Short-Wave Infrared (SWIR) Multispectral Imaging based on Colloidal Quantum Dot Photodetectors
Master projects/internships - Leuven | Just now
We propose an internship project to research and develop SWIR multispectral image sensors based on Color (Spectral) Filter Array, by realizing side-by-side Colloidal Quantum Dot (cQD) structures which utilize technologies that have high compatibility with the conventional color filter process for the CMOS image sensors. We believe that these schemes correctly implemented will improve end user accessibility to the SWIR hyperspectral imaging market by having more intuitive acquisition of multi-wavelength information.
The integration of photo-reactive X-linkers to the ligands attached to cQDs are proposed. A cQD solution with these ligands is spin-coated on the Si backplane with the imager readout circuitry and exposed to the scanner light. At this step, ligands of neighboring cQDs are X-linked projecting the C(S)FA mask pattern. After developing, a single species of cQDPD stack is pixelated on top of the pixel for the specific spectral information acquisition. By repeating this multiple times, specific cQDPDs of their characteristic absorption wavelengths can be located on the corresponding pixels in the C(S)FA, and cQDPD image sensors with color or spectral imaging capabilities can be fabricated by the existing CF-like process.
Type of Project: Internship
Master's degree: Master of Engineering Technology; Master of Science; Master of Engineering Science
For more information or application, please contact Joo Hyoung Kim (joohyoung.kim@imec.be).