Department of Micro-Nano Systems Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 4648603, Japan.
Sensors (Basel). 2012 Oct 16;12(10):13899-906. doi: 10.3390/s121013899.
We have proposed a novel concept of a pressure sensor called electroluminescent pressure sensor (ELPS) based on oxygen quenching of electroluminescence. The sensor was fabricated as an organic light-emitting device (OLED) with phosphorescent dyes whose phosphorescence can be quenched by oxygenmolecules, and with a polymer electrode which permeates oxygen molecules. The sensor was a single-layer OLED with Platinum (II) octaethylporphine (PtOEP) doped into poly(vinylcarbazole) (PVK) as an oxygen sensitive emissive layer and poly(3,4-ethylenedioxythiophene) mixed with poly(styrenesulfonate) (PEDOT:PSS) as an oxygen permeating polymer anode. The pressure sensitivity of the fabricated ELPS sample was equivalent to that of the sensor excited by an illumination light source. Moreover, the pressure sensitivity of the sensor is equivalent to that of conventional pressure-sensitive paint (PSP), which is an optical pressure sensor based on photoluminescence.
我们提出了一种基于电致发光猝灭的压力传感器的新概念，称为电致发光压力传感器（ELPS）。该传感器被制造为有机发光器件（OLED），其中磷光染料的磷光可以被氧分子猝灭，并且具有聚合物电极，该聚合物电极可渗透氧分子。该传感器是具有单层 OLED 的器件，其中铂（II）八乙基卟啉（PtOEP）掺杂到聚（乙烯基咔唑）（PVK）中作为氧敏发光层，以及聚（3,4-亚乙基二氧噻吩）与聚（苯乙烯磺酸盐）（PEDOT：PSS）混合作为氧渗透聚合物阳极。所制造的 ELPS 样品的压力灵敏度与由照明光源激发的传感器的压力灵敏度相当。此外，该传感器的压力灵敏度与传统的压力敏感涂料（PSP）相当，后者是一种基于光致发光的光学压力传感器。
