Effects of alkyl-, polyfluoroalkyl-, and perfluoroalkyl carboxylic acids on the performance of D205 in dye-sensitized solar cells

Matsui, Masaki; Mizutani, Tomu; Manseki, Kazuhiro; Kubota, Yasuhiro; Kubo, Shinji; Tomoda, Hideyuki; Dentani, Takuya

doi:10.1016/j.jphotochem.2017.08.027

Cited by 5 publications

(1 citation statement)

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“…In the regime of organic PV's (OPVs) fluorinated alkyl chains has been effectively employed to result in surface segregated monolayer to achieve better charge transfer, polymer alignment and direction of dipole moment at the interface [139][140][141]. For TiO 2 modification, detailed studies focused on unrevealing the impressive effect of fluorinated alkyl chains evidenced, enhanced electron lifetime in TiO 2 , de-aggregating behavior for organic dyes, negative (upward) conduction band shift of TiO 2 with metal complex dye, hydrophobicity and overall PCE enhancements presumably due to fluorinated self-assembled monolayer formation (FSAM) [53,94,[142][143][144][145]. Interestingly, in one study, cationically charged TMEA-TMOS ( Figure 15) outperformed C16 based alkyl chain analog when used with Ru (II) dye and cobalt redox shuttle.…”

Section: Alkoxysilyl-based Anchoring Additivesmentioning

confidence: 99%

Titanium Dioxide Modifications for Energy Conversion: Learnings from Dye-Sensitized Solar Cells

Cheema¹,

Joya²

2018

Titanium Dioxide - Material for a Sustainable Environment

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During the last two and half decade modifying anatase TiO 2 has appreciably enhanced our understanding and application of this semiconducting, non-toxic material. In the domain of DSCs, the main focus has been to achieve band adjustment to facilitate electron injection from anchored dyes, and high electronic mobility for photo-generated electron collection. In retrospection, there is a dire need to assimilate and summarize the findings of these studies to further catalyze the research, better understanding and comparison of the structure-property relationships in modifying TiO 2 efficiently for crucial photocatalytic, electrochemical and nanostructured applications. This chapter aims at categorizing the typical approaches used to modify TiO 2 in the domain of DSCs such as through TiO 2 paste additives, TiO 2 doping, metal oxides inclusion, dye solution co-adsorbing additives, post staining surface treatment additives and electrolyte additives. A summary of the consequences of these modifications on electron injection, charge extraction, electronic mobility, conduction band shift and surface states has been presented. This chapter is expected to hugely benefit the researchers employing TiO 2 in energy, catalysis and battery applications.

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