Polymer Solar Cells with Polymer/Carbon Nanotube Composite Hole- Collecting Buffer Layers
نویسندگان
چکیده
We report the performance of polythiophene/fullerene solar cells with a hole-collecting buffer layer that was made using composite films of functionalized multi-walled carbon nanotube (f-MWCNT) and poly(3,4ethylenedioxythiphene):poly(styrenesulfonate) (PEDOT:PSS). The MWCNT was functionalized with carboxyl groups to bestow solubility in a weak base solvent for mixing with PEDOT:PSS. Results showed that the optical transmittance of the PEDOT:PSS/f-MWCNT composite layer coated substrate sample was slightly improved in some parts of visible and infrared regions. The polymer solar cells with the PEDOT:PSS/f-MWCNT buffer layer exhibited improved short circuit current density but other parameters became poorer than those of control device.
منابع مشابه
Enhanced performance of polymer solar cells by dipole-assisted hole extraction
Polymer solar cells (PSCs) with different anode buffer layers were fabricated to investigate dipoleassisted hole extraction on the performance improvement of PSCs. The power conversion efficiency (PCE) of PSCs was increased from 4.77% to 6.18% with 29.6% improvement due to the increased short circuit current density (Jsc) from 12.00 to 15.65 mA/cm 2 induced by the oriented LiF dipole-assisted h...
متن کاملInfluence of Controlled Acidity of Hole-Collecting Buffer Layers on the Performance and Lifetime of Polymer:Fullerene Solar Cells
Influence of Controlled Acidity of Hole-Collecting Buffer Layers on the Performance and Lifetime of Polymer:Fullerene Solar Cells Hwajeong Kim, Sungho Nam, Hyena Lee, Sungho Woo, Chang-Sik Ha, Moonhor Ree,* and Youngkyoo Kim* Organic Nanoelectronics Laboratory, Department of Chemical Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea Department of Polymer Science and E...
متن کاملSingle-wall carbon nanotubeÕconjugated polymer photovoltaic devices
We report the optoelectronic properties occurring in single-walled carbon nanotubes ~SWNTs!— conjugated polymer, poly~3-octylthiophene! composites. Composite films were drop or spin cast from a solution on indium–tin oxide ~ITO! and quartz substrates and studied using absorption spectroscopy and electrical characterization methods. Diodes ~Al/polymer-nanotube composite/ ITO! with a low nanotube...
متن کاملPolymeric solar cells with oriented and strong transparent carbon nanotube anode
In this study, an oriented, strong and transparent multiwall carbon nanotube sheet is used as the hole collecting electrode in polymer solar cells with RR-P3HT as the donor material and PCBM as the acceptor material. An open circuit voltage of 0.49 V, a short circuit current of 5.47 mA/cm 2 , a fill factor of 0.49, and an efficiency of 1.32% have been obtained. Performance dependence on inciden...
متن کاملHybrid carbon nanotube networks as efficient hole extraction layers for organic photovoltaics.
Transparent, highly percolated networks of regioregular poly(3-hexylthiophene) (rr-P3HT)-wrapped semiconducting single-walled carbon nanotubes (s-SWNTs) are deposited, and the charge transfer processes of these nanohybrids are studied using spectroscopic and electrical measurements. The data disclose hole doping of s-SWNTs by the polymer, challenging the prevalent electron-doping hypothesis. Th...
متن کامل