A Single-Dot Perovskite Spectrometer,Advanced Materials

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A Single-Dot Perovskite Spectrometer
Advanced Materials ( IF 27.4 ) Pub Date : 2022-06-15 , DOI: 10.1002/adma.202200221
Linqi Guo ₁ , Haoxuan Sun ₁ , Min Wang ₁ , Meng Wang ₁ , Liangliang Min ₁ , Fengren Cao ₁ , Wei Tian ₁ , Liang Li ₁

Affiliation

There are significant applications for miniature on-chip spectrometers in many fields. However, at present, on-chip spectrometers have to utilize an integrated strategy to achieve spectral analysis, which undoubtedly squanders the photosensitive area and adds pressure to the miniaturization of the spectrometer. Here, a unique spectrometer design that adopts a single detection point with in situ modulation realized by the photogain control at various bias voltages is demonstrated. With micrometer-level footprints, this single-dot spectrometer processes a resolution of about 5 nm and a response time down to about 197 µs. This is the first in situ perovskite modulation strategy that breaks the footprint-resolution restriction of spectrum analysis and demonstrates a new design direction for functional perovskite devices.

中文翻译：

单点钙钛矿光谱仪

微型片上光谱仪在许多领域都有重要的应用。然而，目前片上光谱仪必须采用集成化的策略来实现光谱分析，这无疑浪费了感光面积，也给光谱仪的小型化增加了压力。在这里，展示了一种独特的光谱仪设计，该设计采用单个检测点，通过在各种偏置电压下的光增益控制实现原位调制。这款单点光谱仪具有微米级尺寸，可处理约 5 nm 的分辨率和低至约 197 µs 的响应时间。这是第一个打破频谱分析足迹分辨率限制的原位钙钛矿调制策略，并展示了功能性钙钛矿器件的新设计方向。

更新日期：2022-06-15

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