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  1. Article ; Online: Metal-organic Frameworks in Semiconductor Devices.

    Parashar, Ranjeev Kumar / Jash, Priyajit / Zharnikov, Michael / Mondal, Prakash Chandra

    Angewandte Chemie (International ed. in English)

    2024  Volume 63, Issue 15, Page(s) e202317413

    Abstract: Metal-organic frameworks (MOFs) are a specific class of hybrid, crystalline, nano-porous materials made of metal-ion-based 'nodes' and organic linkers. Most of the studies on MOFs largely focused on porosity, chemical and structural diversity, gas ... ...

    Abstract Metal-organic frameworks (MOFs) are a specific class of hybrid, crystalline, nano-porous materials made of metal-ion-based 'nodes' and organic linkers. Most of the studies on MOFs largely focused on porosity, chemical and structural diversity, gas sorption, sensing, drug delivery, catalysis, and separation applications. In contrast, much less reports paid attention to understanding and tuning the electrical properties of MOFs. Poor electrical conductivity of MOFs (~10
    Language English
    Publishing date 2024-02-08
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202317413
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Versatile electrochemical approaches towards the fabrication of molecular electronic devices.

    Sachan, Pradeep / Mondal, Prakash Chandra

    The Analyst

    2020  Volume 145, Issue 5, Page(s) 1563–1582

    Abstract: The concept of molecular electronic devices (MEDs) has evolved since the first theoretical report was published in 1974. This theoretical article laid the foundation for understanding charge-transport phenomena by utilizing either a single molecule or ... ...

    Abstract The concept of molecular electronic devices (MEDs) has evolved since the first theoretical report was published in 1974. This theoretical article laid the foundation for understanding charge-transport phenomena by utilizing either a single molecule or numerous molecules sandwiched between two electrical conductors. Since then, many research groups have engaged in molecular junction fabrication using a variety of molecules including organic, inorganic, and organometallic molecules, polymers, and biomolecules that can mimic the electronic functions of traditional silicon-based devices. To date, most of these molecular junctions have been constructed using well-explored molecular assemblies of thiolated derivatives adsorbed mostly on Au substrates. However, the Au-S bond is not considered to be a true covalent bond in view of its surface bond energy, which is ∼1.9 eV, much less than pure covalent bond energy. Additionally, Au-S interfaces suffer from poor reactivity and instability over time; thus, they are not suitable for real world applications. Therefore, an alternative approach for the fabrication of molecular electronic junctions must be envisioned to address all the difficulties mentioned above. Herein, we summarize the most recent experiential outcomes to demonstrate how electrochemical techniques can be employed to form robust molecular layers on various substrates including Au, ZnO, SnO
    Language English
    Publishing date 2020-01-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 210747-8
    ISSN 1364-5528 ; 0003-2654
    ISSN (online) 1364-5528
    ISSN 0003-2654
    DOI 10.1039/c9an01948k
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  3. Book ; Online: Metal-Polypyridyl Complexes in Electronic Circuits

    Kaur, Rajwinder / Singh, Bijai / Singh, Vikram / Mondal, Prakash Chandra

    2024  

    Abstract: The integration of functional molecules onto conductive or dielectric surfaces represents a promising avenue for employing molecule-centric technologies, encompassing sensor development, electrochromic, and the facilitation of charge and spin transport ... ...

    Abstract The integration of functional molecules onto conductive or dielectric surfaces represents a promising avenue for employing molecule-centric technologies, encompassing sensor development, electrochromic, and the facilitation of charge and spin transport at the nanoscale These assemblies exhibit robust physical and chemical stability, exerting influence not only on the interfacial properties of pertinent surfaces but also on the characteristics of the assembled molecules themselves. Within the spectrum of available molecules, metal-polypyridyl complexes have emerged as focal points of investigation for generating surface-bound assemblies, encompassing monolayers or multilayers, achieved through pre- or post-functionalization methodologies. The appeal of these complexes lies in their inherent versatility, stemming from facile synthesis, appreciable stability, and tunable properties encompassing redox behaviors, reactivity in excited states, luminescent emissions, excited state longevity, as well as responsiveness to stimuli-induced electron and energy transfer. This comprehensive review aims to delve into the nuanced traits and applications of surface-bound metal-polypyridyl complexes, elucidating their characteristics and practical implementations through pertinent and illustrative examples in the field of molecular electronics.

    Comment: 35 pages, 22 Figures
    Keywords Condensed Matter - Materials Science
    Subject code 540
    Publishing date 2024-01-16
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Book ; Online: Metal-organic Frameworks in Semiconductor Devices

    Parashar, Ranjeev Kumar / Jash, Priyajit / Zharnikov, Michael / Mondal, Prakash Chandra

    A Revised Version

    2024  

    Abstract: Metal-organic frameworks (MOFs) are a specific class of hybrid, crystalline, nano-porous materials made of metal-ion-based nodes and organic linkers. Most of the studies on MOFs largely focused on porosity, chemical and structural diversity, gas sorption, ...

    Abstract Metal-organic frameworks (MOFs) are a specific class of hybrid, crystalline, nano-porous materials made of metal-ion-based nodes and organic linkers. Most of the studies on MOFs largely focused on porosity, chemical and structural diversity, gas sorption, sensing, drug delivery, catalysis, and separation applications. In contrast, much less reports paid attention to understanding and tuning the electrical properties of MOFs. Poor electrical conductivity of MOFs reported in earlier studies, impeded their applications in electronics, optoelectronics, and renewable energy storage. To overcome this drawback, the MOF community has adopted several intriguing strategies for electronic applications. The present review focuses on creatively designed bulk MOFs and surface-anchored MOFs (SURMOFs) with different metal nodes (from transition metals to lanthanides), ligand functionalities, and doping entities, allowing tuning and enhancement of electrical conductivity. Diverse platforms for MOFs-based electronic device fabrications, conductivity measurements, and underlying charge transport mechanisms are also addressed. Overall, the review highlights the pros and cons of MOFs-based electronics, followed by an analysis of the future directions of research, including optimization of the MOF compositions, heterostructures, electrical contacts, device stacking, and further relevant options which can be of interest for MOF researchers and result in improved devices performance.

    Comment: 34 pages, 16 Figures
    Keywords Condensed Matter - Materials Science
    Subject code 620
    Publishing date 2024-01-16
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    Inter-library loan at ZB MED

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  5. Book ; Online: Dipole-moment induced capacitance in nanoscale molecular junctions

    Malik, Ankur / Gupta, Ritu / Mondal, Prakash Chandra

    2023  

    Abstract: Nanoscale molecular junctions are celebrated nanoelectronic devices for mimicking several electronic functions including rectifiers, sensors, wires, switches, transistors, and memory but capacitive behavior is nearly unexplored. Capacitors are crucial ... ...

    Abstract Nanoscale molecular junctions are celebrated nanoelectronic devices for mimicking several electronic functions including rectifiers, sensors, wires, switches, transistors, and memory but capacitive behavior is nearly unexplored. Capacitors are crucial energy storage devices that store energy in the form of electrical charges. A capacitor utilizes two electrical conductors separated by a dielectric material. However, many oxides-based dielectrics are well-studied for integrating capacitors, however, capacitors comprised of thin-film molecular layers are not well-studied. The present work describes electrochemically grafted thin films of benzimidazole (BENZ) grown on patterned ITO electrodes on which a 50 nm Al is deposited to fabricate large-scale (500 x 500 micron2) molecular junctions. The nitrogen and sulfur-containing molecular junctions, ITO/BENZ/Al act as a parallel-plate capacitor with a maximum capacitance of ~59.6 to 4.79 microFcm-2. The present system can be an excellent platform for molecular charge storage for future energy applications.

    Comment: 12 Pages, 5 Figures
    Keywords Physics - Applied Physics ; Condensed Matter - Materials Science ; F.2.2
    Subject code 541
    Publishing date 2023-03-28
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    Inter-library loan at ZB MED

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  6. Article ; Online: Nanoscale molecular rectifiers.

    Gupta, Ritu / Fereiro, Jerry A / Bayat, Akhtar / Pritam, Anurag / Zharnikov, Michael / Mondal, Prakash Chandra

    Nature reviews. Chemistry

    2023  Volume 7, Issue 2, Page(s) 106–122

    Abstract: The use of molecules bridged between two electrodes as a stable rectifier is an important goal in molecular electronics. Until recently, however, and despite extensive experimental and theoretical work, many aspects of our fundamental understanding and ... ...

    Abstract The use of molecules bridged between two electrodes as a stable rectifier is an important goal in molecular electronics. Until recently, however, and despite extensive experimental and theoretical work, many aspects of our fundamental understanding and practical challenges have remained unresolved and prevented the realization of such devices. Recent advances in custom-designed molecular systems with rectification ratios exceeding 10
    Language English
    Publishing date 2023-01-13
    Publishing country England
    Document type Journal Article ; Review
    ISSN 2397-3358
    ISSN (online) 2397-3358
    DOI 10.1038/s41570-022-00457-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Thickness-Dependent Charge Transport in Three Dimensional Ru(II)- Tris(phenanthroline)-Based Molecular Assemblies.

    Gupta, Ritu / Bhandari, Shapath / Kaya, Savas / Katin, Konstantin P / Mondal, Prakash Chandra

    Nano letters

    2023  Volume 23, Issue 23, Page(s) 10998–11005

    Abstract: We describe here the fabrication of large-area molecular junctions with a configuration of ITO/[Ru(Phen) ...

    Abstract We describe here the fabrication of large-area molecular junctions with a configuration of ITO/[Ru(Phen)
    Language English
    Publishing date 2023-12-04
    Publishing country United States
    Document type Journal Article
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.3c03256
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  8. Book ; Online: Metal-Organic Frameworks in Semiconductor Devices

    Parashar, Ranjeev Kumar / Jash, Priyajit / Mondal, Prakash Chandra

    Recent Advancements and a Bright Future

    2022  

    Abstract: Metal-organic frameworks (MOFs) symbolize the particular class of hybrid crystalline, nano-porous materials made of either discrete metal ions or clusters with organic linkers. Past studies on MOFs-based materials largely focused on porosity, chemical ... ...

    Abstract Metal-organic frameworks (MOFs) symbolize the particular class of hybrid crystalline, nano-porous materials made of either discrete metal ions or clusters with organic linkers. Past studies on MOFs-based materials largely focused on porosity, chemical and structural diversity, gas sorption, sensing, drug delivery, catalysis, and separation applications. However, initial efforts either neglected or have not gained much attention to refine the electrical conductivity of MOFs materials. MOFs reported earlier with poor electrical conductivity impeded to employ in electronics, optoelectronics, and renewable energy storage applications. To overcome this issue, the MOFs community has been engaged in improving electrical conductivity by adopting several intriguing strategies. We shed light on the charge transport mechanisms which are mainly two processes, either through a bond or through space. This review aims to showcase the current scenario on creatively designed MOF materials followed by fabrication advancement of high-quality molecular thin films, and semiconductor device fabrication for stimuli-responsive current-voltage (I-V) studies. Overall, the review addresses the pros and cons of the MOFs-based electronics, followed by our prediction on improvement MOFs composition, mechanically stable interfaces, device stacking, further relevant experiments which can be of great interest to the MOFs researchers in improving further devices performances.
    Keywords Condensed Matter - Materials Science
    Subject code 620
    Publishing date 2022-06-27
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    Inter-library loan at ZB MED

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  9. Book ; Online: Recent advances in inorganic oxides-based resistive random-access memory devices

    Pritam, Anurag / Gupta, Ritu / Mondal, Prakash Chandra

    2022  

    Abstract: Memory has always been a building block element for information technology. Emerging technologies such as artificial intelligence, big data, the internet of things, etc., require a novel kind of memory technology that can be energy efficient and have an ... ...

    Abstract Memory has always been a building block element for information technology. Emerging technologies such as artificial intelligence, big data, the internet of things, etc., require a novel kind of memory technology that can be energy efficient and have an exception data retention period. Among several existing memory technologies, resistive random-access memory (RRAM) is an answer to the above question as it is necessary to possess the combination of speed of RAM and nonvolatility, thus proving to be one of the most promising candidates to replace flash memory in next-generation non-volatile RAM applications. This review discusses the existing challenges and technological advancements made with RRAM, including switching mechanism, device structure, endurance, fatigue resistance, data retention period, and mechanism of resistive switching in inorganic oxides material used as a dielectric layer. Finally, a summary and a perspective on future research are presented.
    Keywords Condensed Matter - Materials Science ; Physics - Applied Physics
    Publishing date 2022-05-02
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Coexistence of Electrochromism and Bipolar Nonvolatile Memory in a Single Viologen.

    Parashar, Ranjeev Kumar / Kandpal, Suchita / Pal, Nila / Manna, Debashree / Pal, Bhola Nath / Kumar, Rajesh / Mondal, Prakash Chandra

    ACS applied materials & interfaces

    2023  

    Abstract: Viologens are fascinating redox-active organic compounds that have been widely explored in electrochromic devices (ECDs). However, the combination of electrochromic and resistive random-access memory in a single viologen remains unexplored. We report the ...

    Abstract Viologens are fascinating redox-active organic compounds that have been widely explored in electrochromic devices (ECDs). However, the combination of electrochromic and resistive random-access memory in a single viologen remains unexplored. We report the coexistence of bistate electrochromic and single-resistor (1R) memory functions in a novel viologen. A high-performance electrochromic function is achieved by combining viologen (BzV
    Language English
    Publishing date 2023-10-26
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c12489
    Database MEDical Literature Analysis and Retrieval System OnLINE

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