Double Co-deposited Layered Organic Photovoltaic Cells with Sensitivity from Visible to Near-Infrared Regions

, and

Published 21 March 2013 • Copyright (c) 2013 The Japan Society of Applied Physics
, , Citation Kazuya Yokoyama et al 2013 Jpn. J. Appl. Phys. 52 04CR06 DOI 10.7567/JJAP.52.04CR06

Download Article PDF

Article metrics

109 Total downloads

Share this article

Author affiliations

1 Institute for Molecular Science, Okazaki, Aichi 444-8787, Japan

2 JST, CREST Chiyoda, Tokyo 102-0075, Japan

Dates

  1. Received 23 September 2012
  2. Accepted 13 December 2012
  3. Published

Buy this article in print

Journal RSS
Sign up for new issue notifications
1347-4065/52/4S/04CR06

Abstract

Organic solar cells connecting two photoactive co-deposited layers, i.e., a visible-light-sensitive front layer consisting of metal-free phthalocyanine (H2Pc) and fullerene (C60) and a near-infrared (NIR)-light-sensitive back layer consisting of lead phthalocyanine (PbPc) and C60, were fabricated. The internal quantum efficiency in the visible and NIR regions reached 48 and 43%, respectively. A conversion efficiency of 1.53% was obtained. A model of a function-separated mechanism for the cell, consisting of photocarrier generation by J-PbPc and H2Pc aggregates, hole transport by H-PbPc and H2Pc aggregates, and electron transport by C60, was proposed.

Export citation and abstract BibTeX RIS

Previous article in issue
Next article in issue
10.7567/JJAP.52.04CR06