High-performance organic upconversion device with 12% photon to photon conversion efficiency at 980 nm and bio-imaging application in near-infrared region
Yuqing Zhang, Zeyu He, Xiaoyang Du, Jiayue Han, Hui Lin, Caijun Zheng, Jun Wang, Gang Yang, Silu Tao
Abstract
We demonstrated an organic upconversion device (UCD) successfully converted input NIR light (850–1310 nm) into 524 nm green emission. The UCD under 980 nm light irradiation exhibits a high photon to photon conversion efficiency of 12%. In addition, the linear dynamic range reaches 72.1 dB and the maximum on/off ratio of luminance reaches 4.4×10 4 , which guarantee the clarity of imaging from 850 to 1310 nm. The UCD in this work has the characteristics of high efficiency and long wavelengths detection, and it makes some senses for long wavelengths NIR bio-imaging in further researches.
Topics & Concepts
Photon upconversionMaterials scienceOpticsOptoelectronicsWavelengthNear-infrared spectroscopyPhotonInfraredPhysicsLuminescenceLuminescence Properties of Advanced MaterialsNanoplatforms for cancer theranosticsPhotoacoustic and Ultrasonic Imaging