Norhayati Sabani
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Preferred name
Norhayati Sabani
Official Name
Norhayati, Sabani
Alternative Name
Sabani, N.
Sabani, Norhayati
Sabani, Norhayati Bt
Norhayati, S.
Sabani, Norhayati Binti
Main Affiliation
Scopus Author ID
54785178400
Researcher ID
AAB-8243-2022

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  • Publication
    Photoluminescence measurement of triplet sensitizer-emitter solution using a customized 3D-printed sample holder
    ( 2024-06)
    Kelvin Voon Yan Jie
    ;
    Safizan Shaari
    ;
    Mohd Fairus Ahmad
    ;
    Nor Farhani Zakaria
    ;
    Norhayati Sabani
    This study explores the photoluminescence (PL) measurement of triplet sensitizer-emitter (TSE) solutions using a custom 3D-printed sample holder, within the context of triplet-triplet annihilation based molecular photon upconversion (TTA-UC) systems targeting the Vis-to-UV spectral region. TTA-UC converts low-energy visible photons to higher-energy ultraviolet (UV) photons, holding promise for solar energy harvesting and photonics applications. Two TSE couples, 4CzIPN/TP and 4CzIPN/QP, were investigated, and their upconverted fluorescence spectra showed peaks at 344 nm and 354 nm / 370 nm, respectively, confirming efficient upconversion capabilities. The 3D-printed sample holder facilitated reproducible PL measurements, enabling the calculation of quantum yields (ΦUC). The 4CzIPN/TP and 4CzIPN/QP couples exhibited low quantum yields (0.028% and 0.043%, respectively), suggesting the need for improved deoxygenation methods to enhance the triplet-triplet annihilation process and overall quantum efficiency. Despite modest yields, successful UV upconverted fluorescence observation underscores the feasibility of the Vis-to-UV TTA-UC system. This study provides insights into TTA-UC optimization and demonstrates the utility of the 3D-printed sample holder for affordable and precise PL measurements, paving the way for future advancements in photonics and solar energy applications.