Photoelectrochemical performance of dye sensitized solar cells based on aluminum-doped titanium dioxide structures

Manoharan, Kapil; Venkatachalam, P.

doi:10.1016/j.mssp.2014.08.012

Cited by 16 publications

(6 citation statements)

References 51 publications

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“…As such, post-transition metals have some non-metal properties, showing covalent bonding effects. The investigated post-transition metals are aluminum, 51,80,81,[208][209][210] gallium, 181 indium 83,211 and tin. 73,78,83,147 4.5.1 Aluminum.…”

Section: Post-transition Metalsmentioning

confidence: 99%

“…A larger surface area of the mesoporous electrode and better charge injection resulted in a larger J SC , while the Al 2 O 3 phase acted as a blocking layer, preventing charge recombination. 209 Al-doping was shown to inhibit the formation of rutile, leading to a decreased band gap and enhancing J SC through improved electron injection. A larger surface area of the nanoparticle assembly and higher anatase content further improved J SC .…”

Section: Post-transition Metalsmentioning

confidence: 99%

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Doping of TiO₂for sensitized solar cells

2015

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This review gives a detailed summary and evaluation of the use of TiO2 doping to improve the performance of dye sensitized solar cells. Doping has a major effect on the band structure and trap states of TiO2, which in turn affect important properties such as the conduction band energy, charge transport, recombination and collection. The defect states of TiO2 are highly dependent on the synthesis method and thus the effect of doping may vary for different synthesis techniques, making it difficult to compare the suitability of different dopants. High-throughput methods may be employed to achieve a rough prediction on the suitability of dopants for a specific synthesis method. It was however found that nearly every employed dopant can be used to increase device performance, indicating that the improvement is not so much caused by the dopant itself, as by the defects it eliminates from TiO2. Furthermore, with the field shifting from dye sensitized solar cells to perovskite solar cells, the role doping can play to further advance this emerging field is also discussed.

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Section: Post-transition Metalsmentioning

confidence: 99%

Section: Post-transition Metalsmentioning

confidence: 99%

Doping of TiO₂for sensitized solar cells

2015

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“…The maximum obtained efficiency is 7.26%[172]. An efficiency value of 3.44% has been reported by Song et al[173] using as double scattering layer a ZnO film consisting of ZnO monodisperse light-scattering layer and a submicrometer-sized plate-like ZnO film as overlayer in the photoanode of a DSSC.…”

mentioning

confidence: 67%

Nanostructured Semiconductor Materials for Dye-Sensitized Solar Cells

Cavallo

Pascasio

Latini

et al. 2017

Journal of Nanomaterials

112

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Since O’Regan and Grätzel’s first report in 1991, dye-sensitized solar cells (DSSCs) appeared immediately as a promising low-cost photovoltaic technology. In fact, though being far less efficient than conventional silicon-based photovoltaics (being the maximum, lab scale prototype reported efficiency around 13%), the simple design of the device and the absence of the strict and expensive manufacturing processes needed for conventional photovoltaics make them attractive in small-power applications especially in low-light conditions, where they outperform their silicon counterparts. Nanomaterials are at the very heart of DSSC, as the success of its design is due to the use of nanostructures at both the anode and the cathode. In this review, we present the state of the art for bothn-type andp-type semiconductors used in the photoelectrodes of DSSCs, showing the evolution of the materials during the 25 years of history of this kind of devices. In the case ofp-type semiconductors, also some other energy conversion applications are touched upon.

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“…Metal oxide semiconductor such as TiO 2 , SnO 2 , and WO 3 is widely studied as having a great potential as photoelectrodes in PEC system [2]. Nonetheless, TiO 2 semiconductor is more favorable due to its good stability in thermal and chemical properties, inexpensive and non-toxic [3]. However, TiO 2 is characterized by its wide band gap of 3.2 eV (anatase phase) and required Ultra-Violet (UV) irradiation which only absorb small fraction (< 10 %) of the sunlight energy [3,4].…”

Section: Siti Nur Hidayah Et Al: Effect Of Using Pitaya Peel As Dye-smentioning

confidence: 99%

“…Nonetheless, TiO 2 semiconductor is more favorable due to its good stability in thermal and chemical properties, inexpensive and non-toxic [3]. However, TiO 2 is characterized by its wide band gap of 3.2 eV (anatase phase) and required Ultra-Violet (UV) irradiation which only absorb small fraction (< 10 %) of the sunlight energy [3,4]. An improvement of TiO 2 semiconductor can be achieved by using dye sensitizer plays as a main role in absorbing light energy in production of hydrogen [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Using Pitaya Peel as Dye-Sensitizer and Dye Molecules in Electrolyte for Photoelectrochemical Reaction

Jaafar¹,

Minggu²,

Arifin³

et al. 2016

MJAS

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Natural dye sensitizer in photoelectrochemical shows a great potential in improving the efficiency of metal oxide semiconductor especially Titanium dioxide (TiO 2 ) due to its prominent in absorbing visible light and also low cost. In this work, the effect of using pitaya peel as natural dye sensitizes to TiO 2 has been studied through characterizations analysis and PEC test. The bare TiO 2 thin films were fabricated on Fluorine-doped tin oxide (FTO) glass substrate by doctor blade method meanwhile dyesensitized TiO 2 thin films prepared by immersion of TiO 2 in the dye extracts. The fabricated thin films were characterized with Scanning Electron Microscopy (SEM), X-ray difractometer (XRD), UV-Vis spectrophotometer and photoelectrochemical analysis. The surface of TiO 2 was porous and uniform meanwhile dye particles could not been observed due to very small size. The energy band gap of dye-sensitized TiO 2 from the UV-Vis spectrum is 2.1 eV which is smaller than bare TiO 2 (3.7 eV). Meanwhile, photoactivities of dye-sensitized TiO 2 has the highest compared to bare TiO 2 photoelectrodes which is 127µA/cm 2 in 6.25% v/v of pitaya dye in the electrolyte.Keywords: titanium dioxide, dye-sensitizers, betalains, photoelectrochemical cell, water splitting Abstrak Pemeka-pewarna semulajadi di dalam fotoelektromia (PEC) menunjukkan potensi yang bagus untuk meningkatkan keupayaan semikonduktor logam oksida terutamanya titanium dioksida (TiO 2 ) disebabkan kemampuannya untum menyerap cahaya nampak dan kos yang rendah. Di dalam penyelidikan ini, kesan menggunakan kulit buah naga sebagai pemeka-pewarna semulajadi terhadap TiO 2 telah dikaji melalui pencirian dan analisis fotoelektrokimia. Filem nipis TiO 2 asli telah dihasilkan melalui kaedah Doctor blade di atas kepingan kaca bersalut FTO (Stanum oksida terdop fluorin) manakala filem nipis TiO 2 dengan pewarnapemeka telah dihasilkan dengan merendam TiO 2 ke dalam larutan ekstrak pewarna. Filem nipis yang telah terbentuk telah melalui beberapa analisis pencirian iaitu, Mikroskopi Elektron Imbasan (SEM), Difraktometer Pembelauan Sinar-X (XRD), Spektrofotometer Ultralembayung dan Cahaya Nampak (UV-Vis) dan juga ujian fotoelektrokimia. Permukaan TiO 2 adalah berliang dan seragam manakala zarah pewarna tidak dapat dilihat disebabkan saiznya yang terlalu kecil. Jurang tenaga filem nipis TiO 2 dengan pewarna-pemeka adalah lebih rendah iaitu 2.1 eV jika dibandingkan dengan TiO 2 asli (3.7 eV). Manakala, fotoaktiviti bagi fotoelektrod TiO 2 dengan pewarna-pemeka adalah lebih tinggi daripada TiO 2 asli dengan 127µA/cm 2 di dalam kepekatan 6.25% v/v pewarna di dalam elektrolit. ISSN -2506 Siti Nur Hidayah et al: EFFECT OF USING PITAYA PEEL AS DYE-SENSITIZER AND DYE MOLECULES IN ELECTROLYTE FOR PHOTOELECTROCHEMICAL REACTION 652Kata kunci: titanium dioksida, pemeka-pewarna, betalain, sel fotoelektrokimia, pembelahan air Introduction The hydrogen gas production by using solar energy is deliberated as one of the most significant sustainable and clean energy technologies [1]. Photo...

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Photoelectrochemical performance of dye sensitized solar cells based on aluminum-doped titanium dioxide structures

Cited by 16 publications

References 51 publications

Doping of TiO₂for sensitized solar cells

Doping of TiO₂for sensitized solar cells

Nanostructured Semiconductor Materials for Dye-Sensitized Solar Cells

Effect of Using Pitaya Peel as Dye-Sensitizer and Dye Molecules in Electrolyte for Photoelectrochemical Reaction

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Photoelectrochemical performance of dye sensitized solar cells based on aluminum-doped titanium dioxide structures

Cited by 16 publications

References 51 publications

Doping of TiO2for sensitized solar cells

Doping of TiO2for sensitized solar cells

Nanostructured Semiconductor Materials for Dye-Sensitized Solar Cells

Effect of Using Pitaya Peel as Dye-Sensitizer and Dye Molecules in Electrolyte for Photoelectrochemical Reaction

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Doping of TiO₂for sensitized solar cells

Doping of TiO₂for sensitized solar cells