TiO2 compact layers prepared by low temperature colloidal synthesis and deposition for high performance dye-sensitized solar cells

Kovash, Curtiss S.; Hoefelmeyer, James D.; Logue, Brian A.

doi:10.1016/j.electacta.2012.01.092

Cited by 38 publications

(16 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…DSSCs were fabricated according to the procedure of Kovash et al with minor modification. Briefly, colloidal compact TiO 2 (4 nm) was spin coated on FTO‐coated glass slides, which were heated to 450 °C for 30 min.…”

Section: Methodsmentioning

confidence: 99%

Investigation of novel anthracene-bridged carbazoles as sensitizers and Co-sensitizers for dye-sensitized solar cells

Mallam

Elbohy

Qiao

et al. 2015

Int. J. Energy Res.

Self Cite

View full text Add to dashboard Cite

Summary Novel anthracene‐bridged carbazole organic dyes (designated ML4 and ML5) were synthesized using the Suzuki coupling reaction. These dyes were designed to be donor‐π‐conjugation‐acceptor sensitizers for dye‐sensitized solar cells, where the carbazole moiety acts as the donor, the anthracene moiety provides the π‐conjugation, and the cyano acrylic acid acts as the acceptor. Solar cells were fabricated with ML4 and ML5 alone with low power conversion efficiencies, but they were also used as co‐sensitizers with N719, improving the efficiency of the dye‐sensitized solar cells produced by ~3% and ~10%, respectively. Copyright © 2015 John Wiley & Sons, Ltd.

show abstract

Section: Methodsmentioning

confidence: 99%

Investigation of novel anthracene-bridged carbazoles as sensitizers and Co-sensitizers for dye-sensitized solar cells

Mallam

Elbohy

Qiao

et al. 2015

Int. J. Energy Res.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Currently, highly concentrated dye solutions (0.2-0.5 mM) are used for dip-coating 23,[28][29][30]33 . Because the highest efficiency DSC dyes are costly 2, 46-48 , recovery and/or limited use of these expensive dyes is essential for costeffective production of DSCs.…”

Section: Dye Utilizationmentioning

confidence: 99%

“…The typical DSC fabrication process includes preparation of photoelectrodes, dipcoating the photoelectrode with a dye sensitizer, loading a liquid electrolyte, preparing a counter electrode, and packaging [23][24][25][26][27] . Despite simplicity and relatively low energy consumption, the time required to complete this process typically extends beyond 22 hours, leading to limited throughput and cost-effectiveness of the technology.…”

Section: Introductionmentioning

confidence: 99%

Functionalized Carboxylate Deposition for rapid sensitization of dye-sensitized solar cells

et al. 2016

Self Cite

View full text Add to dashboard Cite

The current state-of-the-art dye loading process for modern dye-sensitized solar cells (DSCs), essentially unchanged for the last 24 years, entails dip-coating nanoporous TiO2 photoelectrodes in a concentrated solution of dye for an average of 16 hours. This process constitutes up to 80% of the fabrication time, leads to significant dye waste, and necessitates the use of organic solvents. A promising gas-phase deposition technique, coined Functionalized Carboxylate Deposition (FCD), was used to rapidly deposit a self-assembled monolayer of targeted α-carbon modified carboxylic acid containing dye molecules on TiO2 photoelectrodes. The FCD process successfully reduced the dye loading time by 98% (i.e., 15-20 min compared to an average of 16 hr). Moreover, the FCD-sensitized photoelectrodes produced DSCs with equivalent or higher efficiencies than dip-coating for the dyes used (both in this study and by other researchers). The performance of FCD dye sensitization in this study indicates its potential applicability as a foundational technology for rapid fabrication of efficient DSCs.

show abstract

“…Because FTO substrate cannot be covered by the porous nanocrystalline thin film completely, which leads to direct contact of FTO substrate with the electrolyte, resulting in a recombination process of electrons transferred to FTO with the electrolyte, it is essential to introduce an efficient compact layer as a physical barrier to reduce this charge recombination [5]. The compact layers of ZnO [6], Nb 2 O 5 [7], HfO 2 [8], SrCO 3 [9], Cr 2 O 3 [10] and TiO 2 [11][12][13], have been studied to improve the conversion efficiency of DSSCs, among which the TiO 2 compact layer has drawn much attention in recent years. However, much research has been devoted to the discussion about the compact layer playing a role to suppress recombination of electrons from FTO substrate to the electrolyte [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

TiO2 compact layer for dye-sensitized SnO2 nanocrystalline thin film

Yang

Zhang

et al. 2014

Electrochimica Acta

View full text Add to dashboard Cite

TiO2 compact layers prepared by low temperature colloidal synthesis and deposition for high performance dye-sensitized solar cells

Cited by 38 publications

References 21 publications

Investigation of novel anthracene-bridged carbazoles as sensitizers and Co-sensitizers for dye-sensitized solar cells

Investigation of novel anthracene-bridged carbazoles as sensitizers and Co-sensitizers for dye-sensitized solar cells

Functionalized Carboxylate Deposition for rapid sensitization of dye-sensitized solar cells

TiO2 compact layer for dye-sensitized SnO2 nanocrystalline thin film

Contact Info

Product

Resources

About