A Single-Dot Perovskite Spectrometer

被引：63

作者：

Guo, Linqi ^{[1
]}

Sun, Haoxuan ^{[1
]}

Wang, Min ^{[1
]}

Wang, Meng ^{[1
]}

Min, Liangliang ^{[1
]}

Cao, Fengren ^{[1
]}

Tian, Wei ^{[1
]}

Li, Liang ^{[1
]}

机构：

[1] Soochow Univ, Sch Phys Sci & Technol, Jiangsu Key Lab Thin Films, Ctr Energy Convers Mat & Phys CECMP, Suzhou 215006, Peoples R China

来源：

ADVANCED MATERIALS | 2022年 / 34卷 / 33期

基金：

中国国家自然科学基金;

关键词：

hyper-spectrum; ion migration; perovskites; spectrometers; HIGH-PERFORMANCE; ION MIGRATION; SOLAR-CELLS; CHIP; PHOTODETECTORS;

D O I：

10.1002/adma.202200221

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 mu s. 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.

引用

页数：10

共 45 条

[1] Perovskite Solar Cells: Optoelectronic Simulation and Optimization [J].