𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effects of Nematic Liquid Crystal Additives on the Performance of Polymer Solar Cells

✍ Scribed by Seonju Jeong; Younghwan Kwon; Byeong-Dae Choi; Giseop Kwak; Yoon Soo Han

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
243 KB
Volume
211
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Nematic liquid crystals (NLCs), 4‐cyano‐4′‐pentylbiphenyl and 4‐cyano‐4′‐octylbiphenyl, were applied as additives to polymer solar cells with P3HT:PC~61~BM blend films. The incorporation of NLC additives led to a higher absorbance of the blend film, a higher crystallinity of P3HT, closer P3HT chains, larger PC~61~BM domains and enhanced hole/electron mobilities even without post‐thermal annealing. The non‐annealed PSC with 4 wt.‐% 8CB additives showed an increase in all parameters, resulting in a power conversion efficiency of 3.72% compared to 2.14% of the reference device without NLC additives. magnified image

πŸ“œ SIMILAR VOLUMES

Effects of flexibility on liquid crystal
Effects of flexibility on liquid crystalline polymer behavior: The nematic broken rod
✍ Charu V. Chaubal; L. Gary Leal πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 364 KB πŸ‘ 2 views

A new theory for liquid crystalline polymers is developed, and its behavior in simple shear flow is analyzed. The theory accounts for molecular flexibility by employing a microstructure consisting of two rigid rods linked by a joint with a tunable stiffness. The probability distribution function equ

Influence of Additives and Surface Topog
Influence of Additives and Surface Topography on the Alignment of Nematic Liquid Crystals
✍ G. Hauck; L. Komitov; A. Derzhanski; H. D. Koswig πŸ“‚ Article πŸ“… 1982 πŸ› John Wiley and Sons 🌐 English βš– 279 KB πŸ‘ 1 views

## Abstract Observations of the influence of a simultaneous action of different surface topographies and polar or nonpolar additives in small concentration on the alignment properties of liquid crystal molecules are reported. The additive dependence of the threshold behaviour of planar aligned liqu

Effect of prepolymer structure on the el
Effect of prepolymer structure on the electro-optic performance of polymer dispersed liquid crystals
✍ Kim, Seon Hee; Heo, Chong Phil; Park, Kwan Sun; Kim, Byung Kyu πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 477 KB πŸ‘ 2 views

The e †ect of prepolymer structure on the electro-optic properties of polymer dispersed liquid crystals (PDLCs) prepared from UV-cured polyurethane acrylates (PUAs) has been studied. Among four types of Ðlms with di †erent soft-segment structure, polypropylene glycol (PPG)-and polytetramethyl ether