Application of a novel, non-doped, organic hole-transport layer into single-walled carbon nanotube/silicon heterojunction solar cells

Tom Grace, Hong Duc Pham, Christopher T. Gibson, Joseph G. Shapter, Prashant Sonar

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The search for novel solar cell designs as an alternative to standard silicon solar cells is important for the future of renewable energy production. One such alternative design is the carbon nanotube/silicon (CNT/Si) heterojunction solar device. In order to improve the performance of large area CNT/Si heterojunction solar cells, a novel organic material, 4,10-bis(bis(4-methoxyphenyl)amino)naptho[7,8,1,2,3-nopqr]tetraphene-6,12-dione (DPA-ANT-DPA (shortened to DAD), was added as an interlayer between the CNT film and the silicon surface. The interlayer was examined with SEM and AFM imaging to determine an optimal thickness for solar cell performance. The DAD was shown to improve the device performance with the efficiency of large area devices improving from 2.89% ± 0.40% to 3.34% ± 0.10%.

Original languageEnglish
Article number4721
Number of pages11
JournalApplied Sciences (Switzerland)
Volume9
Issue number21
DOIs
Publication statusPublished - 5 Nov 2019

Bibliographical note

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).

Keywords

  • hole transport layers
  • organic conductors
  • solar cells
  • thin films

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