Exploring the Band Structure of Wurtzite InAs Nanowires Using Photocurrent Spectroscopy

التفاصيل البيبلوغرافية
العنوان: Exploring the Band Structure of Wurtzite InAs Nanowires Using Photocurrent Spectroscopy
المؤلفون: Pournia, Seyyedesadaf, Linser, Samuel, Jnawali, Giriraj, Jackson, Howard E., Smith, Leigh M., Ameruddin, Amira, Caroff, Philippe, Wong-Leung, Jennifer, Tan, Hark Hoe, Jagadish, Chennupati, Joyce, Hannah J.
المصدر: Nano Research 2020
سنة النشر: 2019
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science
الوصف: We use polarized photocurrent spectroscopy in a nanowire device to investigate the band structure of hexagonal Wurtzite InAs. Signatures of optical transitions between four valence bands and two conduction bands are observed which are consistent with the symmetries expected from group theory. The ground state transition energy identified from photocurrent spectra is seen to be consistent with photoluminescence emitted from a cluster of nanowires from the same growth substrate. From the energies of the observed bands we determine the spin orbit and crystal field energies in Wurtzite InAs. This information is essential to the development of crystal phase engineering of this important III-V semiconductor.
Comment: 25 pages, 5 figures
نوع الوثيقة: Working Paper
DOI: 10.1007/s12274-020-2774-0
URL الوصول: http://arxiv.org/abs/1909.07488
رقم الأكسشن: edsarx.1909.07488
قاعدة البيانات: arXiv
الوصف
DOI:10.1007/s12274-020-2774-0