论文标题
基于纳米材料的异质光检测技术的统一基准测定和表征协议
Unified benchmarking and characterization protocol for nanomaterial-based heterogeneous photodetector technologies
论文作者
论文摘要
在过去的几年中，使用光活性纳米材料来证明高度敏感的快速光电探测器的迅速增长。与任何其他发展中的和高度跨学科的领域一样，由于材料较少和非标准化的表征协议，现有报告在数据中显示出很大的传播。这需要简化的性能基准测试要求，以加速有前途的候选人的技术采用。本文的目的是四个方面：（i）解决执行这种基准测试练习的关键挑战； （ii）阐明要寻找的正确数字，尤其是要证明与其他常用的响应率（$ r $）（$ r $）和特定检测性（$ d^*$）相比，噪声等效驱动器（$ n \！ （iii）提出$ n \！e \！p $而不是操作频率（$ f $）作为单个，统一的基准测试图表，可用于异质探测器技术之间的苹果对苹果比较； （iv）提出了一个简单但简化的表征协议，该协议在报告光电探测器性能时可以遵循。
Over the last few years, there has been a rapid growth towards demonstrating highly sensitive, fast photodetectors using photoactive nano-materials. As with any other developing and highly inter-disciplinary field, the existing reports exhibit a large spread in the data due to less optimized materials and non-standardized characterization protocols. This calls for a streamlined performance benchmarking requirement to accelerate technological adoption of the promising candidates. The goal of this paper is four-fold: (i) to address the key challenges to perform such benchmarking exercise; (ii) to elucidate the right figures of merit to look for, and in particular, to demonstrate that noise-equivalent-power ($N\!E\!P$) is a more reliable sensitivity metric than other commonly used ones, such as responsivity ($R$) and specific detectivity ($D^*$); (iii) to propose $N\!E\!P$ versus frequency of operation ($f$) as a single, unified benchmarking chart that could be used for apple-to-apple comparison among heterogeneous detector technologies; and (iv) to propose a simple, yet streamlined characterization protocol that can be followed while reporting photodetector performance.
