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  1. Article ; Online: Development of hierarchical copper sulfide-carbon nanotube (CuS-CNT) composites and utilization of their superior carrier mobility in efficient charge transport towards photodegradation of Rhodamine B under visible light.

    Das, Mainak / Das, Dhananjoy / Sil, Sayantan / Ray, Partha Pratim

    Nanoscale advances

    2023  Volume 5, Issue 14, Page(s) 3655–3663

    Abstract: In this work, the synthesis of visible light sensitive copper sulfide (CuS) nanoparticles and their composites with carbon nanotubes (T-CuS) ...

    Abstract In this work, the synthesis of visible light sensitive copper sulfide (CuS) nanoparticles and their composites with carbon nanotubes (T-CuS)
    Language English
    Publishing date 2023-05-31
    Publishing country England
    Document type Journal Article
    ISSN 2516-0230
    ISSN (online) 2516-0230
    DOI 10.1039/d3na00204g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Effect of Higher Carrier Mobility of the Reduced Graphene Oxide-Zinc Telluride Nanocomposite on Efficient Charge Transfer Facility and the Photodecomposition of Rhodamine B.

    Das, Dhananjoy / Das, Mainak / Sil, Sayantan / Sahu, Puspendu / Ray, Partha Pratim

    ACS omega

    2022  Volume 7, Issue 30, Page(s) 26483–26494

    Abstract: The synthesis of solar-light-responsive zinc telluride (ZnTe) nanoparticles and their composite with reduced graphene oxide (rGO-ZnTe) via a simple hydrothermal reaction is reported. The synthesized nanostructures were comprehensively characterized by a ... ...

    Abstract The synthesis of solar-light-responsive zinc telluride (ZnTe) nanoparticles and their composite with reduced graphene oxide (rGO-ZnTe) via a simple hydrothermal reaction is reported. The synthesized nanostructures were comprehensively characterized by a combination of X-ray diffraction and photoelectron spectroscopy, electron microscopy, UV-vis spectroscopy, photoluminescence spectroscopy and thermogravimetric analysis. The effects of graphene oxide on the crystallinity, microstructure, photo-excitation, light absorption, surface area and thermal stability of ZnTe were studied. The current-voltage (
    Language English
    Publishing date 2022-07-23
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.2c02472
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Anthracene-Based Fluorophore and Its Re(I) Complexes: Investigation of Electrical Properties and Schottky Diode Behavior.

    Sinha, Debopam / Sil, Sayantan / Ray, Partha Pratim / Rajak, Kajal Krishna

    ACS omega

    2020  Volume 5, Issue 45, Page(s) 29465–29476

    Abstract: A novel fluorophore (HL) [1-(( ...

    Abstract A novel fluorophore (HL) [1-((
    Language English
    Publishing date 2020-11-04
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.0c04403
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Photosensitive Schottky barrier diode behavior of a semiconducting Co(iii)–Na complex with a compartmental Schiff base ligand

    Ghosh, Kousik / Chattopadhyay, Shouvik / Frontera, Antonio / Ortega-Castro, Joaquín / Ray, Partha Pratim / Sil, Sayantan

    RSC advances. 2019 Oct. 28, v. 9, no. 60

    2019  

    Abstract: The opto-electronic properties of an X-ray characterized, end-to-end azide bridged cobalt(iii)–sodium complex, [(N3)CoLNa(N3)]n, have been investigated in detail. The complex is found to be a direct semiconductor material as confirmed by determining the ... ...

    Abstract The opto-electronic properties of an X-ray characterized, end-to-end azide bridged cobalt(iii)–sodium complex, [(N3)CoLNa(N3)]n, have been investigated in detail. The complex is found to be a direct semiconductor material as confirmed by determining the band gap of this complex by experimental as well as theoretical studies. The complex has also been used to construct a photosensitive Schottky device. Optical conductivity, calculated from the DFT study, has been used to analyze how the conductivity of the material changes upon illumination. The electrical conductivity and concomitantly, the photoconductivity of the material increase as a consequence of photon absorption.
    Keywords absorption ; azides ; cobalt ; diodes ; electrical conductivity ; ligands ; lighting ; photons ; photosensitivity ; schiff bases ; semiconductors ; X-radiation
    Language English
    Dates of publication 2019-1028
    Size p. 34710-34719.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/c9ra06354d
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Photosensitive Schottky barrier diode behavior of a semiconducting Co(iii)-Na complex with a compartmental Schiff base ligand.

    Ghosh, Kousik / Sil, Sayantan / Ray, Partha Pratim / Ortega-Castro, Joaquín / Frontera, Antonio / Chattopadhyay, Shouvik

    RSC advances

    2019  Volume 9, Issue 60, Page(s) 34710–34719

    Abstract: The opto-electronic properties of an X-ray characterized, end-to-end azide bridged cobalt(iii)-sodium complex, [( ... ...

    Abstract The opto-electronic properties of an X-ray characterized, end-to-end azide bridged cobalt(iii)-sodium complex, [(N
    Language English
    Publishing date 2019-10-28
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/c9ra06354d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Energy-Inexpensive Galvanic Deposition of BiOI on Electrodes and Its Conversion to 3D Porous BiVO₄-Based Photoanode

    Shinde, Shivkanya / Majumdar, Pavel / Sil, Sayantan / Löffler, Markus / Banerjee, Anamika / Rellinghaus, Bernd / Dass, Sahab / Ray, Partha Pratim / Patra, Snehangshu

    Journal of physical chemistry. 2020 July 31, v. 124, no. 35

    2020  

    Abstract: The present work focuses on energy-neutral, bias-free, scalable galvanic synthesis of highly crystalline thin films of BiOI on a fluorine-doped tin oxide (FTO) electrode (BiOI/FTO). Electrodes as developed were subjected to extensive characterization ... ...

    Abstract The present work focuses on energy-neutral, bias-free, scalable galvanic synthesis of highly crystalline thin films of BiOI on a fluorine-doped tin oxide (FTO) electrode (BiOI/FTO). Electrodes as developed were subjected to extensive characterization techniques viz. field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy, atomic force microscopy, X-ray diffractometer, ultraviolet–visible spectroscopy, and other electrochemical techniques to observe physio(electro)chemical correlation between galvanic deposition and electrodeposition. In the next step, these BiOI/FTO electrodes were utilized to develop 3D porous BiVO₄/FTO electrodes (termed as g-BiVO₄) via a mild thermochemical process. The g-BiVO₄/FTO electrode prepared this way exhibited exceptional photoelectrochemical performance for sulfite oxidation, achieving 1.2 mA cm–² at a bias potential of 1.23 V versus reversible hydrogen electrode (RHE) with the early photocurrent onset (0.21 V vs RHE), as comparable to electrodeposited BiVO₄ on a FTO electrode (e-BiVO₄/FTO). We also fabricated Schottky barrier diode to shed light on the charge-transport mechanism of the g-BiVO₄/FTO electrode. In order to improve water oxidation kinetics, we further photodeposited cobalt acetate (CoAc) on the g-BiVO₄/FTO electrode. The CoAc-g-BiVO₄/FTO electrode, on optimization, showed a photocurrent of 0.73 mA cm–² at 1.23 V under the illumination of 20 mW cm–² blue light-emitting diode with 36 h of sustained water catalytic performance. This demonstrates the importance of galvanic deposition process as an alternative to the high energy-demanding synthesis techniques such as electrodeposition, hydrothermal, and so forth.
    Keywords Raman spectroscopy ; X-ray diffraction ; acetates ; atomic force microscopy ; catalytic activity ; cobalt ; electric current ; electrochemistry ; electrodes ; electroplating ; energy-dispersive X-ray analysis ; hydrogen ; light emitting diodes ; lighting ; oxidation ; physical chemistry ; sulfites ; tin dioxide ; ultraviolet-visible spectroscopy
    Language English
    Dates of publication 2020-0731
    Size p. 18930-18945.
    Publishing place American Chemical Society
    Document type Article
    Note NAL-AP-2-clean
    ISSN 1932-7455
    DOI 10.1021/acs.jpcc.0c06059
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Investigation of Ion-Mediated Charge Transport in Methylammonium Lead Iodide Perovskite

    Dhar, Joydeep / Sil Sayantan / Dey Arka / Sanyal Dirtha / Ray Partha Pratim

    The Journal of Physical Chemistry C. 2017 Mar. 16, v. 121, no. 10

    2017  

    Abstract: We have investigated the origin of ionic conductivity in methylammonium lead iodide (MAPbI₃) by positron annihilation lifetime spectroscopy (PALS), supplemented by coincidence Doppler broadening spectroscopic (CDBS) techniques which reveal the presence ... ...

    Abstract We have investigated the origin of ionic conductivity in methylammonium lead iodide (MAPbI₃) by positron annihilation lifetime spectroscopy (PALS), supplemented by coincidence Doppler broadening spectroscopic (CDBS) techniques which reveal the presence of methylammonium (MA⁺) defects in the perovskite crystal lattice. Crystallinity and the defect concentration vary with the perovskite synthesis process, which in turn governs the magnitude of ionic conductivity. Single-crystalline perovskite contains lesser defects with equal probability of developing both cationic and anionic (halide) vacancies, whereas the polycrystalline perovskite sample developed through mechanical process carries mainly cationic, i.e., MA⁺ vacancy (V′MA) in its crystal lattice as indicated by direct current (dc) polarization experiment.
    Keywords crystal structure ; electrons ; iodides ; probability ; spectroscopy
    Language English
    Dates of publication 2017-0316
    Size p. 5515-5522.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1932-7455
    DOI 10.1021%2Facs.jpcc.7b01047
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Designing of Pb(II)-Based Novel Coordination Polymers (CPs): Structural Elucidation and Optoelectronic Application.

    Dey, Sunanda / Sil, Sayantan / Dutta, Basudeb / Naskar, Kaushik / Maity, Suvendu / Ray, Partha Pratim / Sinha, Chittaranjan

    ACS omega

    2019  Volume 4, Issue 22, Page(s) 19959–19968

    Abstract: ... ...

    Abstract [Pb
    Language English
    Publishing date 2019-11-13
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.9b02899
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Positron Annihilation Spectroscopic Investigation on the Origin of Temperature-Dependent Electrical Response in Methylammonium Lead Iodide Perovskite.

    Dhar, Joydeep / Sil, Sayantan / Dey, Arka / Ray, Partha Pratim / Sanyal, Dirtha

    The journal of physical chemistry letters

    2017  Volume 8, Issue 8, Page(s) 1745–1751

    Abstract: Organic-inorganic hybrid perovskite has appeared as one of the leading materials for realizing solution-based high-performing optoelectronic devices. The charge transport properties in this class of material are quite intriguing and still need to be ... ...

    Abstract Organic-inorganic hybrid perovskite has appeared as one of the leading materials for realizing solution-based high-performing optoelectronic devices. The charge transport properties in this class of material are quite intriguing and still need to be carefully investigated. The temperature-dependent electrical property of methylammonium lead iodide (CH
    Language English
    Publishing date 2017-04-20
    Publishing country United States
    Document type Journal Article
    ISSN 1948-7185
    ISSN (online) 1948-7185
    DOI 10.1021/acs.jpclett.7b00446
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Phytochemical composition analysis and evaluation of

    Ghosh, Pranabesh / Das, Chandrima / Biswas, Swagata / Nag, Sudip Kumar / Dutta, Alolika / Biswas, Maitrayee / Sil, Sayantan / Hazra, Labani / Ghosh, Chandreyi / Das, Shaktijit / Saha, Moumita / Mondal, Nasim / Mandal, Suprodip / Ghosh, Anirban / Karmakar, Srabani / Chatterjee, Sirshendu

    F1000Research

    2020  Volume 9, Page(s) 493

    Abstract: Background: ...

    Abstract Background:
    MeSH term(s) Antioxidants/pharmacology ; Asteraceae/chemistry ; Cells, Cultured ; Cleome/chemistry ; Commelina/chemistry ; Euphorbia/chemistry ; Heliotropium/chemistry ; Humans ; India ; Leukocytes, Mononuclear/drug effects ; Phytochemicals/pharmacology ; Plant Extracts/pharmacology ; Plant Weeds/chemistry
    Chemical Substances Antioxidants ; Phytochemicals ; Plant Extracts
    Language English
    Publishing date 2020-06-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 2699932-8
    ISSN 2046-1402 ; 2046-1402
    ISSN (online) 2046-1402
    ISSN 2046-1402
    DOI 10.12688/f1000research.22966.1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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