Spray deposited Nb2O5 thin film electrodes for fabrication of dye sensitized solar cells

Kovendhan, M.; Joseph, D. Paul; Manimuthu, P.; Ganesan, S.; Sambasivam, Sangaraju; Maruthamuthu, P.; Suthanthiraraj, S. Austin; Venkateswaran, C.; Mohan, R.

doi:10.1007/s12666-011-0036-2

Cited by 18 publications

(10 citation statements)

References 29 publications

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“…Titanium (IV)oxy acetylacetonate 2-butanol solution may be used as the starting precursor for the fabrication of TiO 2 thin films with a substrate temperature of about 300 °C [51]. Also, Nb 2 O 5 produced by spray pyrolysis may be used as the counter electrode in a DSSC [52]. Transparent conducting Li-doped NiO thin films [53] and water-soluble polyelectrolyte-grafted multi-walled carbon nanotube films [54] are the other layers that may be fabricated by spray pyrolysis.…”

Section: Recent Advances On Spray-on Dsscsmentioning

confidence: 99%

Spray-on Thin Film PV Solar Cells: Advances, Potentials and Challenges

Eslamian

2014

Coatings

139

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Abstract:The capability to fabricate photovoltaic (PV) solar cells on a large scale and at a competitive price is a milestone waiting to be achieved. Currently, such a fabrication method is lacking because the effective methods are either difficult to scale up or expensive due to the necessity for fabrication in a vacuum environment. Nevertheless, for a class of thin film solar cells, in which the solar cell materials can be processed in a solution, up scalable and vacuum-free fabrication techniques can be envisioned. In this context, all or some layers of polymer, dye-sensitized, quantum dot, and copper indium gallium selenide thin film solar cells illustrate some examples that may be processed in solution. The solution-processed materials may be transferred to the substrate by atomizing the solution and carrying the spray droplets to the substrate, a process that will form a thin film after evaporation of the solvent. Spray coating is performed at atmospheric pressure using low cost equipment with a roll-to-roll process capability, making it an attractive fabrication technique, provided that fairly uniform layers with high charge carrier separation and transport capability can be made. In this paper, the feasibility, the recent advances and challenges of fabricating spray-on thin film solar cells, the dynamics of spray and droplet impaction on the substrate, the photo-induced electron transfer in spray-on solar cells, the challenges on characterization and simulation, and the commercialization status of spray-on solar cells are discussed.

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Section: Recent Advances On Spray-on Dsscsmentioning

confidence: 99%

Spray-on Thin Film PV Solar Cells: Advances, Potentials and Challenges

Eslamian

2014

Coatings

139

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“…In order to overcome this serious problem, designing a photoanode with an efficient transport pathway from the photoinjected charge carriers to the current collector is essential to enhance the device performance . Several attempts have been made to enhance the electron transport and prevent charge recombination, including the surface modification of TiO 2 by doping with metals and non‐metals , coupling the TiO 2 with another semiconductor, and creating a hybrid with carbonaceous materials such as carbon nanotube (CNT), multi‐wall carbon nanotube (MWCNT), graphene oxide (GO) and reduced graphene oxide (rGO)…etc. .…”

Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide-titania nanocomposite-modified photoanode for efficient dye-sensitized solar cells

Lim

Pandikumar

Huang

et al. 2015

Int. J. Energy Res.

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SUMMARYWe report the successful application of reduced graphene oxide-titania (rGO-TiO 2 ) nanocomposite as an efficient photoanode for dye-sensitized solar cell (DSSC). The DSSC assembled with the rGO-TiO 2 -modified photoanode demonstrated an enhanced solar to electrical energy conversion efficiency of 4.74% compared with the photoanode of DSSC composed with unmodified TiO 2 (2.19%) under full sunlight illumination (100 mW/cm 2 , AM 1.5G) as a result of the better charge collection efficiency of rGO, which reduced the back electron transfer process. Influence of the rGO content on the overall efficiency was also investigated, and the optimal rGO content for TiO 2 was 0.5 mg. Further, the modification of rGO-TiO 2 on the compact layer TiO 2 surface led to an increase in efficiency to 5.83%. The superior charge collection and enhanced solar energy conversion efficiency of the rGO-TiO 2 nanocomposite makes it to be used as a promising alternative to conventional photoanode-based DSSCs.

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“…The Nb 2 O 5 :Li (3 wt%) thin film of thickness 353 nm is spray deposited onto ITO coated glass substrate [3]. A1x1 cm 2 film was irradiated with 100 MeV O 7+ ions at a fluence of 5×10 12 ions/cm 2 using 15 UD pelletron accelerator.…”

Section: Methodsmentioning

confidence: 99%