Addressing the Fundamental Electronic Properties of Wurtzite GaAs Nanowires by High-Field Magneto-Photoluminescence Spectroscopy
作者： Marta De Luca , Silvia Rubini , Marco Felici , Alan Meaney , Peter C. M. Christianen
DOI: 10.1021/ACS.NANOLETT.7B02189
关键词:
摘要: At ambient conditions, GaAs forms in the zincblende (ZB) phase with notable exception of nanowires (NWs) where wurtzite (WZ) lattice is also found. The WZ formation both a complication to be dealt and potential feature exploited, for example, NW homostructures wherein ZB phases alternate controllably thus band gap engineering achieved. Despite intense studies, some fundamental electronic properties NWs are not fully assessed yet. In this work, by using photoluminescence (PL) under high magnetic fields (B = 0–28 T), we measure diamagnetic shift, ΔEd, Zeeman splitting free exciton formed core–shell InGaAs–GaAs NWs. quantitative analysis ΔEd at different temperatures (T 4.2 77 K) directions B allows determination reduced mass, μexc, planes perpendicular (μexc 0.052 m0, m0 electron mass vacuum) parallel 0.057 m0) ĉ ax...
acs.org
core.ac.uk 
sci-hub.se 参考文章(44)
Amrit De, Craig E. Pryor, Optical dielectric functions of wurtzite III-V semiconductors Physical Review B. ,vol. 85, pp. 125201- ,(2012) , 10.1103/PHYSREVB.85.125201
Faustino Martelli, Giacomo Priante, Silvia Rubini, Photoluminescence of GaAs nanowires at an energy larger than the zincblende band-gap: dependence on growth parameters Semiconductor Science and Technology. ,vol. 30, pp. 055020- ,(2015) , 10.1088/0268-1242/30/5/055020
Pierre Corfdir, Barbara Van Hattem, Emanuele Uccelli, Sònia Conesa-Boj, Pierre Lefebvre, Anna Fontcuberta i Morral, Richard T. Phillips, Three-Dimensional Magneto-Photoluminescence as a Probe of the Electronic Properties of Crystal-Phase Quantum Disks in GaAs Nanowires Nano Letters. ,vol. 13, pp. 5303- 5310 ,(2013) , 10.1021/NL4028186
G. Pettinari, A. Polimeni, F. Masia, R. Trotta, M. Felici, M. Capizzi, T. Niebling, W. Stolz, P. J. Klar, Electron Mass in Dilute Nitrides and its Anomalous Dependence on Hydrostatic Pressure Physical Review Letters. ,vol. 98, pp. 146402- ,(2007) , 10.1103/PHYSREVLETT.98.146402
Bernt Ketterer, Martin Heiss, Emanuele Uccelli, Jordi Arbiol, Anna Fontcuberta i Morral, Untangling the Electronic Band Structure of Wurtzite GaAs Nanowires by Resonant Raman Spectroscopy ACS Nano. ,vol. 5, pp. 7585- 7592 ,(2011) , 10.1021/NN202585J
I. Broser, M. Rosenzweig, Determination of excitonic parameters of the A polariton of CdS from magnetoreflectance spectroscopy Physical Review B. ,vol. 22, pp. 2000- 2007 ,(1980) , 10.1103/PHYSREVB.22.2000
Al. L. Efros, M. Rosen, M. Kuno, M. Nirmal, D. J. Norris, M. Bawendi, Band-edge exciton in quantum dots of semiconductors with a degenerate valence band: Dark and bright exciton states Physical Review B. ,vol. 54, pp. 4843- 4856 ,(1996) , 10.1103/PHYSREVB.54.4843
Stephan Furthmeier, Florian Dirnberger, Joachim Hubmann, Benedikt Bauer, Tobias Korn, Christian Schüller, Josef Zweck, Elisabeth Reiger, Dominique Bougeard, Long exciton lifetimes in stacking-fault-free wurtzite GaAs nanowires Applied Physics Letters. ,vol. 105, pp. 222109- ,(2014) , 10.1063/1.4903482
E. Johnston-Halperin, D. D. Awschalom, S. A. Crooker, Al. L. Efros, M. Rosen, X. Peng, A. P. Alivisatos, Spin spectroscopy of dark excitons in CdSe quantum dots to 60 T Physical Review B. ,vol. 63, pp. 205309- ,(2001) , 10.1103/PHYSREVB.63.205309
Abderrezak Belabbes, Christian Panse, Jürgen Furthmüller, Friedhelm Bechstedt, Electronic bands of III-V semiconductor polytypes and their alignment Physical Review B. ,vol. 86, pp. 075208- ,(2012) , 10.1103/PHYSREVB.86.075208