ZnTe crystals
Simple description：
Zinc telluride (ZnTe) crystal is an electro-optic crystal with a cubic zinc blende structure, belonging to the III compound semiconductor family. It is commonly used in the generation and detection of terahertz (THz) waves, as well as in the fabrication of optlectronic devices.
Advantages：High optical transparency、High thermal conductivity and breakdown field strength、Excellent electro-optic performance、Good mechanical properties
Application fields：Terahertz (THz) technology、Optoelectronic devices、Optical communication and information processing、Scientific and measurement technology
Simple description：
Zinc telluride (ZnTe) crystal is an electro-optic crystal with a cubic zinc blende structure, belonging to the III compound semiconductor family. It is commonly used in the generation and detection of terahertz (THz) waves, as well as in the fabrication of optlectronic devices.
Detailed Description：
ZnTe crystal is a semiconductor material with unique optoelectronic properties. Its crystal is cubic sphalerite, bonded by ionic bonds and containing a certain amount of covalent bond components. ZnTe crystal is a direct bandgap with a room temperature bandgap of 2.28 eV (or 2.25 eV, depending on the measurement conditions), and both and hole mobilities are relatively high. Additionally, ZnTe crystal has a high melting point (1238°C), refractive index (3.6 or 2.7, depending on the wavelength), and excellent surface quality.
Advantages：
- High optical transparency: ZnTe crystals have high transmittance in the visible and infrared spectral ranges, especially in mid-to-far infrared region.
- High thermal conductivity and breakdown field strength: These properties make ZnTe crystals advantageous for manufacturing high-power, high-frequency devices.
- Excellent electro-optic performance: ZnTe crystals have a large electro-optic coefficient, which makes them perform well in applications such as electroic modulation and optical switching.
- Good mechanical properties: ZnTe crystals have high hardness and toughness, allowing them to withstand certain mechanical stresses.
Application fields：
- Terahertz (THz) technology: ZnTe crystals are crucial materials for generating and detecting TH waves. Utilizing the optical rectification effect or electro-optic effect, ZnTe crystals can efficiently convert lasers into THz waves, or they can be used detect the amplitude and phase information of THz waves.
- Optoelectronic devices: ZnTe crystals can be used to manufacture various optoelect devices, such as lasers, detectors, and modulators. Their high optical transparency and electro-optic properties enable these devices to have excellent photoelectric conversion efficiency and speed.
- Optical communication and information processing: ZnTe crystals also have wide applications in the fields of optical communication and information processing. For instance, can be used to make optical filters, optical switches, and optical amplifiers, which enable high-speed and large-capacity information transmission and processing.
- Scientific and measurement technology: ZnTe crystals are also commonly used in scientific research and measurement technology, such as in the manufacture of terahertz time-domain spectrom and optical limiters.
Parameter：
| parameter | value |
| chemical formula | ZnTe |
| Lattice structure | Cubic zinc blende |
| density | 5.633 g/cm³ |
| Specific heat | 0.16 J/gK |
| Band gap（300K） | 2.26 eV（或2.28 eV） |
| Maximum transmittance（λ=7-12 μm） | 60% |
| Maximum resistivity | 10^9 Ohm·cm |
| Refractive index（λ=10.6 μm） | 2.7 |
| Electrooptic coefficient y41 | 4.0 pm/V |
| Resistivity range | <109 Ohm·cm |
