KŘÁPEK, Vlastimil, Petr KLENOVSKÝ a Tomáš ŠIKOLA. Type-I and Type-II Confinement in Quantum Dots: Excitonic Fine Structure. ACTA PHYSICA POLONICA A. Warsaw: POLISH ACAD SCIENCES INST PHYSICS, 2016, roč. 129, 1A, s. "A66"-"A69", 4 s. ISSN 0587-4246. Dostupné z: https://dx.doi.org/10.12693/APhysPolA.129.A-66. |
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@article{1339608, author = {Křápek, Vlastimil and Klenovský, Petr and Šikola, Tomáš}, article_location = {Warsaw}, article_number = {1A}, doi = {http://dx.doi.org/10.12693/APhysPolA.129.A-66}, keywords = {quantum dots; type-II bandalignment; excitonic fine structure; theory}, language = {eng}, issn = {0587-4246}, journal = {ACTA PHYSICA POLONICA A}, title = {Type-I and Type-II Confinement in Quantum Dots: Excitonic Fine Structure}, url = {http://przyrbwn.icm.edu.pl/APP/PDF/129/a129z1ap13.pdf}, volume = {129}, year = {2016} }
TY - JOUR ID - 1339608 AU - Křápek, Vlastimil - Klenovský, Petr - Šikola, Tomáš PY - 2016 TI - Type-I and Type-II Confinement in Quantum Dots: Excitonic Fine Structure JF - ACTA PHYSICA POLONICA A VL - 129 IS - 1A SP - "A66"-"A69" EP - "A66"-"A69" PB - POLISH ACAD SCIENCES INST PHYSICS SN - 05874246 KW - quantum dots KW - type-II bandalignment KW - excitonic fine structure KW - theory UR - http://przyrbwn.icm.edu.pl/APP/PDF/129/a129z1ap13.pdf L2 - http://przyrbwn.icm.edu.pl/APP/PDF/129/a129z1ap13.pdf N2 - e have theoretically studied type-I and type-II confinement in InAs quantum dots with GaAsSb capping layer. The character of the confinement can be adjusted by the Sb content. We have found that upon the transition from type-I to type-II confinement the hole wave functions change the topology from a compact shape to a two-segment shape, resulting in the complex changes in the exciton fine structure splitting with zero values at particular compositions. Additionally, a high exciton radiative recombination probability is preserved even in type-II. This allows to design strongly luminescent quantum dots with naturally low fine structure splitting, which could serve as sources of entangled photon pairs for quantum communication. ER -
KŘÁPEK, Vlastimil, Petr KLENOVSKÝ a Tomáš ŠIKOLA. Type-I and Type-II Confinement in Quantum Dots: Excitonic Fine Structure. \textit{ACTA PHYSICA POLONICA A}. Warsaw: POLISH ACAD SCIENCES INST PHYSICS, 2016, roč.~129, 1A, s.~''A66''-''A69'', 4 s. ISSN~0587-4246. Dostupné z: https://dx.doi.org/10.12693/APhysPolA.129.A-66.
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