基于分子束外延技术的高性能光电阴极用于下一代光电探测器和光源
High Performance Photocathodes based on Molecular Beam Epitaxy Deposition for Next Generation Photo Detectors and Light Sources
摘要：
高性能光电阴极的发展是未来加速器和粒子物理应用的关键挑战。本文介绍了通过分子束外延生长光电阴极作为一种有前途的技术，以获得强大的，高效的碱锑化物基光电阴极。最近的研究表明，通过控制光电阴极的结晶度可以显著提高光电阴极的量子效率。分子束外延允许具有成本效益的大面积光电阴极的生长，具有良好的化学计量和结晶度控制，使光电阴极的峰值量子效率超过35%的常规。
英文摘要：
The development of high-performance photocathodes is a key challenge for future accelerator and particle physics applications. In this paper photocathode growth through molecular beam epitaxy is introduced as a promising technique to obtain robust, highly efficient alkali-antimonide based photocathodes. Recent research shows that the quantum efficiency of photocathodes can be significantly enhanced through control of the photocathode crystallinity. Molecular beam epitaxy allows for cost-effective growth of large-area photocathodes with excellent control of the stoichiometry and crystallinity, making photocathodes with peak quantum efficiencies exceeding 35% routine.
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