Numerical Analysis of Time Resolved Photoluminescence for Alumina/Cd(Se,Te) Double Heterostructures

Jordan Fox; Darius Kuciauskas; David Albin; Marco Nardone

doi:10.1109/PVSC43889.2021.9518978

Numerical Analysis of Time Resolved Photoluminescence for Alumina/Cd(Se,Te) Double Heterostructures

Jordan Fox, Darius Kuciauskas, David Albin, Marco Nardone

Bowling Green State University

Research output: Contribution to conference › Paper › peer-review

Abstract

Al2O3 has demonstrated excellent Cd(Se, Te) surface passivation. In this work, recombination mechanisms were investigated by comparing simulations of time resolved photoluminescence (TRPL) to PL decay data (320 ns effective lifetime) for Al2O3/Cd(Se, Te)/Al2O3 double heterostructures. Models were employed to investigate the effects of bulk and surface recombination, electric fields, mobility, and doping by simulating intensity-dependent single- (1PE) and two-photon excitation (2PE) TRPL. 2PE simulations replicate decay behavior while 1PE simulations require attention to charge redistribution. Various coupled mechanisms cannot be distinguished from PL decay data alone. Complementary measurements are required to constrain the model parameters and isolate mechanisms.

Original language	American English
Pages	551-556
Number of pages	6
DOIs	https://doi.org/10.1109/PVSC43889.2021.9518978 https://doi.org/10.1109/PVSC43889.2021.9518978
State	Published - 20 Jun 2021
Event	48th IEEE Photovoltaic Specialists Conference, PVSC 2021 - Fort Lauderdale, United States Duration: 20 Jun 2021 → 25 Jun 2021

Conference

Conference	48th IEEE Photovoltaic Specialists Conference, PVSC 2021
Country/Territory	United States
City	Fort Lauderdale
Period	20/06/21 → 25/06/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

NREL Publication Number

NREL/CP-5K00-80296

Keywords

CdTe
passivation
simulation
TRPL

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Fox, J., Kuciauskas, D., Albin, D., & Nardone, M. (2021). Numerical Analysis of Time Resolved Photoluminescence for Alumina/Cd(Se,Te) Double Heterostructures. 551-556. Paper presented at 48th IEEE Photovoltaic Specialists Conference, PVSC 2021, Fort Lauderdale, United States. https://doi.org/10.1109/PVSC43889.2021.9518978, https://doi.org/10.1109/PVSC43889.2021.9518978

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abstract = "Al2O3 has demonstrated excellent Cd(Se, Te) surface passivation. In this work, recombination mechanisms were investigated by comparing simulations of time resolved photoluminescence (TRPL) to PL decay data (320 ns effective lifetime) for Al2O3/Cd(Se, Te)/Al2O3 double heterostructures. Models were employed to investigate the effects of bulk and surface recombination, electric fields, mobility, and doping by simulating intensity-dependent single- (1PE) and two-photon excitation (2PE) TRPL. 2PE simulations replicate decay behavior while 1PE simulations require attention to charge redistribution. Various coupled mechanisms cannot be distinguished from PL decay data alone. Complementary measurements are required to constrain the model parameters and isolate mechanisms.",

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author = "Jordan Fox and Darius Kuciauskas and David Albin and Marco Nardone",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 48th IEEE Photovoltaic Specialists Conference, PVSC 2021 ; Conference date: 20-06-2021 Through 25-06-2021",

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doi = "10.1109/PVSC43889.2021.9518978",

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Fox, J, Kuciauskas, D, Albin, D & Nardone, M 2021, 'Numerical Analysis of Time Resolved Photoluminescence for Alumina/Cd(Se,Te) Double Heterostructures', Paper presented at 48th IEEE Photovoltaic Specialists Conference, PVSC 2021, Fort Lauderdale, United States, 20/06/21 - 25/06/21 pp. 551-556. https://doi.org/10.1109/PVSC43889.2021.9518978, https://doi.org/10.1109/PVSC43889.2021.9518978

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T1 - Numerical Analysis of Time Resolved Photoluminescence for Alumina/Cd(Se,Te) Double Heterostructures

AU - Fox, Jordan

AU - Kuciauskas, Darius

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AU - Nardone, Marco

PY - 2021/6/20

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N2 - Al2O3 has demonstrated excellent Cd(Se, Te) surface passivation. In this work, recombination mechanisms were investigated by comparing simulations of time resolved photoluminescence (TRPL) to PL decay data (320 ns effective lifetime) for Al2O3/Cd(Se, Te)/Al2O3 double heterostructures. Models were employed to investigate the effects of bulk and surface recombination, electric fields, mobility, and doping by simulating intensity-dependent single- (1PE) and two-photon excitation (2PE) TRPL. 2PE simulations replicate decay behavior while 1PE simulations require attention to charge redistribution. Various coupled mechanisms cannot be distinguished from PL decay data alone. Complementary measurements are required to constrain the model parameters and isolate mechanisms.

AB - Al2O3 has demonstrated excellent Cd(Se, Te) surface passivation. In this work, recombination mechanisms were investigated by comparing simulations of time resolved photoluminescence (TRPL) to PL decay data (320 ns effective lifetime) for Al2O3/Cd(Se, Te)/Al2O3 double heterostructures. Models were employed to investigate the effects of bulk and surface recombination, electric fields, mobility, and doping by simulating intensity-dependent single- (1PE) and two-photon excitation (2PE) TRPL. 2PE simulations replicate decay behavior while 1PE simulations require attention to charge redistribution. Various coupled mechanisms cannot be distinguished from PL decay data alone. Complementary measurements are required to constrain the model parameters and isolate mechanisms.

KW - CdTe

KW - passivation

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T2 - 48th IEEE Photovoltaic Specialists Conference, PVSC 2021

Y2 - 20 June 2021 through 25 June 2021

ER -

Numerical Analysis of Time Resolved Photoluminescence for Alumina/Cd(Se,Te) Double Heterostructures

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Keywords

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