← Search

Data · dataset · 2024

Fluence evolution of defects in α-SiO2 determined by ionoluminescence

Listed in ARP Research Data Repository

Luminescence is a very powerful tool to analyse various types of defects in a wide range of materials; it is often applied for silica, which is a broadly used material in photonics, microelectronics, nuclear energy industry, optoelectronics and other important technological applications.

Description

In this work, a single crystalline (0001) α-SiO2 (quartz) sample has been investigated by the ionoluminescence (IL) method. In this case, intense emitted light can be observed when a 2 MeV He+ beam reaches the quartz sample.

Three emission bands were found at 1.45 eV, 1.76 eV and 2.34 eV, the corresponding defects were identified as Si nanoclusters, non-bridging oxygen hole centers (NBOHC), and self-trapped excitons (STEs), respectively. The evolution of the defect related IL peaks was determined as a function of He+ irradiation fluence. To perform accurate data evaluation, the instrumental function of the applied IL set-up (collimator, optical fibers and spectrometer) was determined and taken into account.

Read the rest (1 more)

The importance of methodological issues in the IL measurement (including set-up, sample holder and proper beam settings) was also discussed. The described steps of system calibration and data evaluation are indispensable for IL spectrum analysis leading to detailed understanding of defect evolution taking place during the ion beam irradiation process.

Links

Topics

Stated by source
Physics
From keywords
Physics
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
ARP Research Data Repositoryhdl:21.15109/CONCORDA/N6ODFL13 d agoJSON v1
FieldAssertionExtractorEvidence
concepts[field].dataverse_subject:physicssource · repo researchdata huconnector:repo_researchdata_hu@1.0.0/subjects
concepts[field].local:field:physicsmapping · repo researchdata huconnector:repo_researchdata_hu@1.0.0/subjects
created_datesource · repo researchdata huconnector:repo_researchdata_hu@1.0.0
descriptionsource · repo researchdata huconnector:repo_researchdata_hu@1.0.0/description
publication_datesource · repo researchdata huconnector:repo_researchdata_hu@1.0.0
titlesource · repo researchdata huconnector:repo_researchdata_hu@1.0.0/name
updated_datesource · repo researchdata huconnector:repo_researchdata_hu@1.0.0
version_labelsource · repo researchdata huconnector:repo_researchdata_hu@1.0.0