Quantum-sized nanomaterials for solar cell applications

Kumar, Sandeep; Nehra, Monika; Deep, Akash; Kedia, Deepak; Dilbaghi, Neeraj; Kim, Ki‐Hyun

doi:10.1016/j.rser.2017.01.172

Cited by 88 publications

(32 citation statements)

References 241 publications

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“…Generally, semiconducting nanomaterials have numerous applications in different fields for instances magnetic, optoelectronic, bio‐imaging and solar cells . However most of the semiconductors consist of toxic elements like cadmium, chromium, lead and so on, which cause hazardous effects on environment or human being.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6][7][8][9] Generally, semiconducting nanomaterials have numerous applications in different fields for instances magnetic, optoelectronic, bio-imaging and solar cells. [10][11][12][13][14] However most of the semiconductors consist of toxic elements like cadmium, chromium, lead and so on, which cause hazardous effects on environment or human being. Therefore, recently non-toxic element containing semiconducting nanomaterials are being explored for photo-catalytically degradation of organic pollutants in the presence of visible or sunlight.…”

Section: Introductionmentioning

confidence: 99%

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Tuning the Crystal Phase and Morphology of the Photoluminescent Indium Sulphide Nanocrystals and Their Adsorption‐Based Catalytic and Photocatalytic Applications

et al. 2018

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Phase pure quantum confined In2S3 nanocrystals with high catalytic/photocatalytic efficiency are accessible solvothermally using task specific ionic liquid (IL) as structure directing agent and thiourea as sulphur source. Selective tuning of the shape, morphology and most importantly purity of the nanomaterials are controlled by changing the reaction time, IL and specially sulphur concentration. For instances, at 150oC, when IL is used cubic phase is obtained; however in absence of IL, tetragonal phase with bigger crystallite size appears. In most of the cases In(OH)3 is coming as an impurity; however pure In2S3 with highest catalytic efficiency and band gap of 2.23 eV is achieved when 18 times sulphur concentration is used keeping other reaction parameters same. Photoluminescence emission spectra show that quantum confined pure In2S3 nanoparticles are blue emitting material. Furthermore, pure In2S3 nanoparticles are used for degradation of both cationic [crystal violet, methylene blue, rhodamine B] and anionic organic dyes [methyl orange]. Rate and overall catalytic efficiency are found highest for crystal violet (91%) followed by methylene blue (77%), rhodamine B (44.7%) and least for methyl orange (15.29%). Analysis reveals that along with electrostatic interaction, molecular structures of dye molecules have also significant impact on adsorption capacity which finally governs the catalytic (even in the dark) and photocatalytic efficiency of nanocrystals.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tuning the Crystal Phase and Morphology of the Photoluminescent Indium Sulphide Nanocrystals and Their Adsorption‐Based Catalytic and Photocatalytic Applications

et al. 2018

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“…So the lifetime of the carriers becomes longer and the recombination probability becomes smaller. of modified model is very reasonable because, until now, there is no an experimental study related to type-I core/shell QDNC solar cells reported with higher efficiency values more than 4% [33]. Indeed, the type-I QDNCs are more compatible for LEDs rather than solar cells.…”

Section: Resultsmentioning

confidence: 91%

Effect of the shell material and confinement type on the conversion efficiency of core/shell quantum dot nanocrystal solar cells

Şahin

2018

J. Phys.: Condens. Matter

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In this study, the effects of the shell material and confinement type on the conversion efficiency of core/shell quantum dot nanocrystal (QDNC) solar cells have been investigated in detail. For this purpose, the conventional, i.e. original, detailed balance model, developed by Shockley and Queisser to calculate an upper limit for the conversion efficiency of silicon p-n junction solar cells, is modified in a simple and effective way to calculate the conversion efficiency of core/shell QDNC solar cells. Since the existing model relies on the gap energy ([Formula: see text]) of the solar cell, it does not make an estimation about the effect of QDNC materials on the efficiency of the solar cells, and gives the same efficiency values for several QDNC solar cells with the same [Formula: see text]. The proposed modification, however, estimates a conversion efficiency in relation to the material properties and also the confinement type of the QDNCs. The results of the modified model show that, in contrast to the original one, the conversion efficiencies of different QDNC solar cells, even if they have the same [Formula: see text], become different depending upon the confinement type and shell material of the core/shell QDNCs, and this is crucial in the design and fabrication of the new generation solar cells to predict the confinement type and also appropriate QDNC materials for better efficiency.

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“…Se diseñan nanomateriales para proteger el medio ambiente, pues con este tipo de materiales se planean celdas solares de última generación, se implementan procesos para la limpieza de agua y se proyectan sensores para la detección de contaminantes (Kumar et al, 2017;Savage y Diallo, 2005;Khin, 2012). En medicina y salud se diseñan biosensores para detección temprana de compuestos asociados con problemas de salud, se usan nanomateriales para obtener imágenes de áreas dañadas que permiten una identificación rápida y precisa, y se implementan diferentes tipos de terapia, entre ellas terapia fototérmica, terapia fotodinámica y la entrega dirigida de medicamentos (Riehemann et al, 2009;Shi et al, 2017;Lammers et al, 2011;Bai et al, 2015).…”

Section: Introductionunclassified

Algunas aplicaciones de la nanofotónica en la biomedicina

Rosa

Ramírez

Panikar³

et al. 2019

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In this work, the optical and electronic properties of nanomaterials are discussed, its fundamental characteristics and its application in the design of devices and techniques for detection, imaging and therapy, especially in cancer problems, are analyzed. Some recent results obtained in our laboratory where we have been able to measure concentrations of the order of 10 -22 moles of complexes of interest are discussed. We report the detection of residues in blood of medications of the order of 10 -8 and 10 -9 molar (M), which opens the way for drug monitoring with a focus on the implementation of a personalized medicine. We discuss results of therapy techniques with the use of nanomaterials that have allowed us to reduce cell viability below 10%. These results show that nanotechnology is changing the health paradigm to preventive medicine, personalized and available to everyone. RESUMEN:En este trabajo se discuten las propiedades ópticas y electrónicas de nanomateriales, se analizan sus características fundamentales y su aplicación en el diseño de dispositivos y técnicas para la detección, imagen y terapia, especialmente en problemas de cáncer. Se discuten algunos resultados recientes obtenidos en nuestro laboratorio donde hemos podido medir concentraciones del orden de 10 -22 moles de complejos de interés. Reportamos la detección de residuos en sangre de medicamentos del orden de 10 -8 y 10 -9 molar (M), lo que abre el camino para el monitoreo de fármacos con un enfoque a la implementación de una medicina persona-dewww.mundonano.unam.mx | Mundo Nano http://dx.doi.org/10.22201/ceiich.24485691e.2020.24.69618 | 13(24), 1e-24e, enero-junio 2020 Algunas aplicaciones de la nanofotónica en la biomedicina ◊ Some applications of nanophotonics in biomedicine 2eMundo Nano | artículos de investigación | www.mundonano.unam.mx 13(24), 1e-24e, enero-junio 2020 | http://dx.

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Quantum-sized nanomaterials for solar cell applications

Cited by 88 publications

References 241 publications

Tuning the Crystal Phase and Morphology of the Photoluminescent Indium Sulphide Nanocrystals and Their Adsorption‐Based Catalytic and Photocatalytic Applications

Tuning the Crystal Phase and Morphology of the Photoluminescent Indium Sulphide Nanocrystals and Their Adsorption‐Based Catalytic and Photocatalytic Applications

Effect of the shell material and confinement type on the conversion efficiency of core/shell quantum dot nanocrystal solar cells

Algunas aplicaciones de la nanofotónica en la biomedicina

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