Versatile surface plasmon resonance of carbon-dot-supported silver nanoparticles in polymer optoelectronic devices
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- Versatile surface plasmon resonance of carbon-dot-supported silver nanoparticles in polymer optoelectronic devices
- Choi, Hyosung; Ko, Seo-Jin; Choi, Yuri; Joo, Piljae; Kim, Taehyo; Lee, Bo Ram; Jung, Jae-Woo; Choi, Hee Joo; Cha, Myoungsik; Jeong, Jong-Ryul; Hwang, In-Wook; Song, Myoung Hoon; Kim, Byeong-Su; Kim, Jin Young
- LIGHT-EMITTING-DIODES; SOLAR-CELLS; QUANTUM EFFICIENCY; TITANIUM-OXIDE; TANDEM POLYMER; ENHANCEMENT; PERFORMANCE; CONVERSION; NANOPRISMS; EMISSION
- Issue Date
- NATURE PUBLISHING GROUP
- NATURE PHOTONICS, v.7, no.9, pp.732 - 738
- The coupling of surface plasmons and excitons in organic materials can improve the performance of organic optoelectronic devices. Here, we prepare carbon-dot-supported silver nanoparticles (CD-Ag nanoparticles) using the carbon dots both as a reducing agent and a template to fabricate solution-processable polymer light-emitting diodes and polymer solar cells. The surface plasmon resonance effect of CD-Ag nanoparticles allows significant radiative emission and additional light absorption, leading to remarkably enhanced current efficiency of 27.16 cd A-1 and a luminous efficiency of 18.54 lm W-1 in polymer light-emitting diodes as well as a power conversion efficiency of 8.31% and an internal quantum efficiency of 99% in polymer solar cells compared with control devices (current efficiency = 11.65 cd A-1 and luminous efficiency = 6.33 lm W-1 in polymer light-emitting diodes; power conversion efficiency = 7.53% and internal quantum efficiency = 91% in polymer solar cells). These results demonstrate that CD-Ag nanoparticles constitute a versatile and effective route for achieving high-performance polymer optoelectronic devices.
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