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Simulation of Time-Resolved Photoluminescence to Distinguish Bulk and Interface Recombination in Cd(Se,Te) Photovoltaic Devices

Fox, Jordan Ryan
http://orcid.org/0000-0002-0420-7637
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1656527333395857

Abstract Details

2022, Master of Science (MS), Bowling Green State University, Physics.
CdTe thin-film solar cells have become popular due to low manufacturing cost, but this benefit comes at the expense of cell performance. While performance is improving, CdTe is still plagued by open circuit voltage (VOC ) losses. These losses are attributed to interface and bulk recombination, but with current methods, evaluation of these properties is convoluted. This thesis reports on TRPL simulations on a Cd(Se,Te) double heterostructures (DHs), a semiconductor material that acts as the absorber layer in commercially relevant thin-film solar cells. TRPL was simulated on Alumina/Cd(Se,Te)/Alumina DHs, where alumina acts as an excellent surface passivation agent for Cd(Se,Te). Simulations were conducted with COMSOL Multiphysics®, where time-dependent charge transport equations and Poisson’s equation were numerically solved using the finite element method. Models were created to investigate the effects of bulk, surface recombination, mobility, and material thickness. These models used single photon excitation (1PE) and two-photon excitation (2PE) to examine the surface and bulk of the material. Results were analyzed to develop a combined experimental and numerical simulation procedure to distinguish and quantify bulk and interface recombination mechanisms in Cd(Se,Te) photovoltaic devices. This general approach can be applied to other thin film solar cells to help determine where significant VOC losses are occurring.
Marco Nardone (Advisor)
Liangfeng Sun (Committee Member)
Haowen Xi (Committee Member)
76 p.
Physics
Numerical Simulation; Time-Resolved Photoluminescence; TRPL; CdSeTe; Double Heterostructure; Photovoltaic

Recommended Citations

Citations

  • Fox, J. R. (2022). Simulation of Time-Resolved Photoluminescence to Distinguish Bulk and Interface Recombination in Cd(Se,Te) Photovoltaic Devices [Master's thesis, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1656527333395857

    APA Style (7th edition)

  • Fox, Jordan. Simulation of Time-Resolved Photoluminescence to Distinguish Bulk and Interface Recombination in Cd(Se,Te) Photovoltaic Devices. 2022. Bowling Green State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1656527333395857.

    MLA Style (8th edition)

  • Fox, Jordan. "Simulation of Time-Resolved Photoluminescence to Distinguish Bulk and Interface Recombination in Cd(Se,Te) Photovoltaic Devices." Master's thesis, Bowling Green State University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1656527333395857

    Chicago Manual of Style (17th edition)

bgsu1656527333395857
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© 2022, all rights reserved.
This open access ETD is published by Bowling Green State University and OhioLINK.