Formation and optoelectronic properties of graphene sheets with CdSe/CdS/ZnS quantum dots monolayer formed by Langmuir-Schaefer hybrid method

Al-Alwani, Ammar J.; Chumakov, A. S.; Shinkarenko, O.; Gorbachev, I. A.; Pozharov, M. V.; Venig, S. B.; Glukhovskoy, E. G.

doi:10.1016/j.apsusc.2017.03.235

Cited by 19 publications

(6 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[138] Al-Alwani et al demonstrated a hybrid photodetector composed of monolayer of multiphase CdSe/CdS/ZnS QDs and monolayer of liquid exfoliated fewlayer graphene (FLG) fabricated via Langmuir-Blodgett (LB) technique. [139] The LS method has the advantage compared to other liquid deposition methods for more accurate monolayer formation and control of their thickness and structure. With this method, monolayer FLG nanosheets were successfully deposited with 5-8 nm and were covered by ≈10 nm of monolayer CdSe/CdS/ZnS QDs (Figure 14b).…”

Section: Graphene-based Hybrid Photodetectorsmentioning

confidence: 99%

See 1 more Smart Citation

Liquid‐Exfoliated 2D Materials for Optoelectronic Applications

Alzakia

Tan

2021

Advanced Science

View full text Add to dashboard Cite

Two‐dimensional (2D) materials have attracted tremendous research attention in recent days due to their extraordinary and unique properties upon exfoliation from the bulk form, which are useful for many applications such as electronics, optoelectronics, catalysis, etc. Liquid exfoliation method of 2D materials offers a facile and low‐cost route to produce large quantities of mono‐ and few‐layer 2D nanosheets in a commercially viable way. Optoelectronic devices such as photodetectors fabricated from percolating networks of liquid‐exfoliated 2D materials offer advantages compared to conventional devices, including low cost, less complicated process, and higher flexibility, making them more suitable for the next generation wearable devices. This review summarizes the recent progress on metal–semiconductor–metal (MSM) photodetectors fabricated from percolating network of 2D nanosheets obtained from liquid exfoliation methods. In addition, hybrids and mixtures with other photosensitive materials, such as quantum dots, nanowires, nanorods, etc. are also discussed. First, the various methods of liquid exfoliation of 2D materials, size selection methods, and photodetection mechanisms that are responsible for light detection in networks of 2D nanosheets are briefly reviewed. At the end, some potential strategies to further improve the performance the devices are proposed.

show abstract

Section: Graphene-based Hybrid Photodetectorsmentioning

confidence: 99%

“…b) Current-voltage characteristic of FLG/CdSe/CdS/ZnS QD hybrid photodetector in dark, under visible illumination, and under UV (365 nm) illumination. Reproduced with permission [139]. Copyright 2017, Elsevier B.V. c) rGO/CdSe/ZnS core-shell nanoparticle hybrid photodetector.…”

mentioning

confidence: 99%

Liquid‐Exfoliated 2D Materials for Optoelectronic Applications

Alzakia

Tan

2021

Advanced Science

View full text Add to dashboard Cite

show abstract

“…Chalcogenide semiconductors, including CdS and CdSe, have also been demonstrated as effective candidates to hybrid with ZnS for high‐performance PDs . Exemplified here by ZnS/CdS, Lou et al synthesized flexible ZnS/CdS PD via thermal evaporation process and standard lithography .…”

Section: Applicationsmentioning

confidence: 99%

Design Principles and Material Engineering of ZnS for Optoelectronic Devices and Catalysis

Liu

Chen

et al. 2018

Adv Funct Materials

View full text Add to dashboard Cite

ZnS, as one of the first semiconductors discovered and a rising material star, has embraced exciting breakthroughs in the past few years. To shed light on the design principles and engineering techniques of ZnS for improved/novel optoelectronic properties, the fundamental mechanisms and commonly employed strategies are proposed in this review. Recent progress on modifications of ZnS allows it to be extensively and effectively used in versatile applications, including transparent conductors, UV photodetectors, luminescent devices, and catalysis, which are clearly and comprehensively summarized in this work. Novel functional devices springing up from the newly developed ZnS-based materials are highlighted as well. This review not only provides a scientific insight into the advances of ZnS-based materials, but also touches on the future opportunities in this inspiring field.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adfm.201802029. relatively high charge recombination rate and low charge transport process inhibit the optoelectronic properties of ZnS as a high-performance photodetector. As a window layer of optoelectronic devices, a lack of high electrical conductivity typically hinders the practical use of ZnS in solar cells, photodiodes, light-emitting devices, etc. As a photocatalyst, the transparency of ZnS becomes a drawback as it suffers from a poor utilization of sunlight.There is not a perfect material, but the potential of developing a material is beyond limitation. The past few years have witnessed extensive designing and engineering of ZnS to explore its potentials in specific applications. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] This review summarizes the recent breakthroughs on ZnS-based materials as excellent candidates in optoelectronic devices, photocatalysis, and other novel functional devices. More importantly, it sheds light on the design principles and fundamental mechanisms of the improved performance of ZnS through strategies such as developing novel nanostructures, bandgap engineering, alloying with other materials, etc. To the best of our knowledge, it is the first comprehensive review on the design principles and material engineering of ZnS for novel/improved properties and intended applications. Briefly, current literature on a variety of ZnS-based structures was first summarized, ranging from 0D to 2D nanostructures. Then, the representative applications of ZnS-based materials are described, which are mainly consisted of four parts, as shown in Figure 1: transparent conductors, UV photodetectors, luminescent devices, and catalysis. Each part contains the latest design strategies of ZnS for the intended applications, fabrication techniques, representative examples, and the state-of-the-art devices. Finally, it outlines the challenges and opportunities in each field. In particular, we provide our perspectives on the future research directions of ZnS in energy and environment.

show abstract

“…In addition, previous studies have shown that organic light emitting diodes (OLEDs) based on Langmuir-Blodgett films have better performance characteristics than OLEDs obtained by other methods [17]. At the same time, the study of floating layers of phthalocyanine derivatives is necessary, since the structure and properties of thin-film materials usually depend on the supramolecular organization of floating layers [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Thin-film materials based on phthalocyanine derivatives: structure and physico-chemical properties

et al. 2019

View full text Add to dashboard Cite

In order to establish the effect of the molecular structure of mix-substituted phthalocyanine derivatives on its supramolecular organization in thin-films, the floating layers of three A3B-type phthalocyanine derivatives were obtained. Their supramolecular organization was determined and it was found that the studied compounds form homogeneous stable floating layers on the water surface. Structure parameters of floating layers depend both on the length of aliphatic substituents (R = CnH2n+1) and the metal complexing agent. Ligands I and II form stable monolayer structures, which the layer packing periods increase with the elongation of aliphatic substituents: the lattice parameter (d) is 1.93 and 2.3 nm for ligands I (n = 6) and II (n = 8), correspondingly. During further compression of the formed monolayers, ligands I and II form stable bilayers, in which the arrangement of molecules remains similar to the structure of the previous monolayers. These bilayers contain minor inclusions of 3D aggregates. Metal complex III forms only stable monolayer (d = 2.06 nm), upon further compression of which 3D- aggregates included in the monolayer are formed.

show abstract

Formation and optoelectronic properties of graphene sheets with CdSe/CdS/ZnS quantum dots monolayer formed by Langmuir-Schaefer hybrid method

Cited by 19 publications

References 29 publications

Liquid‐Exfoliated 2D Materials for Optoelectronic Applications

Liquid‐Exfoliated 2D Materials for Optoelectronic Applications

Design Principles and Material Engineering of ZnS for Optoelectronic Devices and Catalysis

Thin-film materials based on phthalocyanine derivatives: structure and physico-chemical properties

Contact Info

Product

Resources

About