Light-emitting diodes based on quaternary CdZnSeS quantum dots

Sánchez-Solís, Ana; Esparza, Diego; Orona-Navar, A.; Torres–Castro, Alejandro; Rivas, Jesús Manuel; Ornelas‐Soto, Nancy; López–Luke, Tzarara

doi:10.1016/j.jlumin.2021.118025

Cited by 2 publications

(5 citation statements)

References 51 publications

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“…In the last two decades, high demand has arisen for alloyed quantum dots for potential technological and biological applications like light-emitting diodes [13,67], solar cells, and biolabeling [12,55], which makes it essential to achieve a better understanding of the structural and optical properties of these types of nanostructures to determine their ability for various applications.…”

Section: Propertiesmentioning

confidence: 99%

“…Time of reaction [13,33] is another factor, as shown in Figure 9; even the ability of the nanomaterial to dissolve in water (hydrophilicity and hydrophobicity) [25] can contribute to optical properties. According to all previous researchers, it is very clear that both ternary and quaternary alloyed quantum dots have size/composition-dependent properties, which are illustrated in Figure 10.…”

Section: Optical Propertiesmentioning

confidence: 99%

“…The general device structure starts with a glass substrate coated with indium tin oxide (ITO), followed by a layer that works as a hole injector and, above it, another layer to transport the holes. Then, the quantum dots were applied to this configuration to emit light when exposed to an electric current, which is followed by a layer for the electron injection from the cathode, as shown in Figure 18 [13,36].…”

Section: Solar Cellsmentioning

confidence: 99%

“…In the recent past, QDs have attracted attention for a wide range of technological applications such as solar cells [10][11][12], light-emitting diodes (LEDs) [13], and displays [14], in addition to various biological applications [15]. This is due to their unique electrical and optical properties, which can be tuned with size control [5], like the wide absorption and sharp emission bands [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Cadmium-Based Quantum Dots Alloyed Structures: Synthesis, Properties, and Applications

Ebrahim,

Al-Hartomy,

Wageh

2023

Materials

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Cadmium-based alloyed quantum dots are one of the most popular metal chalcogenides in both the industrial and research fields owing to their extraordinary optical and electronic properties that can be manipulated by varying the compositional ratio in addition to size control. This report aims to cover the main information concerning the synthesis techniques, properties, and applications of Cd-based alloyed quantum dots. It provides a comprehensive overview of the most common synthesis methods for these QDs, which include hot injection, co-precipitation, successive ionic layer adsorption and reaction, hydrothermal, and microwave-assisted synthesis methods. This detailed literature highlights the optical and structural properties of both ternary and quaternary quantum dots. Also, this review provides the high-potential applications of various alloyed quantum dots.

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Section: Propertiesmentioning

confidence: 99%

Section: Optical Propertiesmentioning

confidence: 99%

Section: Solar Cellsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cadmium-Based Quantum Dots Alloyed Structures: Synthesis, Properties, and Applications

Ebrahim,

Al-Hartomy,

Wageh

2023

Materials

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“…Popular QDs contain a semiconductor core which typically consists of CdSe, CdTe, CdS and are often encapsulated in an outer shell (e.g., ZnS) [1][2][3][4]. Due to the unique size and shape dependent perfect optoelectronic properties, QDs are developed for a variety of application in biomedical imaging, drug delivery, solar cells, light emitting diodes as well as embedded in different display devices [5][6][7][8][9]. Nevertheless, QDs accumulated as well as released in various application will inevitably enter the bloodstream of living organisms at some point, thus causing the unintended harmful effects.…”

Section: Introductionmentioning

confidence: 99%

A novel insight into mechanism of derangement of coagulation balance: interactions of quantum dots with coagulation-related proteins

Zhang

Luo

et al. 2022

Part Fibre Toxicol

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Background Quantum dots (QDs) have gained increased attention for their extensive biomedical and electronic products applications. Due to the high priority of QDs in contacting the circulatory system, understanding the hemocompatibility of QDs is one of the most important aspects for their biosafety evaluation. Thus far, the effect of QDs on coagulation balance haven’t been fully understood, and limited studies also have yet elucidated the potential mechanism from the perspective of interaction of QDs with coagulation-related proteins. Results QDs induced the derangement of coagulation balance by prolonging the activated partial thromboplastin time and prothrombin time as well as changing the expression levels of coagulation and fibrinolytic factors. The contact of QDs with PTM (prothrombin), PLG (plasminogen) and FIB (fibrinogen) which are primary coagulation-related proteins in the coagulation and fibrinolysis systems formed QDs-protein conjugates through hydrogen-bonding and hydrophobic interaction. The affinity of proteins with QDs followed the order of PTM > PLG > FIB, and was larger with CdTe/ZnS QDs than CdTe QDs. Binding with QDs not only induced static fluorescence quenching of PTM, PLG and FIB, but also altered their conformational structures. The binding of QDs to the active sites of PTM, PLG and FIB may promote the activation of proteins, thus interfering the hemostasis and fibrinolysis processes. Conclusions The interactions of QDs with PTM, PLG and FIB may be key contributors for interference of coagulation balance, that is helpful to achieve a reliable and comprehensive evaluation on the potential biological influence of QDs from the molecular level.

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Light-emitting diodes based on quaternary CdZnSeS quantum dots

Cited by 2 publications

References 51 publications

Cadmium-Based Quantum Dots Alloyed Structures: Synthesis, Properties, and Applications

Cadmium-Based Quantum Dots Alloyed Structures: Synthesis, Properties, and Applications

A novel insight into mechanism of derangement of coagulation balance: interactions of quantum dots with coagulation-related proteins

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