• 文献标题:   Nanofiller graphene-ZnO hybrid nanoarchitecture: optical, electrical and optoelectronic investigation
  • 文献类型:   Article
  • 作  者:   QURASHI A, SUBRAHMANYAM KS, KUMAR P
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF MATERIALS CHEMISTRY C
  • ISSN:   2050-7526 EI 2050-7534
  • 通讯作者地址:   King Fahd Univ Petr Minerals
  • 被引频次:   16
  • DOI:   10.1039/c5tc02729b
  • 出版年:   2015

▎ 摘  要

We report the sonochemical synthesis of a hybrid nanoarchitecture composed of vertically aligned arrays of ZnO nanorods (diameter similar to 80 nm and length similar to 1 mu m) and a few atomic layers of arc discharge prepared graphene. High resolution FESEM images demonstrated that graphene layers have successfully been embedded in between the ZnO nanorod arrays (NRAs). Raman spectra of the hybrid nanomaterial exhibited D, G and 2D Raman fingerprints of graphene and ZnO (E-2) modes at 437 cm(-1) which confirmed the formation of a ZnO-graphene hybrid nanomaterial. The ZnO-graphene hybrid nanomaterial exhibits intense broad room temperature photoluminescence. Using graphene as a nanofiller considerably enhanced the electrical conductivity of the ZnO NRAs and the hybrid material exhibits a semi-metallic behaviour. Photoconductivity of the hybrid nanosystem has also been investigated which strengthens its candidature as a potential hybrid nanomaterial with optoelectronic synergy between its components.