Lifetime improvement in silicon wafers using weak magnetic fields

Kuryliuk, A. N.; Steblenko, L. P.; Nadtochiy, Andriy; Korotchenkov, О. A.

doi:10.1016/j.mssp.2017.03.032

Cited by 2 publications

(3 citation statements)

References 33 publications

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“…Dn is the electron's intrinsic diffusion coefficient δ(x) is excess minority carrier density in the base (g) Ê(x) is the electric field originating from carrier concentration gradient along the base (g) me is the electron mass T is the absolute temperature τn is the charge carrier lifetime The magnetic field helps to reduce electron-hole recombination rate for the silicon crystal, while increasing charge carrier lifetime τn [20,36,37] and thus consequently increasing Dn [38] and electric voltage-current, respectively.…”

Section: Magnetic Field Sourcementioning

confidence: 99%

“…Weak dc magnetic fields (0.17 T) increased the free carrier lifetime in Si wafers, which was thought to be convincing evidence of the metal impurity gettering effect. This processing was found to improve carrier lifetimes by up to a factor of 2, from about 3 μs to 7 μs in silicon wafers [24]. The effect of magnetic field on the photocurrent generation of organic solar cells, was investigated.…”

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confidence: 99%

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Effects of intensity of magnetic field generated by neodymium permanent magnet sheets on electrical characteristics of monocrystalline silicon solar cell

Panmuang

Photong

2021

IJEECS

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<span>In this research, the effects of magnetic field intensity on electrical characteristics of a monocrystalline silicon solar cell were investigated. The experimental test-rig under Standard Test Condition was set up and tested to observe the respective effects. The electrical characteristics in terms of current-voltage-power curves, critical solar cell parameters and fill factor were then examined and analyzed. The outcome of this study demonstrates that the external magnetic field has a positive impact on electrical parameters, the experimental results showed that applying magnetic intensity of 60-260mT significantly affected the electrical characteristics of the cell; i.e., maximized cell current, voltage and power by 12.20, 7.12 and 23.60%, respectively. In addition, this positive impact consequencely happened on the i-v and p-v electrical characteristics curves of the solar cell; reflected by 3.69% increasing in the fill factor. </span>

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Section: Magnetic Field Sourcementioning

confidence: 99%

mentioning

confidence: 99%

Effects of intensity of magnetic field generated by neodymium permanent magnet sheets on electrical characteristics of monocrystalline silicon solar cell

Panmuang

Photong

2021

IJEECS

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“…Magnetic field measurements are widely applied in fields such as fundamental physics discipline, aerospace engineering, the modification of semiconductor compounds, and biomagnetic signal tests [1][2][3][4][5], wherein biomagnetic signal measurement is an essential branch of future medical development [6]. In recent years, commercial magnetocardiography (MCG) and magnetoencephalography (MEG) test instruments have emerged, and these signals belong to low-frequency and ultraweak magnetic signals [7].…”

Section: Introductionmentioning

confidence: 99%

Analytical model and precise evaluation of multi-layer magnetic shielding performances considering ultra-weak magnetic properties

Xu,

Wu,

Zhao

et al. 2024

J. Phys. D: Appl. Phys.

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Regarding the vast difference between the design index and the actual performance of magnetic shielding devices, this paper proposes a novel method of using precise permeability under a specific weak magnetic field, aiming to improve the design accuracy of shielding performance. Firstly, the relative permeability of the permalloy is measured under the applied magnetic field from the geomagnetic field down to 1 nT. Next, the precise shielding coefficient formulas of the single- and double-layer spherical shells are derived. For the double-layer spherical shell, the deviation of remanence between considering the ultra-weak magnetic properties and using the constant permeability is 24.3%. This clarifies the necessity of considering the ultra-weak magnetic properties in multi-layer structures. Then, a new accurate method of the shielding coefficient for the finite-length magnetic shielding cylinder is proposed, with a deviation of less than 5%. Finally, this method has been validated again by remanence measurement of the three-layer magnetic shielding cylinders. The deviation between simulation and experiment is 4.03% when considering the ultra-weak magnetic properties. While using the constant permeability, the deviation is as high as 19.31%.Therefore, considering the ultra weak magnetic properties in multi-layer structures can-significantly improve the accuracy of the performance evaluation.

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Lifetime improvement in silicon wafers using weak magnetic fields

Cited by 2 publications

References 33 publications

Effects of intensity of magnetic field generated by neodymium permanent magnet sheets on electrical characteristics of monocrystalline silicon solar cell

Effects of intensity of magnetic field generated by neodymium permanent magnet sheets on electrical characteristics of monocrystalline silicon solar cell

Analytical model and precise evaluation of multi-layer magnetic shielding performances considering ultra-weak magnetic properties

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