Colloidal quantum dots in solar cells

Nikolenko, L. M.; Разумов, В. Ф.

doi:10.1070/rc2013v082n05abeh004337

Cited by 38 publications

(17 citation statements)

References 181 publications

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“…Colloidal QDs feature unique optical and electronic properties and can be used in liquid-phase technologies for the fabrication of solar cells, including printed and roll-to-roll ones. In the review by Nikolaenko and Razumov [3], the possibilities of using QDs in the structure of photoconverters based on a Schottky contact, a semiconductor-semiconductor heterojunction, and a bulk heterojunction kconjugate polymerl/QD are outlined. In addition to semiconductor nanoparticles, in photovoltaics, in relation to the known observation that the efficiency of solar cells increases with the use of metallic nanoparticles (MNPs) [4], it is also of interest to produce particles in which the effect of the collective excitation of conduction electrons by an electromagnetic wave, i.e., a localized plasmonic resonance (LPR), manifests itself [5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of metal and semiconductor nanoparticles in a flow of immiscible liquids

et al. 2016

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Nanoparticles of silver and cadmium selenide are obtained by the method of synthesis in a flow of immiscible liquids (water/toluene, water/dodecane); these nanoparticles manifest, respectively, the effects of plasmon resonance and the spatial confinement of charge carriers. The reactor used is a polytetrafluoroethylene capillary with temperature-controlled sections for particle nucleation and growth with the supply of precursors using micropumps. The diameters of the particles are determined from absorbance spectra and are found to be 40 nm for Ag nanoparticles and 1-2 nm for CdSe nanoparticles (depending on the growth duration).

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Section: Introductionmentioning

confidence: 99%

Synthesis of metal and semiconductor nanoparticles in a flow of immiscible liquids

et al. 2016

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“…The most widespread chemical methods for applying coatings of quantum dots are growing nanoparticles directly on a surface via chemical deposition (Chemical Bath Deposition, or CBD) and chemical coating via the layered adsorption of ions (Successive Ionic layer Adsorption and Reaction, or Silar) [8]. In the latter, the powder or substrate are placed in a solution of one of the reactants and then washed and placed in a solution with a second reagent.…”

Section: Introductionmentioning

confidence: 99%

“…When transplanting quantum dots into different (flat, spherical, porous) surfaces of metals [2], oxides [3] and carbon nanotubes [4], structures with new properties, are formed that can be used in a variety of high-tech applications. These include photovoltaic converters of solar energy [5], light-emitting elements [6], improved luminescence in sensor devices [7], and many others.The most widespread chemical methods for applying coatings of quantum dots are growing nanoparticles directly on a surface via chemical deposition (Chemical Bath Deposition, or CBD) and chemical coating via the layered adsorption of ions (Successive Ionic layer Adsorption and Reaction, or Silar) [8]. In the latter, the powder or substrate are placed in a solution of one of the reactants and then washed and placed in a solution with a second reagent.…”

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confidence: 99%

Obtaining electrostatically bound CdS-SiO2 aggregates from electrophoretic concentrates of CdS nanoparticles

Булавченко

Sap’yanik

Демидова

et al. 2015

Russ. J. Phys. Chem.

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Nonaqueous electrophoresis reveals that the electrokinetic potential of CdS nanoparticles increases slightly (85-120 mV) along with the concentration (0-5 × 10 -3 M) of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) in n-decane, while negatively charged SiO 2 particles acquire positive charge (switching from -75 up to +135 mV). The energies of interparticle interactions in CdS-CdS and CdS-SiO 2 systems are calculated from these parameters and the literature values of the Hamaker constants according to the Deryaguin-Landau-Verwey-Overbeek (DLVO) theory. It is concluded that the presence of a minimum (2.5 k B T) on the potential dependences of the CdS-SiO 2 system indicates the formation of CdS-SiO 2 aggregates electrostatically bound by heterocoagulation at low concentrations of AOT. The luminescent properties of the obtained ultrafine CdS-SiO 2 powders depend on the CdS content. INTRODUCTIONNanoparticles of metal chalcogenides (quantum dots) are of interest in many areas of nanochemistry [1]. When transplanting quantum dots into different (flat, spherical, porous) surfaces of metals [2], oxides [3] and carbon nanotubes [4], structures with new properties, are formed that can be used in a variety of high-tech applications. These include photovoltaic converters of solar energy [5], light-emitting elements [6], improved luminescence in sensor devices [7], and many others.The most widespread chemical methods for applying coatings of quantum dots are growing nanoparticles directly on a surface via chemical deposition (Chemical Bath Deposition, or CBD) and chemical coating via the layered adsorption of ions (Successive Ionic layer Adsorption and Reaction, or Silar) [8]. In the latter, the powder or substrate are placed in a solution of one of the reactants and then washed and placed in a solution with a second reagent. A serious drawback of this technique is the formation of a huge number of nanoparticle agglomerates that can degrade the useful properties of the obtained structural compositions. In photovoltaics for example, the recombination of electron-hole pairs occurs in agglomerates of the nanoparticles of CdS (CdSe) wide-bandgap semiconductors. This reduces the photocurrent in photo-

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“…Special attention was paid to design of novel materials for photography [51,52], exploration of colloidal systems including gold nanoparticles and quantum dots based on inorganic semiconductors such as CdS, CdSe and PbS [53,54]. Nanostructured systems based on inorganic semiconductors have being investigated as promising materials for solar cells [55][56][57]. Several families of transition metal complexes, aromatic polyamines and polymers were designed as promising materials for organic light-emitting diodes (OLEDs) [58][59][60][61].…”

Section: Introductionmentioning

confidence: 99%

Research in the Field of Organic Photovoltaics at the Institute for Problems of Chemical Physics of Russian Academy of Sciences

Troshin

2015

Organic Photonics and Photovoltaics

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In the present review we highlight the main research activities in the field of organic photonics and photovoltaics at the Institute for Problems of Chemical Physics of Russian Academy of Sciences (IPCP RAS). Extensive investigation of optical and electrical properties of π-conjugated organic compounds performed at IPCP RAS since 1960's resulted in design of many exciting materials representing organic semiconductors, metals and superconductors. Organic Schottky barrier and p/n junction photovoltaic devices constructed at IPCP RAS in 1960's and 1970's were among the first examples of reasonably efficient organic solar cells at that time. These early discoveries inspired younger generations of the researchers to continue the work of their mentors and explore the world of organic materials and photonic devices such as molecular photonic switches, organic light emitting diodes, solar cells, photodetectors, photoswitchable organic field-effect transistors and memory elements.

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Colloidal quantum dots in solar cells

Cited by 38 publications

References 181 publications

Synthesis of metal and semiconductor nanoparticles in a flow of immiscible liquids

Synthesis of metal and semiconductor nanoparticles in a flow of immiscible liquids

Obtaining electrostatically bound CdS-SiO2 aggregates from electrophoretic concentrates of CdS nanoparticles

Research in the Field of Organic Photovoltaics at the Institute for Problems of Chemical Physics of Russian Academy of Sciences

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