Article
Chemistry, Physical
Hanna Woznica, Mateusz Banski, Artur Podhorodecki
Summary: The study introduces a simple method for synthesizing nanoplatelets by controlling the concentration of zinc acetate to achieve different shapes of nanostructures. The proposed synthesis protocol is simple and highly repeatable. The research also identifies conditions for the growth of highly pure nanoplatelets.
Article
Engineering, Environmental
Kusum Sharma, Pankaj Raizada, Vasudha Hasija, Pardeep Singh, Archana Bajpai, Van-Huy Nguyen, S. Rangabhashiyam, Pawan Kumar, Ashok Kumar Nadda, Soo Young Kim, Rajender S. Varma, Thi Thanh Nhi Le, Quyet Van Le
Summary: Solar light-driven photocatalysis is an effective method for environmental remediation, utilizing zinc sulfide quantum dots with various advantages. Strategies such as doping and heterojunction formation have been explored to address the inherent deficiencies of ZnS QDs. Further research is needed to overcome unresolved challenges for the future development of ZnS QDs photocatalysts.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Physical
Xiaoyan Li, Chaojin Xuan, Boxu Yang, Weichen Wang, Mingzhong Wang, Xiaopeng Zhao
Summary: In this paper, center-doped monodisperse Cu-doped ZnSe (ZnSe:Cu) quantum dots are synthesized by co-nucleation doping method, and then a double-layered ZnS shell is grown on the QDs. The prepared ZnSe:Cu/ZnS/ZnS QDs exhibit high photoluminescence intensity and excellent stability in the blue region. The stability is attributed to the ZnS shell grown outside the ZnSe:Cu core, which effectively limits excitons and Cu and isolates O2. This work provides a new approach to enhance the stability of quantum dots.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Muhammad Haroon Rashid, Ants Koel, Toomas Rang, Nadeem Nasir, Nadeem Sabir, Faheem Ameen, Abher Rasheed
Summary: Quantum-dot-based core/shell structures have gained significance recently due to their optical, optoelectronic, and magnetic attributes. This study developed novel Cu-doped CdS/ZnS shell structures to enhance photoluminescence properties. Experimental results showed that Cu-doped ZnS shells adopted the crystal structure of CdS, minimizing lattice mismatch and offering better passivation, resulting in increased photoluminescence.
Article
Chemistry, Multidisciplinary
Meike Leu, Paul Campbell, Anja-Verena Mudring
Summary: Zinc sulfide (ZnS) and cadmium sulfide (CdS) nanoparticles were synthesized in different ionic liquids with microwave irradiation, yielding quantum dots of 1.5-3 nm in size. The choice of IL significantly affected the particle size, with choline-based ILs producing particularly small particles.
GREEN CHEMISTRY LETTERS AND REVIEWS
(2021)
Article
Polymer Science
Xin Zhang, Pengfei Jiao, Yihan Ma, Yuping Wei
Summary: A new fluorescence sensor based on molecular imprinted polymers was designed by combining them with water-soluble manganese-doped zinc sulfide quantum dots (Mn2+: ZnS QDs). The sensor, known as MIP@QDs, showed rapid and selective fluorescence sensing of sulfanilamide in water samples. The experimental results demonstrated that the MIP@QDs has high selectivity and sensitivity towards sulfanilamide detection, with a quick response time of 5 minutes and an imprinting factor of 14.8.
Article
Engineering, Electrical & Electronic
G. S. Sahoo, S. Routray, K. P. Pradhan, G. P. Mishra
Summary: Quantum engineering in kesterite solar cells has proposed a quantum-dot-embedded structure using CZTS(x)Se1-(x) and CZTS with different sulfur (S) and selenium (Se) content as dot and barrier. The incorporation of quantum dots and detailed investigation on optical and electrical performance show the uniqueness of this study, highlighting the effect of carrier quantization in the material.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Nanoscience & Nanotechnology
Gerardo Saavedra Rodriguez, Raul Sanchez-Zeferino, Christian Chapa, Mario Enrique Alvarez Ramos
Summary: In this study, the tunability of ZnS quantum dots embedded in a silica matrix from blue to cold white light emission was achieved through simple heating treatments without the need for rare earth or heavy metal ion doping. The composition of the samples changed gradually as a result of the heating, leading to alterations in their optical properties. The thermal treatment not only allowed for easy tuning of the emission color, but also increased the stability of the samples for long-term use as emitting devices.
ACS APPLIED NANO MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Hsin Wang, J. Sebastian Manzano, Philip J. Kitson, Margaret Mullin, Chang-Gen Lin, Igor I. Slowing, Leroy Cronin
Summary: Nanomaterials exhibit unique properties that can be tailored based on their morphology and composition. To overcome the limitations of existing synthesis methods, a digital synthesis method is developed to capture and document the entire synthesis process, making it more accessible and reproducible. This method utilizes chemical description language and three single reactors to automate the synthesis of various nanomaterials, enabling researchers from different fields to easily access and reproduce these materials.
Article
Environmental Sciences
Ali Reza Amani-Ghadim, Samira Arefi-Oskoui, Robab Mahmoudi, Abdolreza Tarighati Sareshkeh, Alireza Khataee, Fatemeh Khodam, Mir Saeed Seyed Dorraji
Summary: Inserting Gd ions into the crystalline lattice of ZnS quantum dots (QDs) enhanced their photo-catalytic activity. The influence of graphene oxide (GO) and graphitic carbon nitride (g-C3N4) on the photocatalytic activity of the ZnS QDs was also investigated. The results showed that the presence of Gd-doped ZnS QDs/g-C3N4 nanocomposite achieved the highest photocatalytic degradation efficiency and total organic carbon removal.
Article
Dentistry, Oral Surgery & Medicine
Marwa M. Essawy, Salma T. Rafik, Ashraf K. Awaad, Ghada M. Mourad, Samar N. El Achy
Summary: ZnS NPs, when activated by UV light, exhibit potent cytotoxicity and induce apoptosis in cancer cells. Additionally, their inherent luminescence allows for visualization of cellular uptake and tracking of cellular responses.
Article
Engineering, Electrical & Electronic
Priyanka Chaudhary, Ajeet Singh, Samiksha Sikarwar, B. C. Yadav
Summary: In this study, a facile, low-cost, and phosphine-free method was used to synthesize indium selenide quantum dots. The synthesized InSe QDs had small particle size and exhibited good optical properties, making them suitable for fabrication of LPG gas and humidity sensors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Li Kuichen, Zheng Kaiyuan, He Jingjia, Jin Zehao, He Qiu, Wang Lili
Summary: In this study, ZnS-QDs were prepared by a hydrothermal method, and the luminescence mechanism and the influence of synthesis conditions on the band gap width were discussed. By combining ZnS-QDs phosphors with organic silica gel, white quantum dot LEDs were successfully obtained.
ACTA CHIMICA SINICA
(2023)
Article
Multidisciplinary Sciences
Mirtha Rios-Silva, Myriam Perez, Roberto Luraschi, Esteban Vargas, Claudia Silva-Andrade, Jorge Valdes, Juan Marcelo Sandoval, Claudio Vasquez, Felipe Arenas
Summary: In this study, an environmental multimetal(loid)-resistant strain, MF05, was used to biosynthesize single- or multi-element nanostructures under anaerobic conditions. The results showed that using microorganisms as bionanofactories is a reliable and eco-friendly strategy for inorganic nanostructure synthesis. The MF05 strain was capable of synthesizing various types of inorganic nanostructures under anaerobic conditions.
Article
Spectroscopy
Masoud Gazizadeh, Gholamreza Dehghan, Jafar Soleymani
Summary: A sulfide-doped carbon dots/cadmium sulfide quantum dots ratiometric fluorescent nanosensor was developed for sensitive and selective determination of glibenclamide in biological fluids. The method utilizes the quenching effect of glibenclamide on the dual-emission intensity of the system. The developed nanosensor showed good accuracy in detecting glibenclamide in spiked human serum samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)