Polymer Photodetector Developed with High Detectivity Across Broad Spectral Range

Infrared Spectral Detectivity of Cr‐doped GaAs

Semiconducting Polymer Photodetectors with Electron and Hole Blocking Layers: High Detectivity in the Near-Infrared

Sensing from the ultraviolet-visible to the infrared is critical for a variety of industrial and scientific applications. Photodetectors with broad spectral response, from 300 nm to 1,100 nm, were fabricated using a narrow-band gap semiconducting polymer blended with a fullerene derivative. By using both an electron-blocking layer and a hole-blocking layer, the polymer photodetectors, operating...

Surface-Relief Gratings and Stable Birefringence Inscribed Using Light of Broad Spectral Range in Supramolecular Polymer-Bisazobenzene Complexes

The linear and nonlinear optical properties of azobenzenecontaining polymers are of immense, yet unredeemed, technological interest. The potential applications aremanifold, including, e.g., optical information storage and processing, photoswitching, diffractive optics, and photomechanics. Many of the attractive features are brought about by the photoisomerization of the azobenzenemoieties, whic...

Solution-processed hybrid perovskite photodetectors with high detectivity.

Photodetectors capture optical signals with a wide range of incident photon flux density and convert them to electrical signals instantaneously. They have many important applications including imaging, optical communication, remote control, chemical/biological sensing and so on. Currently, GaN, Si and InGaAs photodetectors are used in commercially available products. Here we demonstrate a novel...

High Detectivity All-Printed Organic Photodiodes.

All-printed organic photodiode arrays on plastic are reported with average specific detectivities of 3.45 × 10(13) cm Hz(0.5) W(-1) at a bias of -5 V. The blade-coated polyethylenimine cathode interlayer and active layer, and screen-printed anode enable precise device performance tunability and excellent homogeneity at centimetric scales. These devices' high operational reverse bias, good linea...