Optical properties of the composite film from P3HT and hydrothermally synthesized porous carbon nanospheres. Issue 10 (4th May 2015)

• Record Type: Journal Article
• Authors: Yan, Lingpeng; Yang, Weijia; Hao, Yamin; Yang, Yongzhen; Liu, Xuguang; Xu, Bingshe
• Is Part Of: Journal of materials research. Volume 30:Issue 10(2015)
• Page Start: 1599
• Page End: 1610
• Publication Date: 2015-05-04
• Subjects: Materials -- Research -- Periodicals; 620.1105
• DOI: 10.1557/jmr.2015.108
• Languages: English
• ISSNs: 0884-2914

Abstract

Abstract: Abstract : Porous carbon nanospheres (PCNSs), with a diameter of about 100 nm and porous structure, were synthesized by a hydrothermal method. Then, poly(3-hexylthiophene):PCNS (P3HT:PCNS) composite films were prepared by a spin-coating method using PCNS and P3HT mixtures in a chlorobenzene solution. The effects of mixture ratio, revolving speed, suspension concentration during spin coating, and annealing on the optical properties of P3HT:PCNS composite films were investigated. The results indicate that PCNSs exhibit an energy level matching with P3HT and the optical properties of the P3HT:PCNSs depend strongly on mixture ratio, revolving speed, and suspension concentration during spin coating. A 2:1 ratio of P3HT to PCNSs, suspension concentration of 20 mg/mL (P3HT), and spinning rate of 2000 rpm are appropriate for fabricating P3HT:PCNS composite films, and annealing increases the crystallinity of P3HT, resulting in enhanced visible light absorption and increased charge transport in composite films.