John Wellington John

Employment

• A*STAR Graduate Academy Scientist I
  2022 - Present

Education

Education history is unavailable.

Projects & Funding

Projects & funding information is unavailable.

Publications (11)

• Room-temperature infrared photoluminescence and broadband photodetection characteristics of Ge/GeSi islands on silicon-on-insulator
  Sudarshan Singh, J. John, Arijit Sarkar +3 more
  Nanotechnology 2025 DOI: 10.1088/1361-6528/ad87fb
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• Probing charge traps at the 2D semiconductor/dielectric interface
  Nanoscale 2023 DOI: 10.1039/D3NR03453D
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• Black-Arsenic/Germanium-on-Insulator Heterostructure Field Effect Transistor for Ultrafast Polarization Sensitive Short-Wave Infrared Photodetection
  J. John, Veerendra Dhyani, Alka Jakhar +4 more
  IEEE Electron Device Letters 2022 DOI: 10.1109/LED.2022.3193724
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• Self-powered, low-noise and high-speed nanolayered MoSe2/p-GaN heterojunction photodetector from ultraviolet to near-infrared wavelengths
  Harmanpreet Kaur Sandhu, J. John, Alka Jakhar +3 more
  Nanotechnology 2022 DOI: 10.1088/1361-6528/ac6817
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• MoSe 2 /n‐GaN Heterojunction Induced High Photoconductive Gain for Low‐Noise Broadband Photodetection from Ultraviolet to Near‐Infrared Wavelengths
  Harmanpreet Kaur Sandhu, J. John, Alka Jakhar +3 more
  Advanced Materials Interfaces 2022 DOI: 10.1002/admi.202102200
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• Low-noise, high-detectivity, polarization-sensitive, room-temperature infrared photodetectors based on Ge quantum dot-decorated Si-on-insulator nanowire field-effect transistors
  J. John, Veerendra Dhyani, Sudarshan Singh +4 more
  Nanotechnology 2021 DOI: 10.1088/1361-6528/abf6f0
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• Large area, low power MoSe2 nanostructures based Infrared photodetectors on flexible substrates beyond $2.3\ \mu\mathrm{m}$
  J. John, Veerendra Dhyani, Sarmistha Maity +3 more
  2020 5th IEEE International Conference on Emerging Electronics (ICEE) 2020 DOI: 10.1109/icee50728.2020.9776758
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• Broadband infrared photodetector based on nanostructured MoSe2–Si heterojunction extended up to 2.5 μm spectral range
  J. John, Veerendra Dhyani, Sarmistha Maity +4 more
  Nanotechnology 2020 DOI: 10.1088/1361-6528/ab95b9
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• Ultrahigh Negative Infrared Photoconductance in Highly As-Doped Germanium Nanowires Induced by Hot Electron Trapping
  J. John, Veerendra Dhyani, Yordan Marchev Georgiev +6 more
  ACS Applied Electronic Materials 2020 DOI: 10.1021/acsaelm.0c00245
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• Diameter-dependent photoresponse with high internal gain in a back gated single Si nanowire phototransistor
  Veerendra Dhyani, Alka Jakhar, J. John +1 more
  Journal of Physics D: Applied Physics 2019 DOI: 10.1088/1361-6463/ab313c
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• Role of Internet of Things in disaster management
  2017 International Conference on Innovations in Information, Embedded and Communication Systems (ICIIECS) 2017 DOI: 10.1109/iciiecs.2017.8275928
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