4.4 Article

Preparation and Research of Perovskite Quantum Dots Powder Based on RbCl Doped CsPbBr3

Related references

Note: Only part of the references are listed.
Article Optics

Ultra-Bright and Stable Pure Blue Light-Emitting Diode from O, N Co-Doped Carbon Dots

Xiao Wang et al.

Summary: This study presents a method to prepare pure blue LEDs using O, N co-doped carbon dots, demonstrating excellent performance in terms of color purity, high external quantum efficiency, brightness, and current efficiency.

LASER & PHOTONICS REVIEWS (2021)

Article Optics

Polarization improvement of CsPbClBr2 quantum dot film by laser direct writing technology

Teng Ma et al.

Summary: In this study, laser direct writing technology was developed to improve the emitted light polarization of CsPbClBr2 quantum dot film. The polarization degree was increased by about 56% without using an additional polarizer. The fluorescence lifetime was also greatly improved after laser treatment, providing the possibility for the production of a new generation of displays.

OPTICS LETTERS (2021)

Article Multidisciplinary Sciences

Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice

G. W. K. Moore et al.

Summary: Ice arches at the northern and southern ends of Nares Strait, a key passage in the Arctic, are forming for shorter durations, leading to increased ice transport and accelerating the export of multi-year ice.

NATURE COMMUNICATIONS (2021)

Article Chemistry, Physical

Two-dimensional quantum dots for highly efficient heterojunction solar cells

Hazem Abdelsalam et al.

Summary: The electronic and optical properties of finite silicene, graphene, and arsenene heterostructures were investigated to construct efficient heterojunction solar cells with high power conversion efficiency. The heterojunctions achieved only Van der Waals interactions between layers, ensuring charge separation and high efficiency. Functionalized 2D heterojunctions are excellent candidates for building ultrathin, stable, and low-cost efficient solar cells.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

Article Chemistry, Physical

Perovskite Quantum Dots Glasses Based Backlit Displays

Jidong Lin et al.

Summary: This research introduces a method using perovskite quantum dots to produce nanocomposites in glass with superior optical performance and stability, which can be used to improve the color gamut and rendition of LCD. By physically diluting to eliminate the inner filter effect and effectively isolating them from the external environment, the quantum yield and stability of the quantum dots have been significantly enhanced. The backlit LCD designed using this technology showed a color gamut reaching 152% of commercial LCD and 103% of NTSC, showcasing great potential in the optoelectronic industry.

ACS ENERGY LETTERS (2021)

Article Chemistry, Multidisciplinary

Efficient Low-Grade Heat Harvesting Enabled by Tuning the Hydration Entropy in an Electrochemical System

Caitian Gao et al.

Summary: The study investigates the temperature coefficient alpha in a low-grade heat harvesting system TREC by tuning the hydration entropy of the electrochemical reaction. A larger alpha value of -1.004 mV K-1 is found in the Rb+ system, enhancing the efficiency of the system. Constructing a full cell for low-grade heat harvesting, the system achieves a high thermal efficiency of 6.21% with 50% heat recuperation considered.

ADVANCED MATERIALS (2021)

Article Chemistry, Physical

Dark Self-Healing-Mediated Negative Photoconductivity of a Lead-Free Cs3Bi2Cl9 Perovskite Single Crystal

Naveen Kumar Tailor et al.

Summary: Lead-free Cs3Bi2Cl9 perovskite exhibits light-induced negative photoconductivity with slow recovery, attributed to the formation of light-activated metastable trap states within the crystal. Studies using femtosecond transient reflectance spectroscopy reveal the unique electronic transport properties of Cs3Bi2Cl9 single crystals, which show retroactive photocurrent upon irradiation. The figure of merits for Cs3Bi2Cl9 single-crystal detectors, including responsivity, detectivity, and current ratio, demonstrate the potential of this material for device applications.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2021)

Article Materials Science, Multidisciplinary

Three-dimensional self-attaching perovskite quantum dots/polymer platform for efficient solar-driven CO2 reduction

R. Cheng et al.

Summary: By developing a 3D bandgap tunable perovskite quantum dots/polyethersulfone monolithic film, we have achieved efficient photocatalytic reactions and fully exploited the perovskite nanomaterials.

MATERIALS TODAY PHYSICS (2021)

Review Materials Science, Multidisciplinary

Review of performance improvement strategies for doped graphene quantum dots for fluorescence-based sensing

Bingyang Li et al.

Summary: This paper reviews strategies for improving the performance of graphene quantum dots (GQDs) by doping them with other atoms, discussing the characterization, optical properties, fluorescence sensing mechanisms, future development directions, and the importance of increasing quantum yield. The discussion on doping strategies for GQDs here will promote their development as high-yield, sensitive, selective, and tunable fluorescence sensors.

SYNTHETIC METALS (2021)

Article Chemistry, Multidisciplinary

First-principles study of the electronic structures and optical and photocatalytic performances of van der Waals heterostructures of SiS, P and SiC monolayers

Qaisar Alam et al.

Summary: By using (hybrid) first-principles calculations, the stability and semiconductor properties of SiS, P, and SiC van der Waals (vdW) heterostructures have been investigated. These structures exhibit high stability, indirect type-II bandgap semiconducting behavior, and promising potential for applications in optical absorption behavior.

RSC ADVANCES (2021)

Article Chemistry, Multidisciplinary

Lead-free Mn-doped antimony halide perovskite quantum dots with bright deep-red emission

Aifei Wang et al.

Summary: The study presents the first synthesis of Mn2+ doped Cs3Sb2Clx/Br9-x (0 <= x <= 9) perovskite quantum dots, which exhibit bright photoluminescence emission at 660 nm and a high quantum yield of approximately 49%, showcasing their potential for optical applications.

CHEMICAL COMMUNICATIONS (2021)

Article Materials Science, Multidisciplinary

Heterogeneous post-passivation of inorganic cesium lead halide perovskite quantum dots for efficient electroluminescent devices

Xuefei Li et al.

Summary: A heterogeneous post-passivation process using formamidinium bromide (FABr) has shown more favorable electrical behavior for inorganic cesium lead halide perovskite quantum dots compared to a homogeneous post-passivation process using didodecyldimethylammonium bromide (DDAB). The FABr-treated quantum dots LEDs achieved a promising external quantum efficiency and luminance, significantly higher than the pristine and DDAB-treated samples. This methodology can also be applied to surface defect passivation of other types of perovskite quantum dots, enhancing both photoluminescence and electroluminescence performance simultaneously.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

Review Materials Science, Multidisciplinary

Infrared colloidal quantum dots for photoelectric conversion devices

Wei Gong et al.

Summary: This review discusses methods for improving the performance of CQD-based optoelectronic devices, focusing on optimizing device structures, surface passivation methods, and interface modifications. It also reviews recent advancements in CQD photodetectors in the near-infrared, short-wave infrared, and mid-wave infrared spectra, and the development of innovative device architectures to overcome limitations of traditional photodetectors. Finally, the application of CQD photodetectors in infrared imaging is also discussed.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

Article Chemistry, Physical

Armor-like passivated CsPbBr3 quantum dots: boosted stability with hand-in-hand ligands and enhanced performance of nuclear batteries

Dandan Yang et al.

Summary: An armor-like passivation strategy was proposed to improve the comprehensive stability of inorganic perovskite quantum dots (PQDs) by introducing coupling ligands with strong affinity for every single surface point. This strategy resulted in long-term storage stability, high quantum yield, good water resistance, and good radiation hardness of PQDs, showing potential for enhanced performance in light-emitting and photovoltaic devices.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Chemistry, Multidisciplinary

A polymer-coated template-confinement CsPbBr3 perovskite quantum dot composite

Jianhua Shen et al.

Summary: The study successfully synthesized polymer-coated CsPbBr3 quantum dots grown in situ on a template, using conjugated linoleic acid (CLA) as a ligand to passivate surface defects of QDs. Mesoporous silica microspheres were used as templates to improve the stability and absolute photoluminescence quantum yield of the quantum dots.

NANOSCALE (2021)

Article Chemistry, Multidisciplinary

Perovskite and quantum dot tandem solar cells with interlayer modification for improved optical semitransparency and stability†

Aneta Andruszkiewicz et al.

Summary: This study improved the infrared transparency of the perovskite sub-cell and increased the utilization of infrared light by modifying the tandem interlayer. The introduction of different materials in the interlayer enhanced the IR transmittance to the back cell and improved optical stability, showing the importance of interlayer in achieving efficient next-generation tandem photovoltaics.

NANOSCALE (2021)

Article Chemistry, Physical

Pressure effects on the structures and electronic properties of halide perovskite CsPbX3 (X = I, Br, Cl)

Xinyu Wang et al.

Summary: Cesium lead halide perovskites have been investigated for their structure and electronic properties under hydrostatic pressure using particle swarm optimization and first principles methods. Different structure phases and phase transitions were observed for CsPbI3, with the largest piezochromic effect predicted at pressures below 10 GPa. The band gap was reduced under pressure, leading to CsPbI3 becoming a metal at pressures higher than 65 GPa. Similar phase sequences were found for CsPbBr3 and CsPbCl3 under pressure. These findings show the potential of using pressure to tune the band gap and expand the applications of halide perovskites in photovoltaics and optoelectronics.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021)

Article Chemistry, Multidisciplinary

High efficiency and stable photoluminescence of CH3NH3PbBr3@CsPbBr3 perovskite quantum dots

Yajing Wang et al.

Summary: By epitaxially growing a CsPbBr3 shell on the surface of CH3NH3PbBr3, CH3NH3PbBr3@CsPbBr3 quantum dots exhibit enhanced stability and strong photoluminescence, along with a high quantum yield.

CHEMICAL COMMUNICATIONS (2021)

Review Chemistry, Physical

Strategically integrating quantum dots into organic and perovskite solar cells

Ming Chen et al.

Summary: The paper reviews recent advances in strategically integrating various QDs and their associated performance enhancement of OSCs and PSCs, emphasizing the device configuration, integration location, and physical mechanism of different QDs types, and briefly outlining the basic structures and operation principles of OSCs and PSCs.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Chemistry, Physical

In Situ-Fabricated Perovskite Nanocrystals for Deep-Blue Light-Emitting Diodes

Wenjie Xu et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2020)

Article Chemistry, Physical

Incorporating quantum dots for high efficiency and stable perovskite photovoltaics

Yuetian Chen et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

Article Materials Science, Multidisciplinary

Enhancing the light-emitting performance and stability in CsPbBr3 perovskite quantum dots via simultaneous doping and surface passivation

Hengxiang Yang et al.

JOURNAL OF MATERIALS CHEMISTRY C (2020)

Article Materials Science, Multidisciplinary

Multiple Cations Enhanced Defect Passivation of Blue Perovskite Quantum Dots Enabling Efficient Light-Emitting Diodes

Jiangyong Pan et al.

ADVANCED OPTICAL MATERIALS (2020)

Article Materials Science, Multidisciplinary

Spectrally Tunable and Stable Electroluminescence Enabled by Rubidium Doping of CsPbBr3 Nanocrystals

Petar Todorovic et al.

ADVANCED OPTICAL MATERIALS (2019)

Article Nanoscience & Nanotechnology

Anion- and Cation-Codoped All-Inorganic Blue-Emitting Perovskite Quantum Dots for Light-Emitting Diodes

Mohammad Zirak et al.

ACS APPLIED NANO MATERIALS (2019)

Article Chemistry, Physical

Cs1-xRbxPbCl3 and Cs1-xRbxPbBr3 Solid Solutions: Understanding Octahedral Tilting in Lead Halide Perovskites

Matthew R. Linaburg et al.

CHEMISTRY OF MATERIALS (2017)