High speed and high resolution chemical imaging based on a new type of OLED-LAPS set-up
High speed and high resolution chemical imaging based on a new type of OLED-LAPS set-up
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DOI：
10.1016/j.snb.2011.12.102
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发表时间：
2012-12
影响因子：
8.4
通讯作者：
C. Werner;T. Wagner;K. Miyamoto;T. Yoshinobu;M. Schöning
中科院分区：
文献类型：
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作者：
C. Werner;T. Wagner;K. Miyamoto;T. Yoshinobu;M. Schöning
光寻址电位传感器 (LAPS) 是基于场效应的传感器。调制光源用于定义特定的测量点，以执行化学物质的空间分辨测量并生成化学图像。在这项工作中，选择有机 LED (OLED) 显示器作为光源。这允许高测量分辨率和系统的小型化。展示了一种新开发的 OLED 显示器驱动方法，该方法针对基于 LAPS 的测量进行了优化。新方法能够定义 1kHz 至 16kHz 之间的调制频率，因此与 OLED 显示器的传统寻址相比，化学图像的测量时间减少了 40 倍。
Light-addressable potentiometric sensors (LAPS) are field-effect-based sensors. A modulated light source is used to define the particular measurement spot to perform spatially resolved measurements of chemical species and to generate chemical images. In this work, an organic-LED (OLED) display has been chosen as a light source. This allows high measurement resolution and miniaturisation of the system. A new developed driving method for the OLED display optimised for LAPS-based measurements is demonstrated. The new method enables to define modulation frequencies between 1kHz and 16kHz and hence, reduces the measurement time of a chemical image by a factor of 40 compared to the traditional addressing of an OLED display.