Impact of the Surface Recombination on the Thermal Properties for GaN-Based <i>μ</i>LEDs

Jia, Ya; Chu, Chunshuang; Hang, Sheng; Chen, Yongfei; Zhang, Yonghui; Zhang, Zi Hui

doi:10.1109/lpt.2023.3298842

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IEEE Photon. Technol. Lett.

2023

DOI: 10.1109/lpt.2023.3298842

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Impact of the Surface Recombination on the Thermal Properties for GaN-Based μLEDs

Ya Jia

Chunshuang Chu

Sheng Hang

et al.

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“…Here, the experimental value of t ) is the function of effective t ( eff t ) that depends on bulk t ( bulk t ), , m and SRV of front and back surfaces[57][58][59]. Surface electron/hole lifetime ( surf p n D varies the t optimum[54,62].…”

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confidence: 99%

Establishment of Justified Parameter Optimization Sequence for obtaining Maximum Solar Cell Efficiency

Bagade,

Patel,

Malik

et al. 2023

Phys. Scr.

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This paper questions the validity of t-NA/D-Nt technique for solar cell optimization and establishes the scientifically and experimentally-justified NA/D-Nt-t parameter optimization sequence for the same. Fundamental mathematical formulations considering numerous physical perspectives are presented for scientific justification of newly proposed optimization procedure. This is followed by an in-depth comprehensive analysis on sequence of parameter optimization applied in numerous widely-implemented solar cell fabrication techniques. It is found that, in each fabrication technique, the same optimization sequence of NA/D-Nt-t is implemented. Along with this, simulation study of sample solar cell is presented for further analysis of our conceptualization. It is identified that the time at which initial values of NA/D and Nt are replaced by the optimized ones to convert the initial solar cell to an optimized one, the value of absorber thickness at which solar cell produces maximum yield also changes. It was observed that NA/D-Nt-t optimization sequence increased device efficiency from 6.97% to 17.05% (144.6% increment) as compared to 55.8% increment from 6.97% to 10.86% in case of conventional t-NA/D-Nt optimization sequence. Moreover, only the NA/D-Nt-t approach produced EQE graph that matches with the experimentally-observed EQE curves of device. Hence, the newly proposed scientifically and experimentally-justified NA/D-Nt-t optimization sequence proposed for first time in this paper, truly optimizes solar cell device so that it offers maximum-possible efficiency reliably.

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mentioning

confidence: 99%

Establishment of Justified Parameter Optimization Sequence for obtaining Maximum Solar Cell Efficiency

Bagade,

Patel,

Malik

et al. 2023

Phys. Scr.

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Impact of the Surface Recombination on the Thermal Properties for GaN-Based μLEDs

Cited by 1 publication

References 23 publications

Establishment of Justified Parameter Optimization Sequence for obtaining Maximum Solar Cell Efficiency

Establishment of Justified Parameter Optimization Sequence for obtaining Maximum Solar Cell Efficiency

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