| 학회 | 한국재료학회 |
| 학술대회 | 2017년 봄 (05/17 ~ 05/19, 목포 현대호텔) |
| 권호 | 23권 1호 |
| 발표분야 | 7. 플라즈모닉 소재의 응용(Applications of Plasmonic Materials) |
| 제목 | Enhanced optical and electrical effects by metallic nanostructures in thin-film solar cells |
| 초록 | In this talk, we propose a metal-metal core-shell nanocube (NC) as an advanced plasmonic material for highly efficient OSCs, which shows strong scattering efficiency throughout the visible range. Highly efficient plasmonic organic solar cells are fabricated by incorporating Au@Ag NCs into an anodic buffer layer [1, 2]. Next, we demonstrate that the metal nanoparticles can improve the performance of OSCs by enhancing the internal quantum efficiency (IQE) of the devices even without a notable plasmonic optical gain [3]. A hybrid layer platform in combination of silver nanoparticles (AgNPs) and polyethylenimine-ethoxylated (PEIE) layer maximizes the IQE of the OSCs to nearly 100 %. The AgNPs provide the short path and funnel charge carriers to a cathode, which would effectively raise the carrier mobility. Lastly, we utilize Au@Ag core-shell nanocubes (NCs) by embedding them in a low temperature-processed anatase TiO2 layer to form a resonance-shifting hybrid n-layer (Au@Ag NCs-HL) for efficient PbS-based solar cells [4]. The Au@Ag NCs-HL broadly improves the absorption of the device by the near-infrared plasmonic scattering effect. References: [1] J.-Y. Lee et al. “Au@Ag Core-Shell Nanocubes for Efficient Plasmonic Light Scattering Effect in Low Bandgap Organic Solar Cells,” ACS Nano, 8, 3302 (2014). [2] J.-Y. Lee et al. “Nanoimprinting-induced nanomorphological transition in polymer solar cells: enhanced electrical and optical performance,” ACS Nano 9, 2773 (2015). [3] J.-Y. Lee et al. “Enhancing the internal quantum efficiency and stability of organic solar cells via metallic nano-funnels,” Advanced Energy Materials 5, 1501393 (2015). [4] J.-Y. Lee et al. “Resonance-shifting hybrid n-layer for boosting near infrared response in highly efficient colloidal quantum dots solar cells,” Advanced Materials, 27, 8102 (2015). |
| 저자 | 이정용 |
| 소속 | 한국과학기술원 |
| 키워드 | Metal nanostructures; plasmonic scattering; thin-film solar cells |
