ACS applied materials & interfaces, volume 9, issue 15, pages 13293-13303
Single-Mode Lasing from “Giant” CdSe/CdS Core–Shell Quantum Dots in Distributed Feedback Structures
Lei Zhang
1
,
Chen Liao
1
,
Bihu Lv
2
,
Xinran Wang
2
,
Min Xiao
2
,
Ruilin Xu
1
,
Yufen Yuan
1
,
CHANGGUI LU
1
,
Yiping Cui
1
,
Jiayu Zhang
1
Publication type: Journal Article
Publication date: 2017-04-10
Journal:
ACS applied materials & interfaces
Q1
Q1
SJR: 2.058
CiteScore: 16.0
Impact factor: 8.3
ISSN: 19448244, 19448252
General Materials Science
Abstract
"Giant" semiconductor quantum dots (GQDs) have tremendous potential for applications in laser devices. Here, CdSe/CdS core-shell GQDs (11 monolayers) have been synthesized as lasing gain material. The photoluminescence decay of the GQD ensemble is single-exponential, and the two-photon absorption cross-section is above 105 GM. This article presents a versatile method for fabrication of CdSe/CdS GQD distributed feedback (DFB) lasers by laser interference ablation. A high-quality surface-relief grating structure can be readily created on the GQD thin films, and the relationship between laser beam intensity and surface modulation depth is studied. With appropriate periods, single-mode lasing emission has been detected from these devices under excitation wavelengths of 400 and 800 nm. The laser thresholds are as low as 0.028 and 1.03 mJ cm-2, with the lasing Q-factors of 709 and 586, respectively. Lasing operation is realized from the direct laser interference-ablated QD DFB structures for the first time.
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Zhang L. et al. Single-Mode Lasing from “Giant” CdSe/CdS Core–Shell Quantum Dots in Distributed Feedback Structures // ACS applied materials & interfaces. 2017. Vol. 9. No. 15. pp. 13293-13303.
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Zhang L., Liao C., Lv B., Wang X., Xiao M., Xu R., Yuan Y., LU C., Cui Y., Zhang J. Single-Mode Lasing from “Giant” CdSe/CdS Core–Shell Quantum Dots in Distributed Feedback Structures // ACS applied materials & interfaces. 2017. Vol. 9. No. 15. pp. 13293-13303.
Cite this
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TY - JOUR
DO - 10.1021/acsami.7b01669
UR - https://doi.org/10.1021/acsami.7b01669
TI - Single-Mode Lasing from “Giant” CdSe/CdS Core–Shell Quantum Dots in Distributed Feedback Structures
T2 - ACS applied materials & interfaces
AU - Zhang, Lei
AU - Liao, Chen
AU - Lv, Bihu
AU - Wang, Xinran
AU - Xiao, Min
AU - Xu, Ruilin
AU - Yuan, Yufen
AU - LU, CHANGGUI
AU - Cui, Yiping
AU - Zhang, Jiayu
PY - 2017
DA - 2017/04/10
PB - American Chemical Society (ACS)
SP - 13293-13303
IS - 15
VL - 9
SN - 1944-8244
SN - 1944-8252
ER -
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@article{2017_Zhang,
author = {Lei Zhang and Chen Liao and Bihu Lv and Xinran Wang and Min Xiao and Ruilin Xu and Yufen Yuan and CHANGGUI LU and Yiping Cui and Jiayu Zhang},
title = {Single-Mode Lasing from “Giant” CdSe/CdS Core–Shell Quantum Dots in Distributed Feedback Structures},
journal = {ACS applied materials & interfaces},
year = {2017},
volume = {9},
publisher = {American Chemical Society (ACS)},
month = {apr},
url = {https://doi.org/10.1021/acsami.7b01669},
number = {15},
pages = {13293--13303},
doi = {10.1021/acsami.7b01669}
}
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Zhang, Lei, et al. “Single-Mode Lasing from “Giant” CdSe/CdS Core–Shell Quantum Dots in Distributed Feedback Structures.” ACS applied materials & interfaces, vol. 9, no. 15, Apr. 2017, pp. 13293-13303. https://doi.org/10.1021/acsami.7b01669.