Zobrazeno 1 - 10
of 10
pro vyhledávání: '"TaeGi Lee"'
Autor:
TaeGi Lee, Kazushi Enomoto, Kazuma Ohshiro, Daishi Inoue, Tomoka Kikitsu, Kim Hyeon-Deuk, Yong-Jin Pu, DaeGwi Kim
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
Designing quantum dot superlattices remains a challenge. Here, the authors present CdTe quantum dot superlattices via the layer-by-layer assembly and verify the miniband formation by measuring the excitation energy the dependence of the photoluminesc
Externí odkaz:
https://doaj.org/article/87e963e4aebb48e19b45d580c364f00a
Publikováno v:
Bulletin of the Chemical Society of Japan. 94(12):2880-2885
During the synthesis of CdTe quantum dots (QDs) by the hydrothermal method, a CdS shell layer is naturally formed by the thermal decomposition of thiol ligands, and CdTe/CdS core/shell QDs are produced. Herein, we investigate the selective synthesis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ce96489963d4d99f671e6367d6f9284
https://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_13480634-94-12-2880
https://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_13480634-94-12-2880
Autor:
Hirotsugu Kobayashi, Kosuke Sato, Yusuke Okuaki, TaeGi Lee, Tomohiro Morishita, Hiromasa Goto, Naohiro Kuze
Publikováno v:
Applied Physics Letters. 122:101103
We fabricated sub-230-nm (far UV-C) light emitting diodes (LEDs) on a single-crystal AlN substrate. With 20 quantum well cycles implemented to enhance carrier injection into the active layers, over 1-mW output power (1.4 and 3.1 mW for 226- and 229-n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4168b80c9ae96d204b9279afd44b52d2
https://doi.org/10.1063/5.0139970
https://doi.org/10.1063/5.0139970
Autor:
Kazuma Ohshiro, Tomoka Kikitsu, Daishi Inoue, Kim Hyeon-Deuk, DaeGwi Kim, Yong-Jin Pu, TaeGi Lee, Kazushi Enomoto
Publikováno v:
Nature Communications
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
共同研究グループは、Layer-by-layer法により「半導体量子ドット超格子」を作製するとともに、面内・積層方向の量子ドット間距離を制御することで量子共鳴の次元制御に成功しました。
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8c9d82c693a995c5a3c1f5176e467a6
https://doi.org/10.1038/s41467-020-19337-0
https://doi.org/10.1038/s41467-020-19337-0
Publikováno v:
Advanced Optical Materials. 10:2102781
The formation of minibands in quantum dot (QD) superlattices (SLs) dramatically increases the mobility of carriers, giving a new way to apply QDs for optoelectronic devices. In previous studies on QDSLs, only a few studies have investigated the tempe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3de057370ee58f7f22823dacd0fbbc89
https://doi.org/10.1002/adom.202102781
https://doi.org/10.1002/adom.202102781
Publikováno v:
Current Applied Physics. 18:S14-S20
Quantum dot (QD) superlattices have the potential to provide new optical properties and functions based on interactions between adjacent QDs. Two types of interactions occur between the QDs: energy transfer (ET) from small-sized QDs to large QDs and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a77fc78da00f8c8a5ed2182908d58e08
https://doi.org/10.1016/j.cap.2017.11.012
https://doi.org/10.1016/j.cap.2017.11.012
Publikováno v:
Physical Chemistry Chemical Physics. 20(17):11954-11958
We investigated the effects of surface modification on the defect-related photoluminescence (PL) band in colloidal CdS quantum dots (QDs). A size-selective photoetching process and a surface modification technique with a Cd(OH)2 layer enabled the pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9be9649dd5f2924fdccff6698fc1b949
https://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_14639084-20-17-11954
https://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_14639084-20-17-11954
Publikováno v:
Journal of Physics: Conference Series. 1220:012028
Herein, we investigated the preparation and optical properties of water-soluble CdSe quantum dots (QDs). CdSe QDs with a narrow size distribution were hydrothermally prepared by reacting Cd2+ with NaHSe in the presence of N-acetyl-L-cysteine as ligan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ec5c3ec532994b68dc28f56a79ba409
https://doi.org/10.1088/1742-6596/1220/1/012028
https://doi.org/10.1088/1742-6596/1220/1/012028
Publikováno v:
Journal of Physics: Conference Series. 1220:012029
We investigated the size dependence of band-edge photoluminescence (PL) dynamics for CdS quantum dots (QDs). The temperature dependence of the PL-decay profiles of CdS QDs with an average diameter of 3.7–6.0 nm was measured. The PL-decay profiles b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7d6a052b49741590f76471618f22f21
https://doi.org/10.1088/1742-6596/1220/1/012029
https://doi.org/10.1088/1742-6596/1220/1/012029
Publikováno v:
Journal of Physics: Conference Series; 2019, Vol. 1220 Issue 1, p1-1, 1p