| 초록 |
Photon upconversion (UC) is becoming increasingly important in enhancing the efficiency of solar-based technologies. Here we present a facile fabrication technique for producing low-power 3D-printable upconverting polymer blends that are easily manipulated into a variety of 3D-forms with minimal processing using commercially available 3D-printer. By blending two biocompatible polymers of polycaprolactone (PCL) and polylactic acid (PLA) in combination with the benchmark red-to-blue UC pair (PdTPBP/perylene), free-standing rubbery solid filaments that exhibit high flexibility and good mechanical properties were successfully fabricated, followed by 3D-printing process to produce shape-controlled upconverting 3D-matrices. Our 3D-printing scheme is the first report describing 3D-printed upconverting polymer matrices that can be readily shape-controlled, which enables new applications in solar devices and electronics by integrating UC materials with complex 3D shapes. |
