金红石衬底(TiO₂)

描述

金红石衬底(TiO₂)

金红石衬底(TiO₂)是一种高折射率、低吸收损耗的优质光学单晶材料,因其优异的光学透明性、稳定的化学性质及良好的机械性能,被广泛应用于光学镀膜、光催化、非线性光学、铁电薄膜、光电子器件及表面科学研究等领域。其高介电常数和各向异性特性,使其在光调制器、波导、传感器以及高性能光学组件的制造中具有重要价值。

在外延生长方面,金红石衬底可与多种功能氧化物薄膜实现良好的晶格匹配,从而获得高质量的外延层结构。


物理性能

性能 参数
材料 金红石(TiO₂)
晶体结构 四方晶系(tetragonal)
晶格常数 a = 4.593 Å,c = 2.959 Å
晶体纯度 ≥99.99%(4N)
密度 4.25 g/cm³
熔点 1843°C
硬度 莫氏硬度 6.0
热膨胀系数 8.2 × 10⁻⁶ /°C
折射率(550 nm) nₒ ≈ 2.616,nₑ ≈ 2.903
介电常数 εₒ ≈ 86,εₑ ≈ 170(室温)

规格

参数 详情
尺寸 (mm) 10×3、10×5、10×10、15×15、20×15、20×20、直径 1″、直径 2″、可定制
厚度 0.5 mm、1.0 mm
抛光类型 SSP(单面抛光)或 DSP(双面抛光)
晶向 <100>、<001>、<110>、<101>
定向精度 ±0.5°
表面粗糙度 (Ra) ≤5Å(AFM测量,5µm × 5µm)

包装

苏州科跃生产的金红石衬底在Class 1000级洁净室内切割、抛光与清洗,并采用Class 100洁净袋或晶圆盒进行密封包装,确保在运输和储存过程中免受污染。

这种高标准的加工与包装方式,使金红石衬底能够满足高端光学与光电子器件制造的严苛要求。

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常见问题

Sputtering targets are materials used in thin-film deposition processes to create coatings on substrates. They are used in industries like semiconductors, optics, photovoltaics, and electronics.

Evaporation materials are used in Physical Vapor Deposition (PVD) processes, where materials are heated and evaporated to form a thin film on a substrate. These are critical for applications in optics, wear protection, and decorative coatings.

Boat crucibles are used as containers for evaporation materials during PVD processes. They help to uniformly evaporate materials onto the substrate for thin film formation.

Sputtering uses energetic particles to eject material from a target, while evaporation involves heating a material until it vaporizes and deposits on a substrate. Both are common methods in Physical Vapor Deposition (PVD) for creating thin films.

Consider the material composition, purity, target size, and application-specific requirements such as the thickness and uniformity of the film.

Yes, we offer customized sputtering targets, evaporation materials, and crucibles to meet specific customer requirements for size, material composition, and purity.

Yes, we can assist in selecting the most suitable material based on your application, whether it’s for optical coatings, semiconductor fabrication, or decorative finishes.

Yes, we offer both bulk and small quantities of sputtering targets, evaporation materials, and spherical powders to support research, prototyping, and development projects.