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Modeling Temperature-Dependent Photoluminescence Dynamics of Colloidal CdS Quantum Dots Using Long Short-Term Memory (LSTM) Networks

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Publisher MDPI
Date 2024 Oct 26
PMID 39459761
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Abstract

This study addresses the challenge of modeling temperature-dependent photoluminescence (PL) in CdS colloidal quantum dots (QD), where PL properties fluctuate with temperature, complicating traditional modeling approaches. The objective is to develop a predictive model capable of accurately capturing these variations using Long Short-Term Memory (LSTM) networks, which are well suited for managing temporal dependencies in time-series data. The methodology involved training the LSTM model on experimental time-series data of PL intensity and temperature. Through numerical simulation, the model's performance was assessed. Results demonstrated that the LSTM-based model effectively predicted PL trends under different temperature conditions. This approach could be applied in optoelectronics and quantum dot-based sensors for enhanced forecasting capabilities.

References
1.
Zheng J, Huang F, Yin S, Wang Y, Lin Z, Wu X . Correlation between the photoluminescence and oriented attachment growth mechanism of CdS quantum dots. J Am Chem Soc. 2010; 132(28):9528-30. DOI: 10.1021/ja101848w. View

2.
Ye Z, Lin X, Wang N, Zhou J, Zhu M, Qin H . Phonon-assisted up-conversion photoluminescence of quantum dots. Nat Commun. 2021; 12(1):4283. PMC: 8277828. DOI: 10.1038/s41467-021-24560-4. View

3.
Lanjewar M, Panchbhai K, Patle L . Fusion of transfer learning models with LSTM for detection of breast cancer using ultrasound images. Comput Biol Med. 2024; 169:107914. DOI: 10.1016/j.compbiomed.2023.107914. View

4.
Gogoi H, Pathak S, Dasgupta S, Panchakarla L, Nath S, Datta A . Exciton Dynamics in Colloidal CdS Quantum Dots with Intense and Stokes Shifted Photoluminescence in a Single Decay Channel. J Phys Chem Lett. 2022; :6770-6776. DOI: 10.1021/acs.jpclett.2c01623. View

5.
Biswas B . Study of Photophysical Properties of Thiol-capped CdS Quantum Dots Doped with Gold Nanoparticles. J Fluoresc. 2023; 34(2):523-530. DOI: 10.1007/s10895-023-03288-y. View