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Metallic nanomesh electrodes with controllable optical properties for organic solar cells

Link:
Author(s):
Jinfeng Zhu, Xiaodan Zhu, Ryan Hoekstra, Lu Li, Faxian Xiu, Mei Xue, Baoqing Zeng, and Kang L. Wang
Projects:
Clean Energy for Green Industry at UCLA
Category:
Student/Faculty Work
Tags:
electrodes, evaporation, gold, metallic thin films, nanofabrication, nanolithography, Nanostructured Materials, polymers, power conversion, solar cells, transparency, Organic Solar Cells, organic photovoltaics
Type:
faculty research, journal article
Published:
Applied Physics Letters 2012
Availability:
Freely Available
Privacy:
Public

Description:

We have fabricated a metallic nanomesh using nanosphere lithography and metal evaporation. The metallic nanomesh has a precisely controlled nanostructure showing excellent uniformity with hexagonally arrayed periodic circular holes. A P3HT:PCBM organic solar cell, with the gold nanomesh electrode, demonstrates a high fill factor of 61% and a considerable power conversion efficiency of 3.12%. Electromagnetic simulation indicates that the optical properties of the metallic nanomesh can be optimized for organic photovoltaic devices by tuning the film thickness, hole diameter, and periodicity. These results show the promising potential of using a metallic nanomesh as the transparent electrode in organic solar cells.

Posted By:
Mariko Walton
Posted:
May 11, 2012