• 文献标题:   Au-doped single layer graphene nanoribbons for a record-high efficiency ITO-free tandem polymer solar cell
  • 文献类型:   Article
  • 作  者:   YUSOFF ARB, KIM D, SCHNEIDER FK, DA SILVA WJ, JANG J
  • 作者关键词:  
  • 出版物名称:   ENERGY ENVIRONMENTAL SCIENCE
  • ISSN:   1754-5692 EI 1754-5706
  • 通讯作者地址:   Kyung Hee Univ
  • 被引频次:   34
  • DOI:   10.1039/c5ee00749f
  • 出版年:   2015

▎ 摘  要

Polymer solar cells (PSCs) are apparently becoming one of the leading technologies to reduce our dependency on traditional power sources. However, the frequent use of a transparent conductive electrode, indium-tin-oxide (ITO), in the present PSC technologies has increased the overall expenses. In addition, its brittleness in nature could limit the future development of PSCs, particularly in a flexible format. Here, we report on the development of Au-doped single layer graphene nanoribbons (Au-doped SLGNRs) as an option to the transparent conducting electrode (indium tin oxide, ITO) that could yield a single-layer PSC with power conversion and external quantum efficiencies comparable to commonly used transparent electrodes. When the Au-doped SLGNRs are implemented in tandem architecture, a power conversion efficiency (PCE) of 8.48% is achieved. This is the highest efficiency for ITO-free tandem PSCs to date. The improved performance of the Au-doped SLGNR anode is characterized to the structure of the device that enables a hole transport from the active layer into the Au-doped SLGNR anode.