Influence of different electron acceptors in organic sensitizers on the performance of dye-sensitized solar cells

Yu, Xiaoqiang; Ci, Zhenhua; Li, Teng; Feng, Xiujuan; Wang, Chaolei; Ma, Tingli; Bao, Ming

doi:10.1016/j.dyepig.2013.10.045

Cited by 25 publications

(12 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The obtained efficiency was about 4.93%; the high efficiency was attributed to the maximum absorption spectrum and the highest molar excitation coefficient. Hence, from the studies, it can be concluded that the cyanoacrylic acid acts as a strong electron acceptor for D-π-A-based dyes [68]. Similarly, Lai and co-workers studied the effect of various electron donors on the organic framework-based dyes.…”

Section: Recent Progress In Metal-free Sensitizers For Dsscsmentioning

confidence: 98%

Novel improvements in the sensitizers of dye-sensitized solar cells for enhancement in efficiency-a review

Chawla

Tripathi

2015

Int. J. Energy Res.

View full text Add to dashboard Cite

SummaryIn the present review article, we have focused our study on the novel improvements that have been brought about in the molecular design of various sensitizers for application in dye‐sensitized solar cells (DSSCs). The sensitizers based on noble metals such as ruthenium, osmium, and rhenium showed high efficiency, but their cost and complicated synthesis restrict their wide applications. Further, to reduce the cost of fabrication of DSSCs, researchers are focusing their interest in organic sensitizers. In this context, organic dyes have offered several possibilities, as by improving their molecular structure brings about improvement in the light harvesting ability of dyes, and with the help of such dyes, optimal DSSCs have been fabricated. Further, to reduce the cost of DSSCs, researchers are also focusing on natural sensitizers such as betacyanin and anthocyanin or chlorophyll, as natural sensitizers are easy to prepare, cost effective, and environmentally friendly. With the help of these natural sensitizers, eco‐friendly and more cost‐effective DSSCs can be fabricated. Thus, we found from our study that beside metal‐based sensitizers, organic and natural sensitizers also offer a vast potential for the optimization of efficiency in DSSCs. Copyright © 2015 John Wiley & Sons, Ltd.

show abstract

Section: Recent Progress In Metal-free Sensitizers For Dsscsmentioning

confidence: 98%

Novel improvements in the sensitizers of dye-sensitized solar cells for enhancement in efficiency-a review

Chawla

Tripathi

2015

Int. J. Energy Res.

View full text Add to dashboard Cite

show abstract

“…As good electron injection is one of the parameters for higher efficiency in the DSSCs, cyanoacetic acid and cyanoacrylic acid are well employed as acceptor units due to their strong electron withdrawing capability. Yu et al concluded cyanoacrylic acid as a strong electron acceptor for D–π–A-based dyes because the dye incorporating cyanoacrylic acid as an electron acceptor showed the best results and, due to the maximum absorption spectrum and the highest molar excitation coefficient, the DSSC achieved η = 4.93% [ 219 ]. Wang and co-workers designed organic dyes based on thienothiophene as π conjugation unit, where they used triphenylamine as donor and cyanoacetic acid as an acceptor.…”

Section: Previous and Further Improvements In Dsscsmentioning

confidence: 99%

Dye-Sensitized Solar Cells: Fundamentals and Current Status

Sharma

Sharma³

2018

Nanoscale Res Lett

823

426

View full text Add to dashboard Cite

Dye-sensitized solar cells (DSSCs) belong to the group of thin-film solar cells which have been under extensive research for more than two decades due to their low cost, simple preparation methodology, low toxicity and ease of production. Still, there is lot of scope for the replacement of current DSSC materials due to their high cost, less abundance, and long-term stability. The efficiency of existing DSSCs reaches up to 12%, using Ru(II) dyes by optimizing material and structural properties which is still less than the efficiency offered by first- and second-generation solar cells, i.e., other thin-film solar cells and Si-based solar cells which offer ~ 20–30% efficiency. This article provides an in-depth review on DSSC construction, operating principle, key problems (low efficiency, low scalability, and low stability), prospective efficient materials, and finally a brief insight to commercialization.

show abstract

“…The main components which affect the performance of DSCs are the dyes [ 3 - 13 ], photoelectrodes [ 14 - 38 ], counter cathodes [ 39 - 46 ], and electrolytes [ 47 - 51 ]. Among these components, increasing the surface area of the photoelectrodes and reducing charge recombination between the photoelectrodes and electrolytes are critical factors in improving the efficiencies of DSCs.…”

Section: Introductionmentioning

confidence: 99%

Conical islands of TiO2 nanotube arrays in the photoelectrode of dye-sensitized solar cells

2015

View full text Add to dashboard Cite

Ti conical island structures were fabricated using photolithography and the reactive ion etching method. The resulting conical island structures were anodized in ethylene glycol solution containing 0.25 wt% NH4F and 2 vol% H2O, and conical islands composed of TiO2 nanotubes were successfully formed on the Ti foils. The conical islands composed of TiO2 nanotubes were employed in photoelectrodes for dye-sensitized solar cells (DSCs). DSC photoelectrodes based on planar Ti structures covered with TiO2 nanotubes were also fabricated as a reference. The short-circuit current (Jsc) and efficiency of DSCs based on the conical island structures were higher than those of the reference samples. The efficiency of DSCs based on the conical island structures reached up to 1.866%. From electrochemical impedance spectroscopy and open-circuit voltage (Voc) decay measurements, DSCs based on the conical island structures exhibited a lower charge transfer resistance at the counter cathode and a longer electron lifetime at the interface of the photoelectrode and electrolyte compared to the reference samples. The conical island structure was very effective at improving performances of DSCs based on TiO2 nanotubes.Graphical AbstractConical islands of TiO2 nanotube arrays are fabricated by an anodizing process with Ti protruding dots which have a conical shape. The conical islands are applied for use in DSC photoelectrodes. DSCs based on the conical islands of TiO2 nanotube arrays have the potential to achieve higher efficiency levels compared to DSCs based on normal TiO2 nanotubes and TiO2 nanoparticles because the conical islands of TiO2 nanotube arrays enlarge the surface area for dye adsorption.Electronic supplementary materialThe online version of this article (doi:10.1186/s11671-015-0737-2) contains supplementary material, which is available to authorized users.

show abstract

Influence of different electron acceptors in organic sensitizers on the performance of dye-sensitized solar cells

Cited by 25 publications

References 56 publications

Novel improvements in the sensitizers of dye-sensitized solar cells for enhancement in efficiency-a review

Novel improvements in the sensitizers of dye-sensitized solar cells for enhancement in efficiency-a review

Dye-Sensitized Solar Cells: Fundamentals and Current Status

Conical islands of TiO2 nanotube arrays in the photoelectrode of dye-sensitized solar cells

Contact Info

Product

Resources

About