scholarly journals Direct assembly of thioacid capped quantum dots in solid-state hybrid photovoltaics, effect of QDs size and thermal annealing

RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13543-13551 ◽  
Author(s):  
Manuel A. Triana ◽  
Oscar A. Jaramillo-Quintero ◽  
Rubén J. Camargo ◽  
Marina E. Rincón
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solid State ◽  
Thermal Annealing ◽  
Water Soluble ◽  
Bright Point ◽  
Cdse Qds ◽  
Direct Assembly ◽  
Hybrid Photovoltaics ◽  
Synthesis Yield

The effect of QD size and thermal annealing on water soluble QD solar cells is investigated. CdSe QDs corresponding to the bright-point during synthesis yield the best performance.

scholarly journals Synthesis of water-soluble and bio-taggable CdSe@ZnS quantum dots

RSC Advances ◽  
2018 ◽  
Vol 8 (16) ◽  
pp. 8516-8527 ◽  
Author(s):  
G. Ramalingam ◽  
K. Venkata Saravanan ◽  
T. Kayal Vizhi ◽  
M. Rajkumar ◽  
Kathirvelu Baskar
Keyword(s):  
Quantum Dots ◽  
Formation Mechanism ◽  
Water Soluble ◽  
Schematic Diagram ◽  
Cdse Qds

Mystristic capped CdSe QDs with schematic diagram and formation mechanism of bio-taggable CdSe@ZnS QDs.

scholarly journals CdSe Quantum Dots Sensitized Mesoporous TiO2Solar Cells with CuSCN as Solid-State Electrolyte

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Guanbi Chen ◽  
Lei Wang ◽  
Yu Zou ◽  
Xia Sheng ◽  
Hongjuan Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solid State ◽  
Barrier Layer ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Cdse Quantum Dots ◽  
Solid State Electrolyte ◽  
Capping Agents ◽  
Organic Capping

Mesoporous TiO2is functionalized by 3-mercaptopropyl trimethyoxysilane (MPTMS) to anchor CdSe quantum dots (QDs). The resulting TiO2/CdSe is combined with solid-state electrolyte (CuSCN) to form solar cells. It is found that the efficiency of electron injection from QDs to TiO2can be improved owing to the substitution of the long chains of organic capping agents at the surface of QDs with MPTMS. The hydrolyzate of MPTMS forms an insulating barrier layer to reduce the recombination at the TiO2/CdSe interface, leading to the increase of open-circuit voltage (Voc).

Highly Efficient Solid-State Solar Cells Based on Composite CdS-ZnS Quantum Dots

2015 ◽  
Vol 162 (10) ◽  
pp. H747-H752 ◽  
Author(s):  
Wei Hu ◽  
Tao Liu ◽  
Ying Guo ◽  
Songping Luo ◽  
Heping Shen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solid State ◽  
Highly Efficient

scholarly journals Water-soluble ZnSe/ZnS:Mn/ZnS quantum dots convert UV to visible light for improved Si solar cell efficiency

2021 ◽  
Author(s):  
Hisaaki Nishimura ◽  
Takaya Maekawa ◽  
Kazushi Enomoto ◽  
Naoteru Shigekawa ◽  
Tomomi Takagi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solar Cell ◽  
Visible Light ◽  
Solar Spectrum ◽  
Water Soluble ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Si Solar Cell ◽  
Si Solar Cells

The sensitivity of Si solar cells to the UV portion of the solar spectrum is low, and must be increased to further improve their efficiencies.

Enhanced performance of all solid-state quantum dot-sensitized solar cells via synchronous deposition of PbS and CdS quantum dots

2020 ◽  
Vol 44 (2) ◽  
pp. 505-512 ◽  
Author(s):  
Xiaoli Mao ◽  
Jianguo Yu ◽  
Jun Xu ◽  
Juntian Zhou ◽  
Cheng Luo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solid State ◽  
Quantum Dot ◽  
Band Structure ◽  
Surface Recombination ◽  
Cds Quantum Dots ◽  
Sensitized Solar Cells

The synchronous deposition of PbS and CdS affords band-structure tailoring and surface recombination passivation for efficient and stable solid-state QDSCs.

P3HT as hole transport material and assistant light absorber in CdS quantum dots-sensitized solid-state solar cells

2011 ◽  
Vol 47 (22) ◽  
pp. 6461 ◽  
Author(s):  
Jin Qian ◽  
Qi-Sheng Liu ◽  
Gang Li ◽  
Ke-Jian Jiang ◽  
Lian-Ming Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solid State ◽  
Hole Transport ◽  
Cds Quantum Dots ◽  
Light Absorber

Optimized Synthesis of Water-Soluble and Small-Size CdSe Quantum Dots

2011 ◽  
Vol 266 ◽  
pp. 46-50
Author(s):  
Jiao Yun Xia ◽  
Jun Long Tang
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Water Soluble ◽  
Cdse Quantum Dots ◽  
Key Factors ◽  
Cdse Qds ◽  
High Quality ◽  
Synthesis Route ◽  
Initial Ph

An optimized synthesis route was applied for controlling the preparation of CdSe quantum dots (QDs) in an aqueous solution. Some key factors which influencing the properties of CdSe QDs, such as initial pH, ratio of precursor etc, were investigated. The as-prepared products have been characterized by TEM, XPS, XRD, UV-Vis and fluorescence (FL) spectra. The result showed that the high-quality CdSe QDs with 3 nm was obtained. The experiments also conformed that the CdSe QDs with better FL properties were obtained with properly initial pH, 5, suitably [Cd2+] / [SeSO3 2-], range from 1:0.25 to 1:0.75 and the ratio of [Cd2+] / [TGA] is 1:2~1:3.

Quantum-Dot-Sensitized Solar Cells with Water-Soluble and Air-Stable PbS Quantum Dots

2014 ◽  
Vol 118 (10) ◽  
pp. 5142-5149 ◽  
Author(s):  
Askhat N. Jumabekov ◽  
Felix Deschler ◽  
Daniel Böhm ◽  
Laurence M. Peter ◽  
Jochen Feldmann ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Water Soluble ◽  
Sensitized Solar Cells ◽  
Pbs Quantum Dots

Enhanced photovoltaic performance with co-sensitization of quantum dots and an organic dye in dye-sensitized solar cells

2014 ◽  
Vol 2 (43) ◽  
pp. 18375-18382 ◽  
Author(s):  
Camilla Lelii ◽  
Moungi G. Bawendi ◽  
Paolo Biagini ◽  
Po-Yen Chen ◽  
Marcello Crucianelli ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Cdse Qds ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

CdSe QDs of two different sizes have been combined with organic and organometallic sensitizers. The enhancement of the efficiency in QDDSSCs depends on the size of the QD and on the nature of the dye.

Synthesis of High-Performance Aqueous CdSe Quantum Dots Based on Combination of Se Source as Vapor-Phase and Hydrothermal Method

2010 ◽  
Vol 663-665 ◽  
pp. 96-99
Author(s):  
Heng Kang Qiu ◽  
Yue Shen ◽  
Lin Jun Wang ◽  
Jian Cheng Zhang ◽  
Kai Feng Qin
Keyword(s):  
Quantum Dots ◽  
Hydrothermal Method ◽  
Vapor Phase ◽  
High Performance ◽  
Hydrothermal Reaction ◽  
Water Soluble ◽  
Quantum Yields ◽  
Cdse Quantum Dots ◽  
Cdse Qds ◽  
Visible Absorption

High performance aqueous CdSe quantum dots (QDs) have been prepared by combination of Se source as vapor-phase and hydrothermal method. The main advantages of this approach included: one is to utilize H2Se vapor as a higher pure selenium source to make the prepared QDs have little other impurities, another is to obtain the QDs with characteristics of more rapid growth in the hydrothermal reaction. The as-prepared products have been characterized by ultraviolet-visible absorption spectra, photoluminescence spectroscopy (PL), X-ray powder diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED) and energy dispersive spectroscopy (EDS) analysis etc. The results show the as-synthesized water-soluble CdSe nanoparticles possess higher purity and quantum yields (QY), favorable narrow photoluminescence band with full width of half-maximum (FWHM) down to 40 nm, better photo-stability, and less synthetic time as compared with aqueous CdSe QDs obtained by other methods.

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