• 文献标题:   Three-Dimensional Graphene Nanostructures
  • 文献类型:   Article
  • 作  者:   PEURIFOY SR, CASTRO E, LIU F, ZHU XY, NG F, JOCKUSCH S, STEIGERWALD ML, ECHEGOYEN L, NUCKOLLS C, SISTO TJ
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
  • ISSN:   0002-7863
  • 通讯作者地址:   Columbia Univ
  • 被引频次:   24
  • DOI:   10.1021/jacs.8b04119
  • 出版年:   2018

▎ 摘  要

This Communication details the implementation of a new concept for the design of high-performance optoelectronic materials: three-dimensional (3D) graphene nanostructures. This general strategy is showcased through the synthesis of a three-bladed propeller nanostructure resulting from the coupling and fusion of a central triptycene hub and helical graphene nanoribbons. Importantly, these 3D graphene nanostructures show remarkable new properties that are distinct from the substituent parts. For example, the larger nanostructures show an enhancement in absorption and decreased contact resistance in optoelectronic devices. To show these enhanced properties in a device setting, the nanostructures were utilized as the electron-extracting layers in perovskite solar cells. The largest of these nanostructures achieved a PCE of 18.0%, which is one of the highest values reported for non-fullerene electron-extracting layers.