TY - JOUR
T1 - Conducting Polymer-Based Electrochemically Tunable Filters with Spatiotemporal Spectral Tunability
AU - Peng, Jia
AU - Yu, Haifan
AU - Jiang, Xi
AU - Xu, Pengxin
AU - Li, Yongfang
AU - Zhong, Haizheng
N1 - Publisher Copyright:
© 2025 Wiley-VCH GmbH.
PY - 2025
Y1 - 2025
N2 - Optical filters are key components to achieve spatial or temporal modulators for constructing computational miniaturized spectrometers. Conducting polymer-based electrochemically tunable filters with spatiotemporal spectral tunability are reported, demonstrating the advantages of angle-independence, diverse spectral modulation, high repeatability, and flexibility. By controlling the chemical doping of polyaniline solutions and films, diverse spectral modulation is achieved in the wavelength range of 350–1100 nm. To achieve temporal encoding, an electrochemically tunable filter is developed using a three-electrode vertical device (ITO/PAni/Electrolyte (Ag/AgCl)/PEDOT/ITO), which exhibits continuous spectra with high repeatability during 100 cycles test. To achieve spatial encoding, a three-electrode lateral device is developed incorporating three different conducting polymers (Cu/Electrolyte (ITO-PAni+PPy+PEDOT-OH)/Cu), which show gradient spectra with extensive diversity. Using a three-electrode vertical device, a miniaturized hyperspectral imaging system with 640 × 512 pixel resolution is constructed, which can distinguish quantum dot solutions with different emission wavelengths of 10 nm. Combining the spectral tunability of a three-electrode lateral device and a compressed sensing-based reconstruction algorithm, a miniaturized spectrometer with a spectral resolution of ≈1 nm is further theoretically demonstrated. In summary, conducting polymer provides advanced electrochemically tunable light modulators for smart optics.
AB - Optical filters are key components to achieve spatial or temporal modulators for constructing computational miniaturized spectrometers. Conducting polymer-based electrochemically tunable filters with spatiotemporal spectral tunability are reported, demonstrating the advantages of angle-independence, diverse spectral modulation, high repeatability, and flexibility. By controlling the chemical doping of polyaniline solutions and films, diverse spectral modulation is achieved in the wavelength range of 350–1100 nm. To achieve temporal encoding, an electrochemically tunable filter is developed using a three-electrode vertical device (ITO/PAni/Electrolyte (Ag/AgCl)/PEDOT/ITO), which exhibits continuous spectra with high repeatability during 100 cycles test. To achieve spatial encoding, a three-electrode lateral device is developed incorporating three different conducting polymers (Cu/Electrolyte (ITO-PAni+PPy+PEDOT-OH)/Cu), which show gradient spectra with extensive diversity. Using a three-electrode vertical device, a miniaturized hyperspectral imaging system with 640 × 512 pixel resolution is constructed, which can distinguish quantum dot solutions with different emission wavelengths of 10 nm. Combining the spectral tunability of a three-electrode lateral device and a compressed sensing-based reconstruction algorithm, a miniaturized spectrometer with a spectral resolution of ≈1 nm is further theoretically demonstrated. In summary, conducting polymer provides advanced electrochemically tunable light modulators for smart optics.
KW - conducting polymers
KW - spatiotemporal spectral tunability
KW - spectral imaging
KW - spectrometers
UR - http://www.scopus.com/inward/record.url?scp=105000835383&partnerID=8YFLogxK
U2 - 10.1002/adfm.202500993
DO - 10.1002/adfm.202500993
M3 - Article
AN - SCOPUS:105000835383
SN - 1616-301X
JO - Advanced Functional Materials
JF - Advanced Functional Materials
ER -