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Study of Metal-Insulator-Metal Diodes for Photodetection

Li, Li
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1367319217

Abstract Details

2013, Master of Science (M.S.), University of Dayton, Electro-Optics.
We study the optical responsivity of metal-insulator-metal (MIM) devices using different metals, but at least one metal with displaying plasmonic resonance characteristics. We apply quantum mechanical tunneling and equilibrium electron statistics to calculate the current density for the MIM structure with forward and backward bias voltages. We also examine the tunneling properties for nanoslabs and nanorods which alter the electron density of states by laterally confining the electrons and lead to a change of the tunneling current. To calculate the quantum tunneling current we use two methods for solving Schrodinger’s equation: Transfer Matrix Method (TMM) and Shooting method to simulate tunneling probability current through the insulating gap. Both methods are in excellent agreement. The tunneling current performance of MIM nanostructure is determined by the size and shape of insulator gap. Using the quantum results we calculate the DC and AC current of MIM nanostructures when an electromagnetic field is applied. The electrons tunnel through the insulating gap driven by an electromagnetic field using a photon assisted tunneling expression. Finally, the results for the DC and AC current are evaluated to determine the MIM responsivity from the long wavelength infrared (IR) regime to the near IR regime.
JOSEPH HAUS (Advisor)
PARTHA BANERJEE (Committee Member)
ANDREW SARANGAN (Committee Member)
87 p.
Electrical Engineering
Photodetector; Quantum tunneling effect; Metal-insulator-metal structure; responsivity; quantum confinement; dark current.

Recommended Citations

Citations

  • Li, L. (2013). Study of Metal-Insulator-Metal Diodes for Photodetection [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1367319217

    APA Style (7th edition)

  • Li, Li. Study of Metal-Insulator-Metal Diodes for Photodetection. 2013. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1367319217.

    MLA Style (8th edition)

  • Li, Li. "Study of Metal-Insulator-Metal Diodes for Photodetection." Master's thesis, University of Dayton, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1367319217

    Chicago Manual of Style (17th edition)

dayton1367319217
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© 2013, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.