TY - JOUR
T1 - High-resolution proximity sensor using flexible semi-transparent organic photo detector
AU - Chen, Chao Hsuan
AU - Lin, Ching Fu
AU - Wang, Kuan Hsun
AU - Liu, Hung Chuan
AU - Zan, Hsiao-Wen
AU - Meng, Hsin-Fei
AU - Hortschitz, Wilfried
AU - Steiner, Harald
AU - Kainz, Andreas
AU - Sauter, Thilo
PY - 2017/10/1
Y1 - 2017/10/1
N2 - We propose a flexible proximity sensor to detect sub-centimeter distance with an ultra-high displacement resolution. The proximity sensor is realized by integrating a semi-transparent organic photo detector with a transparent top electrode and a finger-type bottom electrode. By placing the semi-transparent finger-type photodetector on a light source, such as a light-emitting diode (LED), the photodetector can detect the light reflected from an object on top of the sensor. With the highly compact structure, the detecting range is from 1 mm to 30 mm. From 1 mm to 10 mm, the sensor is particularly sensitive and delivers a resolution of 1 mm. The air-stable photodetector can also be fabricated on a flexible substrate without encapsulation, enabling the integration with arbitrary light sources. After 1000 times bending, the flexible photodetector shows no obvious degradation.
AB - We propose a flexible proximity sensor to detect sub-centimeter distance with an ultra-high displacement resolution. The proximity sensor is realized by integrating a semi-transparent organic photo detector with a transparent top electrode and a finger-type bottom electrode. By placing the semi-transparent finger-type photodetector on a light source, such as a light-emitting diode (LED), the photodetector can detect the light reflected from an object on top of the sensor. With the highly compact structure, the detecting range is from 1 mm to 30 mm. From 1 mm to 10 mm, the sensor is particularly sensitive and delivers a resolution of 1 mm. The air-stable photodetector can also be fabricated on a flexible substrate without encapsulation, enabling the integration with arbitrary light sources. After 1000 times bending, the flexible photodetector shows no obvious degradation.
KW - Finger-type
KW - Flexible
KW - Organic photodetector
KW - Proximity sensor
KW - Solution-processed
UR - http://www.scopus.com/inward/record.url?scp=85021811945&partnerID=8YFLogxK
U2 - 10.1016/j.orgel.2017.06.063
DO - 10.1016/j.orgel.2017.06.063
M3 - Article
AN - SCOPUS:85021811945
VL - 49
SP - 305
EP - 312
JO - Organic Electronics: physics, materials, applications
JF - Organic Electronics: physics, materials, applications
SN - 1566-1199
ER -