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  1. Article: Deposition and Optical Characterization of Sputter Deposited p-Type Delafossite CuGaO

    Bharath, Akash Hari / Saikumar, Ashwin Kumar / Sundaram, Kalpathy B

    Materials (Basel, Switzerland)

    2024  Volume 17, Issue 7

    Abstract: ... ...

    Abstract CuGaO
    Language English
    Publishing date 2024-04-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma17071609
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Boron carbon nitride based metal-insulator-metal UV detectors for harsh environment applications.

    Prakash, Adithya / Nehate, Shraddha D / Sundaram, Kalpathy B

    Optics letters

    2016  Volume 41, Issue 18, Page(s) 4249–4252

    Abstract: A metal-insulator-metal (MIM) structure using boron carbon nitride (BCN) was tested for its UV detection capability. Since BCN is one of the hardest and chemically robust materials, it is expected to be a potential choice for a UV detector in extreme and ...

    Abstract A metal-insulator-metal (MIM) structure using boron carbon nitride (BCN) was tested for its UV detection capability. Since BCN is one of the hardest and chemically robust materials, it is expected to be a potential choice for a UV detector in extreme and harsh conditions. The BCN thin films were deposited using a dual target RF magnetron sputtering process. The optoelectronic performance of the BCN MIM devices were examined through UV photocurrent measurements. A UV photocurrent of two orders of magnitude higher with respect to dark current was achieved in the range of -3 to 3 V.
    Language English
    Publishing date 2016-09-15
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.41.004249
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Centimeter-Scale Periodically Corrugated Few-Layer 2D MoS

    Okogbue, Emmanuel / Kim, Jung Han / Ko, Tae-Jun / Chung, Hee-Suk / Krishnaprasad, Adithi / Flores, Jean Calderon / Nehate, Shraddha / Kaium, Md Golam / Park, Jong Bae / Lee, Sei-Jin / Sundaram, Kalpathy B / Zhai, Lei / Roy, Tania / Jung, Yeonwoong

    ACS applied materials & interfaces

    2018  Volume 10, Issue 36, Page(s) 30623–30630

    Abstract: Two-dimensional (2D) transition metal dichalcogenide (TMD) layers exhibit superior optical, electrical, and structural properties unattainable in any traditional materials. Many of these properties are known to be controllable via external mechanical ... ...

    Abstract Two-dimensional (2D) transition metal dichalcogenide (TMD) layers exhibit superior optical, electrical, and structural properties unattainable in any traditional materials. Many of these properties are known to be controllable via external mechanical inputs, benefiting from their extremely small thickness coupled with large in-plane strain limits. However, realization of such mechanically driven tunability often demands highly complicated engineering of 2D TMD layer structures, which is difficult to achieve on a large wafer scale in a controlled manner. Herein, we explore centimeter-scale periodically corrugated 2D TMDs, particularly 2D molybdenum disulfide (MoS
    Language English
    Publishing date 2018-08-08
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.8b08178
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Inter-library loan at ZB MED

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  4. Article ; Online: Three dimensionally-ordered 2D MoS

    Islam, Md Ashraful / Kim, Jung Han / Ko, Tae-Jun / Noh, Chanwoo / Nehate, Shraddha / Kaium, Md Golam / Ko, Minjee / Fox, David / Zhai, Lei / Cho, Chang-Hee / Sundaram, Kalpathy B / Bae, Tae-Sung / Jung, YounJoon / Chung, Hee-Suk / Jung, Yeonwoong

    Nanoscale

    2018  Volume 10, Issue 37, Page(s) 17525–17533

    Abstract: The intrinsically anisotropic crystallinity of two-dimensional (2D) transition metal dichalcogenide (2D TMD) layers enables a variety of intriguing material properties which strongly depend on the physical orientation of constituent 2D layers. For ... ...

    Abstract The intrinsically anisotropic crystallinity of two-dimensional (2D) transition metal dichalcogenide (2D TMD) layers enables a variety of intriguing material properties which strongly depend on the physical orientation of constituent 2D layers. For instance, 2D TMDs with vertically-aligned layers exhibit numerous dangling bonds on their 2D layer edge sites predominantly exposed on the surface, projecting significantly improved physical and/or chemical adsorption capability compared to their horizontally-oriented 2D layer counterparts. Such property advantages can be further promoted as far as the material can be integrated onto unconventional substrates of tailored geometry/functionality, offering vast opportunities for a wide range of applications which demand enhanced surface area/reactivity and mechanical flexibility. Herein, we report a new form of 2D TMDs, i.e., three-dimensionally ordered 2D molybdenum disulfide (2D MoS2) with vertically-aligned layers integrated on elastomeric substrates and explore their tunable multi-functionalities and technological promise. We grew large-scale (>2 cm2) vertically-aligned 2D MoS2 layers using a three-dimensionally patterned silicon dioxide (SiO2) template and directly transferred/integrated them onto flexible polydimethylsiloxane (PDMS) substrates by taking advantage of the distinguishable water-wettability of 2D MoS2vs. SiO2. The excellent structural integrity of the integrated vertical 2D MoS2 layers was confirmed by extensive spectroscopy/microscopy characterization. In addition, the stretch-driven unique tunability of their optical and surface properties was also examined. Moreover, we applied this material for flexible humidity sensing and identified significantly improved (>10 times) sensitivity over conventionally-designed horizontal 2D MoS2 layers, further confirming their high potential for unconventional flexible technologies.
    Language English
    Publishing date 2018-09-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/c8nr05362f
    Database MEDical Literature Analysis and Retrieval System OnLINE

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