Broadband perovskite quantum dot spectrometer beyond human visual resolution.

ABSTRACT: The quantum dot spectrometer, fabricated by integrating different quantum dots with an image sensor to reconstruct the target spectrum from spectral-coupled measurements, is an emerging and promising hyperspectrometry technology with high resolution and a compact size. The spectral resolution and spectral range of quantum dot spectrometers have been limited by the spectral variety of the available quantum dots and the robustness of algorithmic reconstruction. Moreover, the spectrometer integration of quantum dots also suffers from inherent photoluminescence emission and poor batch-to-batch repeatability. In this work, we developed nonemissive in situ fabricated MA₃Bi₂X₉ and Cs₂SnX₆ (MA = CH₃NH₃; X = Cl, Br,

SUBMITTER: Zhu X 

PROVIDER: S-EPMC7190644 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature