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Near-field study of carrier dynamics in InAs/GaAs quantum dots grown on InGaAs layers

Result description

InAs/GaAs quantum dots (QDs) with ordered structure, due to their peculiar properties, open new way to design novel semiconductor devices such as single-electron transistors or highly parallel computing architectures. The lateral quantum dot alignment achieved during the self-assembly process is not well understood heretofore. The reason is, that quantum structures are usually small and studied at low temperatures. Conversely, the Scanning near-field optical microscopy (SNOM) allows study nanometer detaails in the non-offensive manner, in the room temperature with high spatial and temporal resolution. The first results of near-field optical study on aligned QDs are presented.

Keywords

semiconductorInAs/GaAsquantum dotscarrier dynamicsoptical imaginglateral superresolutionnear-field optics

The result's identifiers

Alternative languages

  • Result language

    angličtina

  • Original language name

    Near-field study of carrier dynamics in InAs/GaAs quantum dots grown on InGaAs layers

  • Original language description

    InAs/GaAs quantum dots (QDs) with ordered structure, due to their peculiar properties, open new way to design novel semiconductor devices such as single-electron transistors or highly parallel computing architectures. The lateral quantum dot alignment achieved during the self-assembly process is not well understood heretofore. The reason is, that quantum structures are usually small and studied at low temperatures. Conversely, the Scanning near-field optical microscopy (SNOM) allows study nanometer detaails in the non-offensive manner, in the room temperature with high spatial and temporal resolution. The first results of near-field optical study on aligned QDs are presented.

  • Czech name

    Studium dynamiky nosičů kvantových tečkách InAs/GaAs na vrstvách InGaAs pomocí blízkého pole

  • Czech description

    Kvantové tečky InAs/GaAs s řízenou strukturou otevírají novou cestu k návrhu nových optoelektronických součástek jako jsou jednoelektronové tranzistory neby vysoce paralelní architektura počítačů. Příčné seřazení kvantových teček není dosud zcela objasněno, zejména z důvodu, že kvantové struktury musí být studovány při nízkých teplotách. Na druhou stranu SNOM umožní studovat nanometrické rozměry neofenzivním způsobem za pokojové teploty a to vše s vysokým prostorovým a časovým rozlišením. Článek přinášší první výsledky optických studií v blízkém poli kvantových teček.

Classification

  • Type

    Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JA - Electronics and optoelectronics

  • OECD FORD branch

Result continuities

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Materials Science Forum

  • ISSN

    0255-5476

  • e-ISSN

  • Volume of the periodical

    482

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    4

  • Pages from-to

    151-154

  • UT code for WoS article

  • EID of the result in the Scopus database