Probing the photophysics of semiconductor nanomaterials using optical pump-terahertz probe spectroscopy: from nanowires to perovskites

Hannah J. Joyce; Lissa Eyre; Stephanie O. Adeyemo; Sarwat A. Baig; Jessica L. Boland; Christopher L. Davies; Michael B. Johnston; Felix Deschler; H. Hoe Tan; C. Jagadish

doi:10.1117/12.2320720

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7 September 2018 Probing the photophysics of semiconductor nanomaterials using optical pump-terahertz probe spectroscopy: from nanowires to perovskites

Hannah J. Joyce, Lissa Eyre, Stephanie O. Adeyemo, Sarwat A. Baig, Jessica L. Boland, Christopher L. Davies, Michael B. Johnston, Felix Deschler, H. Hoe Tan, C. Jagadish

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Proceedings Volume 10724, Physical Chemistry of Semiconductor Materials and Interfaces XVII; 107240F (2018) https://doi.org/10.1117/12.2320720
Event: SPIE Nanoscience + Engineering, 2018, San Diego, California, United States

Abstract

Optical pump-terahertz probe spectroscopy is a powerful contact-free technique for probing the electronic properties of novel nanomaterials and their response to photoexcitation. This technique can measure charge carrier transport and dynamics with sub-picosecond temporal resolution. Electrical conductivity, charge carrier lifetimes, mobilities, dopant concentrations and surface recombination velocities can be measured with high accuracy and with considerably higher throughput than achievable with traditional contact-based techniques. We describe how terahertz spectroscopy is revealing the fascinating properties and guiding the development of a number of promising semiconductor materials, with particular emphasis on III-V semiconductor nanowires and devices.

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Hannah J. Joyce, Lissa Eyre, Stephanie O. Adeyemo, Sarwat A. Baig, Jessica L. Boland, Christopher L. Davies, Michael B. Johnston, Felix Deschler, H. Hoe Tan, and C. Jagadish "Probing the photophysics of semiconductor nanomaterials using optical pump-terahertz probe spectroscopy: from nanowires to perovskites", Proc. SPIE 10724, Physical Chemistry of Semiconductor Materials and Interfaces XVII, 107240F (7 September 2018); https://doi.org/10.1117/12.2320720

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