale production have been removed. There have been major advancements in diverse roll‐to‐roll compatible preparation methods of various cell layers, as well as in understanding the corrosion of metal electrodes in liquid electrolyte. We also pinpoint the remaining challenges for full commercialization of these technologies, one of which is reaching long‐term stability in which case sealing of the flexible device plays a major role. Furthermore, environmental considerations such as the life cycle assessment and the use of more sustainable materials in solar cell preparation are discussed. This article is categorized under: Energy Research & Innovation > Science and Materials Photovoltaics > Science and Materials

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“…This characteristic length, reduced by 1000-fold, prevents variations in spatial performance. Alternative options for inserting electrolyte include printing techniques, many of which are based on quasi-solid electrolytes using a polymer gelator (Rong et al 2013;Seo et al 2014;Wang et al 2013). Recently, inkjet printing of liquid electrolyte has been demonstrated (Hashmi et al 2015), but the rapid evaporation of typical solvents, such as acetonitrile, compromises the success of such system.…”

Section: Introductionmentioning

confidence: 99%

Electrolyte membranes based on ultrafine fibers of acetylated cellulose for improved and long-lasting dye-sensitized solar cells

et al. 2019

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Electrospun nanofibers obtained from cellulose acetate before (CA) and after (DCA) deacetylation were used as electrolyte membranes in dyesensitized solar cells. As holders of the active components of the device and compared to the reference system, the CA and DCA membranes increased the average device efficiency by as much as 14%. The membranes enhanced the charge transfer at the counter electrode (assessed by the Ohmic and charge transfer resistance and corresponding Helmholtz capacitance). Simultaneously, the photoelectrode did not interfere with the performance as measured by the short-circuit current density, open circuit voltage, fill factor and conversion efficiency. Long-term stability tests (light soaking) showed that the CA-and DCAbased solar cells sustain operation for at least 500 h. For long term use and/or to serve as a scaffold for other purposes, DCA performs better than CA. The proposed active electrolyte membranes are expected to open the way toward rapid and continuous assembly of dye sensitize solar cells using cellulose esters.

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Printable ternary component polymer-gel electrolytes for long-term stable dye-sensitized solar cells

Cited by 36 publications

References 28 publications

MoSe2 nanosheet/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) composite film as a Pt-free counter electrode for dye-sensitized solar cells

MoSe2 nanosheet/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) composite film as a Pt-free counter electrode for dye-sensitized solar cells

Recent progress in flexible dye solar cells

Electrolyte membranes based on ultrafine fibers of acetylated cellulose for improved and long-lasting dye-sensitized solar cells

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