Optical properties of Si nanocrystals enhanced by ligands

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00554097" target="_blank" >RIV/68378271:_____/21:00554097 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-3-030-68222-4_1" target="_blank" >http://dx.doi.org/10.1007/978-3-030-68222-4_1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-68222-4_1" target="_blank" >10.1007/978-3-030-68222-4_1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optical properties of Si nanocrystals enhanced by ligands

Popis výsledku v původním jazyce

Compared to bulk silicon, silicon nanocrystals (Si-NCs) show modified properties, such as tunable emission and enhanced radiative rate, as a result of the quantum confinement, surface chemistry and environment. While the effect of quantum confinement is well understood and experimentally confirmed on the hydrogen-capped Si-NCs, the surface effects in Si-NC with other types of ligands can be very complex and hard to predict. In our work, we argue that the surface chemistry, be it ligands and/or shell, can be designed to further improve the radiative rate of the Si-NCs, beyond what is achievable by the quantum confinement alone. Our experimental work shows a number of effects that indicate that in many instances, the core and surface capping cannot be separated, and optical properties cannot be clearly interpreted as “extrinsic” (related to the surface capping agent) or “intrinsic” (related to the core only).

Název v anglickém jazyce

Optical properties of Si nanocrystals enhanced by ligands

Popis výsledku anglicky

Compared to bulk silicon, silicon nanocrystals (Si-NCs) show modified properties, such as tunable emission and enhanced radiative rate, as a result of the quantum confinement, surface chemistry and environment. While the effect of quantum confinement is well understood and experimentally confirmed on the hydrogen-capped Si-NCs, the surface effects in Si-NC with other types of ligands can be very complex and hard to predict. In our work, we argue that the surface chemistry, be it ligands and/or shell, can be designed to further improve the radiative rate of the Si-NCs, beyond what is achievable by the quantum confinement alone. Our experimental work shows a number of effects that indicate that in many instances, the core and surface capping cannot be separated, and optical properties cannot be clearly interpreted as “extrinsic” (related to the surface capping agent) or “intrinsic” (related to the core only).

Druh

C - Kapitola v odborné knize

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Silicon Photonics IV: Innovative Frontiers

ISBN

978-3-030-68221-7

Počet stran výsledku

62

Strana od-do

"Roč. 139 (2021)"

Počet stran knihy

512

Název nakladatele

Springer

Místo vydání

Cham

Kód UT WoS kapitoly

000671109300002