Anti-PLEC (aa 4367-4684) polyclonal antibody

A trace material detection system was developed on the basis of cavity-enhanced absorption spectroscopy (CEAS) using a fiber-coupled passively locked external cavity diode laser (PLEC-DL) in the near-infrared (NIR) wavelength region. The oscillation range of an antireflection-coated diode laser (AR-DL) coupled into an external cavity could be simply selected with a narrowband bandpass filter (1 nm), resulting in a stable wavelength oscillation in the wideband tunability between 1640 and 1680 nm. The external cavity acts as a trace material sensor that exhibits excellent flexibility because it is free from the DL source and is carefully designed with mirrors having reflectivities of ca. 99.995 and 99.99%. Trace-level detection was successfully demonstrated with the developed sensor having a minimum detectable absorption coefficient of 2.4 x 10(-8) cm(-1), which corresponds to 0.15 ppm for CH4 concentration without interference from H2O absorption lines under atmospheric pressure. (C) 2016 The Japan Society of Applied Physics

Here, we systematically examine the impact of electrode work function, ionic species, and charge injection layers on the operation of polymer light-emitting electrochemical cells (PLECs) based on p-type Super Yellow. To achieve PLECs yielding a more intensive luminance compared to what can be achieved from the non-ionic light-emitting device counterpart, i. e., the polymer light-emitting diode (PLED), in an analogous device structure, the experimental results here guide the following lessons. First, the use of charge injection layer does not necessarily yield a PLEC that outperforms its PLED counterpart but rather complexes the device structure. Second, injection of minority electrons is critical for enhancing the luminescence characteristics of p-type polymer based LECs, and the enhanced electron injection is achieved more effectively by modifying the work function of the cathode than by changing the cations. Third, for p-type PLECs with a low-work function cathode, careful selection of anions can drastically change the device performance, which are involved in the p-type electrochemically doping process.