Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 2938-2942 |
| Seitenumfang | 5 |
| Fachzeitschrift | Physics Letters: A |
| Jahrgang | 383 |
| Ausgabenummer | 24 |
| Publikationsstatus | Veröffentlicht - 22 Aug. 2019 |
Abstract
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Physics Letters: A, Jahrgang 383, Nr. 24, 22.08.2019, S. 2938-2942.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Energy band modulation of GaAs/Al0.26Ga0.74As quantum well in 3D self-assembled nanomembranes
AU - Zhang, Fei
AU - Huang, Gao Shan
AU - Nie, Xiao Fei
AU - Cao, Xin
AU - Ma, Zhe
AU - Ding, Fei
AU - Di, Zeng Feng
AU - Zhen, Hong Lou
AU - Mei, Yong Feng
N1 - Funding information: This work was financially supported by the National Natural Science Foundation of China (Nos. 61728501, 61805042, U1632115, and 51711540298), the China Postdoctoral Science Foundation (No. 2018M632014), the Science and Technology Commission of Shanghai Municipality (Nos. 18ZR1405100 and 17JC1401700), the Program of Shanghai Academic/Technology Research Leader (Nos. 16XD1404200 and 19XD1400600) and the Changjiang Young Scholars Program of China.
PY - 2019/8/22
Y1 - 2019/8/22
N2 - In this study, we investigate the modulation of energy band in 3D self-assembled nanomembranes containing GaAs/Al0.26Ga0.74As quantum wells (QWs). Photoluminescence (PL) characterizations demonstrate that the self-assembled structures have different optical transition properties and the modulation of the energy band is thus realized. Detailed spectral analyses disclose that the small strain change in structures with different curvatures cannot cause remarkable change in energy bands in Al0.26Ga0.74As layer. On the other hand, the optical transitions of GaAs QW layer is influenced by the strain evolution in term of light emission intensity. We also find the first order Stark effect in rolled-up nanomembrane with diameter of 150 μm, which is closely connected with the coupling effect between the deformation potential and the piezoelectric potential. Our work may pave a way for the fabrication of high performance rolled-QW infrared photo-detectors.
AB - In this study, we investigate the modulation of energy band in 3D self-assembled nanomembranes containing GaAs/Al0.26Ga0.74As quantum wells (QWs). Photoluminescence (PL) characterizations demonstrate that the self-assembled structures have different optical transition properties and the modulation of the energy band is thus realized. Detailed spectral analyses disclose that the small strain change in structures with different curvatures cannot cause remarkable change in energy bands in Al0.26Ga0.74As layer. On the other hand, the optical transitions of GaAs QW layer is influenced by the strain evolution in term of light emission intensity. We also find the first order Stark effect in rolled-up nanomembrane with diameter of 150 μm, which is closely connected with the coupling effect between the deformation potential and the piezoelectric potential. Our work may pave a way for the fabrication of high performance rolled-QW infrared photo-detectors.
KW - Energy band
KW - Nanomembrane
KW - Quantum well
KW - Stark effect
KW - Strain
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85068225113&origin=inward
U2 - 10.15488/5472
DO - 10.15488/5472
M3 - Article
AN - SCOPUS:85068225113
VL - 383
SP - 2938
EP - 2942
JO - Physics Letters: A
JF - Physics Letters: A
SN - 0375-9601
IS - 24
ER -