Ph.D student Woo Chan Lee(Advisor:Seung Hyup Yoo) won the Best Student Paper Award 1st Prize at the OSA Advanced Photonics Congress 2019 in San Francisco, USA.
The OSA Advanced Photonics Congress is the conference which is organized by OSA to present various researches on photonic devices.
In this research, they fabricated an OLED that emits near-infrared light using a down-conversion method. Near-infrared OLED has been very difficult to achieve high efficiency and stability, mainly due to material limitations. In this research, they used a method that combines a phosphor that converts orange light into near infrared and an orange OLED that has a high efficiency and stability by using a down-conversion. Through optical analysis and optimization at the down-conversion process, they finally implemented a near-infrared OLED with a near-infrared external quantum efficiency of about 14%.
The developed light source is expected to be used for wearable healthcare, because it has the advantages of OLED flexibility and near-infrared rays with various applications.
|Conference||OSA Advanced Photonics Congress 2019|
|Location||Hyatt Regency San Francisco Airport, San Francisco, California, USA|
|Winner||Ph. D Student Woo Chan Lee (Advisor: Seung Hyup Yoo)|
|Awards||Best Student Paper Award 1st Prize|
|Paper||Down-conversion Based Near-infrared Organic Light-emitting Diodes with High Efficiency and Low Roll-off|