TY  - EJOUR
AU  - Lee, Hayoon 
AU  - An, Hyeon S. 
AU  - Park, Jongwook 
TI  - Highly Sensitive Light Guide Sensor for Multilocation and Multimodal Deformation Decoupling Using Flexible OLED
T2  - Photonics
PY  - 2025
VL  - 12
IS  - 9
SN  - 2304-6732
AB  - This work proposes a highly sensitive optical sensor system that compensates for joint fragility by combining a flexible organic light-emitting diode (FOLED) with a stretchable light guide, and its performance was systematically evaluated. The developed sensor, leveraging the high flexibility of OLEDs, was capable of detecting mechanical deformations in various positions and forms in real time and could distinguish up to seven independent signals without electromagnetic interference. Under repeated 50% tensile strain, the device sustained 130,000 cycles, and during the 75° bending test, all three configurations—single line, serpentine, and serpentine with bump—exhibited stable performance for a minimum of 80,000 cycles. The sensor system developed in this study holds promise for future applications in wearable electronics and robotics.
KW  - sensor
KW  - multilocation
KW  - multimodal deformation
KW  - FOLED
DO  - 10.3390/photonics12090909
ER  -