Enhanced transparent conducting performance of c-axis oriented Ca3Co4O9 thin films. Issue 33 (13th March 2015)

• Record Type: Journal Article
• Authors: Fu, Guangsheng; Yan, Guoying; Sun, Liqing; Zhang, Hongrui; Guo, Haizhong; Wang, Jianglong; Wang, Shufang
• Is Part Of: RSC advances. Volume 5:Issue 33(2015)
• Page Start: 26383
• Page End: 26387
• Publication Date: 2015-03-13
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c4ra16187d
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : c -axis oriented Ca3 Co4 O9 p-type transparent conducting thin films with high figure of merit. Abstract : p-type transparent conductive Ca3 Co4 O9 thin films were grown on LaAlO3 substrates using a pulsed laser deposition technique. The films showed perfect c -axis orientation with a resistivity of about 7.3 mΩ cm at room temperature and optical transmittance of about 50% in the visible range. A high figure of merit of about 988 MΩ −1 was achieved in these c -axis oriented Ca3 Co4 O9 films, which is comparable to those reported for the state-of-the-art p-type transparent conducting oxides. This work demonstrated the potential applications of c -axis oriented Ca3 Co4 O9 films in optoelectronic devices as a new class of transparent conducting oxide coatings.