Achieving dual-color imaging by dual-band perovskite photodetectors coupled with algorithms.
J Colloid Interface Sci
; 625: 297-304, 2022 Nov.
Article
en En
| MEDLINE
| ID: mdl-35717845
ABSTRACT
Dual-color or multispectral imaging based on conventional optical imaging techniques is suffering from the bottleneck of complex manufacturing and time consumption caused by multiple imaging. Herein, we develop a dual-color computational imaging system combining a vertically stacked dual-channel dual-band perovskite photodetectors (PDs) and the advanced Fourier imaging algorithm. Significantly, our imaging system bypasses the complex fabrication process of high-density dual-band PD arrays and is enabled to capture two high-resolution spectral images at the same time. Based on the experiments and simulations, we confirm that the spectral overlap of dual-band PDs will cause detrimental effect for color identification, and optimizing the bandwidth spectrum is beneficial for achieving much better spectral imaging. Moreover, we have further improved the imaging quality by increasing the sampling rate and suppressing current fluctuations. We suggest that these results provide important interesting insights for the development of advanced imaging systems, including IR imaging, THz imaging, multispectral/hyperspectral imaging, etc.
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Base de datos:
MEDLINE
Asunto principal:
Algoritmos
/
Diagnóstico por Imagen
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
J Colloid Interface Sci
Año:
2022
Tipo del documento:
Article