Enhanced photocurrent by the co-sensitization of ZnO with dye and CuInSe nanocrystals

Zhao, Jinjin; Wang, Peng; Liu, Wei; Liu, Zhenghao; Zhang, Jie; Si, Huayan; Mai, Yaohua; Fang, Xue-Qian; Liu, Xianglin; Ren, Deliang

doi:10.1039/c5dt01739d

Cited by 7 publications

(3 citation statements)

References 65 publications

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“…It was noted that the CIGS QDs expanded the spectral range for light absorption of the dyes in this structure with a sensitizer bilayer. The same group fabricated hybrid devices, by the cosensitization of ZnO with N719 dye and CISe NCs, and reached PCEs of 6.66% . Mousavi-Kamazani et al also used CIS QDs in combination with a natural dye in QD-DSSCs and reached a PCE of 0.78% …”

Section: Photovoltaic Applicationsmentioning

confidence: 99%

Compound Copper Chalcogenide Nanocrystals

et al. 2017

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This review captures the synthesis, assembly, properties, and applications of copper chalcogenide NCs, which have achieved significant research interest in the last decade due to their compositional and structural versatility. The outstanding functional properties of these materials stems from the relationship between their band structure and defect concentration, including charge carrier concentration and electronic conductivity character, which consequently affects their optoelectronic, optical, and plasmonic properties. This, combined with several metastable crystal phases and stoichiometries and the low energy of formation of defects, makes the reproducible synthesis of these materials, with tunable parameters, remarkable. Further to this, the review captures the progress of the hierarchical assembly of these NCs, which bridges the link between their discrete and collective properties. Their ubiquitous application set has cross-cut energy conversion (photovoltaics, photocatalysis, thermoelectrics), energy storage (lithium-ion batteries, hydrogen generation), emissive materials (plasmonics, LEDs, biolabelling), sensors (electrochemical, biochemical), biomedical devices (magnetic resonance imaging, X-ray computer tomography), and medical therapies (photochemothermal therapies, immunotherapy, radiotherapy, and drug delivery). The confluence of advances in the synthesis, assembly, and application of these NCs in the past decade has the potential to significantly impact society, both economically and environmentally.

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Section: Photovoltaic Applicationsmentioning

confidence: 99%

Compound Copper Chalcogenide Nanocrystals

et al. 2017

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“…Co-sensitization of semiconductor QDs and organic dyes has also been investigated as an effective strategy for enrichment [54,55,63,64]. The J-V curves in Fig.…”

Section: Resultsmentioning

confidence: 99%

Enhanced performance of solar cells via anchoring CuGaS2 quantum dots

et al. 2017

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Ternary I-III-VI quantum dots (QDs) of chalcopyrite semiconductors exhibit excellent optical properties in solar cells. In this study, ternary chalcopyrite CuGaS 2 nanocrystals (2-5 nm) were one-pot anchored on TiO 2 nanoparticles (TiO 2 @CGS) without any long ligand. The solar cell with TiO 2 @CuGaS 2 /N719 has a power conversion efficiency of 7.4%, which is 23% higher than that of monosensitized dye solar cell. Anchoring CuGaS 2 QDs on semiconductor nanoparticles to form QDs/dye co-sensitized solar cells is a promising and feasible approach to enhance light absorption, charge carrier generation as well as to facilitate electron injection comparing to conventional mono-dye sensitized solar cells.

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“…Heretofore, many strategies have been devoted to increasing the photocurrent density of solar conversion devices such as using broadband sensitizers, 2,3,[16][17][18][19] controlling the massive charge recombination, 17 employing a highly effective counter electrode for the regeneration of sensitizers and so on. 20 In addition, taking advantage of the unique LSPR of metal particles to enhance light harvesting of the devices has been proven as an effective strategy.…”

Section: Introductionmentioning

confidence: 99%

Plasmon resonance energy transfer and hot electron injection induced high photocurrent density in liquid junction Ag@Ag₂S sensitized solar cells

Wang

et al. 2016

Dalton Trans.

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An in situ technique was developed to deposit Ag@AgS core-shell quantum dots on a SnO mesoporous film for solar energy conversion. When adopted as a photoanode, an impressive high photocurrent density of ∼25.6 mA cm was demonstrated in a cell configuration using polysulfide S/S as an electrolyte and CuS/brass as a counter electrode, which leads to a power conversion efficiency of ∼0.784% for this environmentally benign device. Optical measurements showed that Ag nanoparticles could be employed as plasmon resonance centers to enhance the harvesting efficiency of incident light at the visible and near-infrared range. Moreover, photoluminescence spectra demonstrated fast charge transfer at Ag@AgS/SnO interfaces, which facilitates direct hot electron injection from sensitizers to the SnO matrix and finally gives rise to the high photocurrent density.

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Enhanced photocurrent by the co-sensitization of ZnO with dye and CuInSe nanocrystals

Cited by 7 publications

References 65 publications

Compound Copper Chalcogenide Nanocrystals

Compound Copper Chalcogenide Nanocrystals

Enhanced performance of solar cells via anchoring CuGaS2 quantum dots

Plasmon resonance energy transfer and hot electron injection induced high photocurrent density in liquid junction Ag@Ag₂S sensitized solar cells

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Enhanced photocurrent by the co-sensitization of ZnO with dye and CuInSe nanocrystals

Cited by 7 publications

References 65 publications

Compound Copper Chalcogenide Nanocrystals

Compound Copper Chalcogenide Nanocrystals

Enhanced performance of solar cells via anchoring CuGaS2 quantum dots

Plasmon resonance energy transfer and hot electron injection induced high photocurrent density in liquid junction Ag@Ag2S sensitized solar cells

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Plasmon resonance energy transfer and hot electron injection induced high photocurrent density in liquid junction Ag@Ag₂S sensitized solar cells