Lulu Sun, Jiachen Wang, Hiroyuki Matsui, Shinyoung Lee, Wenqing Wang, Shuyang Guo, Hongting Chen, Kun Fang, Yoshihiro Ito, Daishi Inoue, Daisuke Hashizume, Kazuma Mori, Masahito Takakuwa, Sunghoon Lee, Yinhua Zhou, Tomoyuki Yokota, Kenjiro Fukuda, Takao Someya
All-solution-processed organic optoelectronic devices can enable the large-scale manufacture of ultrathin wearable electronics with integrated diverse functions. However, the complex multilayer-stacking device structure of organic optoelectronics poses challenges for scalable production. Here, we establish all-solution processes to fabricate a wearable, self-powered photoplethysmogram (PPG) sensor. We achieve comparable performance and improved stability compared to complex reference devices with evaporated electrodes by using a trilayer device structure applicable to organic photovoltaics, photodetectors, and light-emitting diodes...
April 12, 2024: Science Advances