Structure Evolution and Thermoelectric Properties of Carbonized Polydopamine Thin Films

• DOI: 10.1021/acsami.6b15601
• Publication Date: 2017-02-13T22:16:55Z
• Authors: Haoqi Li; Yaroslav V. Aulin; Laszlo Frazer; Eric Borguet; Rohit Kakodkar; Joseph Feser; Yan Chen; Ke An; Dmitriy A. Dikin; Fei Ren
• Keywords: 02 engineering and technology; 0210 nano-technology

Carbonization of nature-inspired polydopamine can yield thin films with high electrical conductivity. Understanding the structure carbonized PDA (cPDA) is therefore highly desired. In this study, neutron diffraction, Raman spectroscopy, and other techniques indicate that cPDA samples are mainly amorphous some short-range ordering graphite-like emerges increasing heat treatment temperature. The conductivity Seebeck coefficient show different trends temperature, while thermal remains insensitive. largest room-temperature ZT 2 × 10–4 was obtained on heat-treated at 800 °C, which higher than reduced graphene oxide.