Inside Back Cover: Lead-Sulfide-Selenide Quantum Dots and Gold-Copper Alloy Nanoparticles Augment the Light-Harvesting Ability of Solar Cells (ChemPhysChem 7/2017)

ChemPhysChem ◽  
2017 ◽  
Vol 18 (7) ◽  
pp. 863-863
Author(s):  
Aparajita Das ◽  
Melepurath Deepa ◽  
Partha Ghosal
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Lead Sulfide ◽  
Copper Alloy ◽  
Light Harvesting ◽  
Alloy Nanoparticles ◽  
Back Cover

scholarly journals Ligand dependent oxidation dictates the performance evolution of high efficiency PbS quantum dot solar cells

2020 ◽  
Vol 4 (1) ◽  
pp. 108-115 ◽  
Author(s):  
David Becker-Koch ◽  
Miguel Albaladejo-Siguan ◽  
Vincent Lami ◽  
Fabian Paulus ◽  
Hengyang Xiang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Lead Sulfide ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Continuous Illumination ◽  
Quantum Dot Solar Cells ◽  
The Stability ◽  
Pbs Quantum Dots ◽  
Pbs Quantum Dot

The stability of lead sulfide (PbS) quantum dots (QD) under continuous illumination in oxygenated environments depends on the choice of ligands, determining the evolution of photovoltaic performance of high efficiency PbS QD solar cells.

scholarly journals PMMA Thin Film with Embedded Carbon Quantum Dots for Post-Fabrication Improvement of Light Harvesting in Perovskite Solar Cells

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 291 ◽  
Author(s):  
Askar A. Maxim ◽  
Shynggys N. Sadyk ◽  
Damir Aidarkhanov ◽  
Charles Surya ◽  
Annie Ng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Fill Factor ◽  
Light Harvesting ◽  
Incident Light ◽  
Perovskite Solar Cells ◽  
Carbon Quantum Dots ◽  
Active Layers ◽  
Before And After ◽  
Down Conversion

Perovskite solar cells (PSCs) with a standard sandwich structure suffer from optical transmission losses due to the substrate and its active layers. Developing strategies for compensating for the losses in light harvesting is of significant importance to achieving a further enhancement in device efficiencies. In this work, the down-conversion effect of carbon quantum dots (CQDs) was employed to convert the UV fraction of the incident light into visible light. For this, thin films of poly(methyl methacrylate) with embedded carbon quantum dots (CQD@PMMA) were deposited on the illumination side of PSCs. Analysis of the device performances before and after application of CQD@PMMA photoactive functional film on PSCs revealed that the devices with the coating showed an improved photocurrent and fill factor, resulting in higher device efficiency.

Light harvesting enhancement upon incorporating alloy structured CdSeXTe1−X quantum dots in DPP:PC61BM bulk heterojunction solar cells

2017 ◽  
Vol 5 (3) ◽  
pp. 654-662 ◽  
Author(s):  
Rezvan Soltani ◽  
Ali Asghar Katbab ◽  
Kerstin Schaumberger ◽  
Nicola Gasparini ◽  
Christoph J. Brabec ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Light Harvesting ◽  
Bulk Heterojunction ◽  
Charge Generation ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

PCE is improved owing to the enhanced JSC, resulting from larger light harvesting and higher charge generation.

scholarly journals PREPARED QUANTUM DOTS SENSITIZED SOLAR CELLS BASED ON TiO2/CdS:Mn2+/CdSe PHOTOANODE

2018 ◽  
Vol 34 (3) ◽  
Author(s):  
Ha Thanh Tung
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Solar Cells ◽  
Doping Concentration ◽  
Light Harvesting ◽  
Sensitized Solar Cells

In this study, we have prepared and investigated the optical properties of the TiO2/CdS:Mn2+/CdSe photoanode as the function of Mn2+ doping concentration and thickness. The results show that the peaks of the UV-Vis spectra shifted toward longer wavelength while Mn2+ doping concentrations or thickness of the films were changed. The main cause of the red-shifting in UV-Vis spectra may come from the increasing of photoanode light-harvesting capacity. In addition, the results also demonstrated by the boosting performance of quantum dots sensitized solar cells from 2.07% for TiO2/CdS/CdSe photoanode to 2.5% for TiO2/CdS:Mn2+/CdSe photoanode.

scholarly journals Improving charge transport by the ultrathin QDs interlayer in polymer solar cells

RSC Advances ◽  
2018 ◽  
Vol 8 (32) ◽  
pp. 17914-17920 ◽  
Author(s):  
Zicha Li ◽  
Suling Zhao ◽  
Zheng Xu ◽  
Wageh Swelm ◽  
Dandan Song ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Charge Transport ◽  
Lead Sulfide ◽  
Polymer Solar Cells ◽  
Active Layers ◽  
Pbs Quantum Dots

Lead sulfide (PbS) quantum dots (QDs) have been incorporated into PTB7:PC71BM BHJ active layers to fabricate polymer solar cells (PSCs) and gather on the top surface of active layers to form an ultrathin interlayer.

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