Enhanced performance of dye-sensitized solar cell using Bi2Te3 nanotube/ZnO nanoparticle composite photoanode by the synergistic effect of photovoltaic and thermoelectric conversion

Dou, Yuanyao; Wu, Fang; Fang, Liang; Liu, Gaobin; Mao, Caiying; Wan, Kai; Zhou, Miao

doi:10.1016/j.jpowsour.2015.12.113

Cited by 69 publications

(39 citation statements)

References 44 publications

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“…The HOMO level of sensitizer must be more negative than the redox potential with respect to the vacuum level in the range of 0.2-0.3 eV [26]. From the previous study, the redox potential of I 3 -/I -redox couple was reported to locate in the range of -4.6 to -5 eV [4,5,27,28]. However, HOMO level calculated in this study is located in the range of redox potential.…”

Section: Optical Band Gap and Homo-lumo Calculationsmentioning

confidence: 79%

“…Dye-sensitized solar cells (DSSCs) as the third generation solar cells devices have attract a lot of attention from researches as it is low cost and have potential for high photoconversion efficiency as reported by Gratzel group which have obtained efficiency up to 12% [1][2][3][4]. The components that build up the mechanism in DSSC including porous semiconductor loaded with sensitizer on a glass substrate, redox couple electrolyte, and counter electrode [5]. Sensitizer becomes one of the important components that attract research interest to enhance the device performance.…”

Section: Introductionmentioning

confidence: 99%

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Energy levels of natural sensitizers extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood for dye-sensitized solar cells

Safie

Ludin

Hamid

et al. 2017

Mater Renew Sustain Energy

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Dye-sensitized solar cells (DSSCs) are fabricated using natural sensitizers extracted from rengas (Gluta spp.) and mengkulang (Heritieraelata) wood. The natural sensitizers are extracted using a cold extraction and the Soxhlet extraction methods. This paper presents the results of the analysis of the optical characteristics of the sensitizers via ultraviolet-visible spectrophotometry and Fourier transform infrared spectroscopy. The optical band gap and the highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) levels of each investigated sensitizer are calculated on the basis of the analyzed data collected from photoluminescence and cyclic voltammetry. The DSSCs with the mengkulang sensitizer have better conversion efficiency (n = 0.1695%) than the DSSCs with the rengas sensitizer (n = 0.109%). The performance of the DSSCs indicates an increment as the ratios of the mixed mengkulang:rengas (60%:40%) and mengkulang:rengas (40%:60%) sensitizers increase up to 0.296 and 0.292%, respectively.

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Section: Optical Band Gap and Homo-lumo Calculationsmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Energy levels of natural sensitizers extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood for dye-sensitized solar cells

Safie

Ludin

Hamid

et al. 2017

Mater Renew Sustain Energy

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“…The amount of dye adsorbed by semiconductors can be studied by controlling the size of the semiconductor [6] and modifying the morphological structure of the semiconductor [5]. The properties of the dye solution can also affect a number of dye molecules adsorbed by semiconductors.…”

Section: R E T R a C T E D O N F E B R U A R Y 1 0 2 0 1mentioning

confidence: 99%

“…The acidity of chlorophyll solution can be controlled to pH 3.5 by adding benzoic acid, which helped increase the efficiency of DSSCs from 0.07% to 0.28% [4]. The amount of dye molecules that can be absorbed by the semiconductor is also essential in improving the performance of DSSCs [5]. A number of dye molecules adsorbed by semiconductors influences the electron injection in DSSCs.…”

Section: Introductionmentioning

confidence: 99%

Performance enhancement of dye-sensitized solar cells (DSSCs) using a natural sensitizer

Arifin

Soeparman

Widhiyanuriyawan

et al. 2017

AIP Conference Proceedings

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Abstract. Dye-sensitized solar cells (DSSCs) based on natural sensitizers have become a topic of significant research because of their urgency and importance in the energy conversion field and the following advantages: ease of fabrication, low-cost solar cell, and usage of nontoxic materials. The natural sensitizer in DSSCs is responsible for the absorption of light as well as the injection of charges to the conduction band of the semiconductor such as TiO2 nanoparticles. In this study, the chlorophyll extracted from papaya leaves was used as a natural sensitizer. Dye molecules were adsorbed by TiO2 nanoparticle surfaces when submerged in the dye solution for 24 h. The concentration of the dye solution influences both the amount of dye loading and the DSSC performance. The amount of adsorbed dye molecules by TiO2 nanoparticle was calculated using a desorption method. As the concentration of dye solution was increased, the dye loading capacity and power conversion efficiency increased. Above 90 mM dye solution concentration, however, the DSSC efficiency decreased because dye precipitated on the TiO2 nanostructure. These characteristics of DSSCs were analyzed under the irradiation of 100 mW/cm 2 . The best performance of DSSCs was obtained at 90 mM dye solution, with the values of Voc, Jsc, FF, and efficiency of DSSCs being 0.561 V, 0.402 mA/cm 2 , 41.65%, and 0.094%, respectively.

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“…In spite of recent developments in thermoelectric materials research, the potential impact of thermoelectric materials technology for power generations is handicapped by the heavy usage of toxic, expensive, and rare elements such as Te and Se and their low power output [13,14]. For examples, there are only a few major thermoelectric material systems commercially available now in the world to change the temperature from low to high temperature limited generation including SiGe [15], Bi2Te3 [16,17]and PbTe [18]. The applications of these TE materials especially Tebased materials are largely limited by the element resources, toxicity, and material degeneration at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

A review of thermoelectric ZnO nanostructured ceramics for energy recovery

Mohammed¹,

Sudin²,

Noor³

et al. 2018

IJET

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The thermoelectric devices have the ability to convert heat energy into electrical energy without required moving components, having good reliability however their performance depends on material selections. The advances in the development of thermoelectric materials have highlighted to increase the technology's energy efficiency and waste heat recovery potential at elevated temperatures. The fabrication of these thermoelectric materials depends on the type of these materials and the properties using to evaluate these kind of materials such as thermopower (Seebeck effect), electrical and thermal conductivities. Ceramic thermoelectric materials have attracted increased attention as an alternative approach to traditional thermoelectric materials. From these important thermoelectric ceramic materials that can be a candidate for n-type is ZnO doping, which have excellent thermal and chemical stability, as they are promising for high temperature power generator. This review is an effort to study the thermoelectric properties and elements doping related with zinc oxide nanoceramic materials. Effective ZnO dopants and doping strategies to achieve high electrical and thermal conductivities and high carrier concentration are highlighted in this review to enable the advanced zinc oxide applications in thermoelectric power generation.

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Enhanced performance of dye-sensitized solar cell using Bi2Te3 nanotube/ZnO nanoparticle composite photoanode by the synergistic effect of photovoltaic and thermoelectric conversion

Cited by 69 publications

References 44 publications

Energy levels of natural sensitizers extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood for dye-sensitized solar cells

Energy levels of natural sensitizers extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood for dye-sensitized solar cells

Performance enhancement of dye-sensitized solar cells (DSSCs) using a natural sensitizer

A review of thermoelectric ZnO nanostructured ceramics for energy recovery

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