4.7 Article

Efficient and stable panchromatic squaraine dyes for dye-sensitized solar cells

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 10, Pages 2874-2876

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cc05378c

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Funding

  1. WCU(MEST) [R31-2008-000-10035-0]
  2. MEST of Korea for the Center for Next Generation DSSCs [2010-001842]

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A new series of stable, unsymmetrical squaraine near-IR sensitizers (JK-216 and JK-217), which are assembled using both thiophenyl pyrrolyl and indolium groups, exhibit a panchromatic light harvesting up to 780 nm. The JK-216 based cell exhibited a record efficiency of 6.29% for near-IR DSSCs. In addition, the JK-217 device showed an excellent stability under a light soaking test at 60 degrees C for 1000 h.

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