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Stuchlikova L, Sciana B, Kosa A, Matus M, Benko P, Marek J, Donoval M, Dawidowski W, Radziewicz D, Weis M. Evaluation of Effective Mass in InGaAsN/GaAs Quantum Wells Using Transient Spectroscopy. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7621. [PMID: 36363211 PMCID: PMC9658958 DOI: 10.3390/ma15217621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/20/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Transient spectroscopies are sensitive to charge carriers released from trapping centres in semiconducting devices. Even though these spectroscopies are mostly applied to reveal defects causing states that are localised in the energy gap, these methods also sense-charge from quantum wells in heterostructures. However, proper evaluation of material response to external stimuli requires knowledge of material properties such as electron effective mass in complex structures. Here we propose a method for precise evaluation of effective mass in quantum well heterostructures. The infinite well model is successfully applied to the InGaAsN/GaAs quantum well structure and used to evaluate electron effective mass in the conduction and valence bands. The effective mass m/m0 of charges from the conduction band was 0.093 ± 0.006, while the charges from the valence band exhibited an effective mass of 0.122 ± 0.018.
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Affiliation(s)
- Lubica Stuchlikova
- Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovicova 3, 81219 Bratislava, Slovakia
| | - Beata Sciana
- Faculty of Electronics, Photonics and Microsystems, Wrocław University of Technology, 11/17 Janiszewskiego St., 50-372 Wrocław, Poland
| | - Arpad Kosa
- Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovicova 3, 81219 Bratislava, Slovakia
| | - Matej Matus
- Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovicova 3, 81219 Bratislava, Slovakia
| | - Peter Benko
- Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovicova 3, 81219 Bratislava, Slovakia
| | - Juraj Marek
- Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovicova 3, 81219 Bratislava, Slovakia
| | - Martin Donoval
- Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovicova 3, 81219 Bratislava, Slovakia
| | - Wojciech Dawidowski
- Faculty of Electronics, Photonics and Microsystems, Wrocław University of Technology, 11/17 Janiszewskiego St., 50-372 Wrocław, Poland
| | - Damian Radziewicz
- Faculty of Electronics, Photonics and Microsystems, Wrocław University of Technology, 11/17 Janiszewskiego St., 50-372 Wrocław, Poland
| | - Martin Weis
- Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Ilkovicova 3, 81219 Bratislava, Slovakia
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