Crystal field splitting and effective g factor of infrared emission band in single crystal

Zhou, Yulan; Wang, Xia; Zhang, Junpei; Han, Junbo

doi:10.1016/j.molstruc.2014.02.039

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…Then, magnetic field that enhanced or suppressed the luminescence intensity is discovered accompanying with the magnetic-optical hysteresis. According to the magnetic field-modulated factors, we divided the microscopic mechanism into Zeeman effect [52][53][54][55][56], cross-relaxation [57], Boltzmann population and site symmetry of the crystal structure [58][59][60][61][62][63][64], absorption [65][66][67], quantum confinement effect [68], and magneticoptical hysteresis [69].…”

Section: Mechanism Of Magnetic Field-modulated Downshift Luminescencementioning

confidence: 99%

“…Because of the anisotropy of crystal structure, the distance between lanthanide ions along different crystal orientations is various, resulting in the inconsonant interaction along various crystal orientations with the application of magnetic field and modulating the crystal field and luminescence of lanthanide ions. The changed Boltzmann populations and site symmetry around lanthanide ions are considered as the main mechanism for modulated crystal field by magnetic field [58][59][60][61][62][63][64].…”

Section: Crystal Structurementioning

confidence: 99%

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Mechanism of magnetic field-modulated luminescence from lanthanide ions in inorganic crystal: a review

2020

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The luminescence from lanthanide ions has potential applications in light emitting diodes, biomedical, solar cells, sensors, display, etc. However, the luminescence is suffered from the various problems, such as low luminescence efficiency and inharmonious wavelength for energy transfer. Magnetic field is an efficient method to modulate the wavelength and intensity of luminescence from lanthanide ions. Magnetic field redistributes the populated electrons in the excited states to tune the wavelength of lanthanide ions by Zeeman effect, mixing effect, and quantum confinement effect. Magnetic field enhances or suppresses the luminescence intensity by the administration of cross-relaxation, energy transfer, and Boltzmann population. In this review, we first introduce the various phenomena and mechanisms of magnetic field modulated downshift luminescence from lanthanide ions, including Zeeman effect, cross-relaxation, crystal structure, absorption, quantum confinement effect, and magneticoptical hysteresis. Then, we explain the regulation of upconversion luminescence by magnetic field, containing energy transfer and mixing effect. Finally, different options regarding how to understand the mechanism of magnetic field-modulated luminescence from lanthanide ions in the future are outlined.

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Section: Mechanism Of Magnetic Field-modulated Downshift Luminescencementioning

confidence: 99%

Section: Crystal Structurementioning

confidence: 99%

Mechanism of magnetic field-modulated luminescence from lanthanide ions in inorganic crystal: a review

2020

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Physical Manipulation of Lanthanide‐Activated Photoluminescence

et al. 2019

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Versatile manipulation of lanthanide photoluminescence not only enables a more thorough understanding of the luminescent mechanism, but also promotes their widespread applications including advanced display and security, bioimaging and biotherapy, and sensors. The traditional chemical methods, engineering of composition, concentration, size, morphology, and surface defects, can easily tune the excitation, energy transfer and emission processes and have been frequently used. Despite the powerful ability to control luminescence intensity and selectivity, these chemical approaches suffer from cumbersome synthesis processes and are usually time consuming and irreversible. Recently, there have been numerous examples of physical approaches realizing in situ, real time, and reversible luminescence manipulation for certain materials under a given excitation. Herein, the existing physical strategies comprising temperature, magnetic field, electric field, and mechanical stress are summarized. For each approach, the action mechanism, material design, applications, as well as current challenges are discussed, and possible development directions and broadening of the potential application areas are considered. Applying Magnetic FieldMagneto-optic interaction, here mainly refers to the effect of applied magnetic field during luminescence measurement, was also widely utilized to regulate luminescence emission of not

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Growth process of Yb, Er: Na0.04K0.96Y(WO4)2 crystals and luminescence properties in the near infrared range

Leng¹,

Jiang²,

Yang³

et al. 2022

Infrared Physics & Technology

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Crystal field splitting and effective g factor of infrared emission band in single crystal

Cited by 8 publications

References 19 publications

Mechanism of magnetic field-modulated luminescence from lanthanide ions in inorganic crystal: a review

Mechanism of magnetic field-modulated luminescence from lanthanide ions in inorganic crystal: a review

Physical Manipulation of Lanthanide‐Activated Photoluminescence

Growth process of Yb, Er: Na0.04K0.96Y(WO4)2 crystals and luminescence properties in the near infrared range

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