4.7 Article

Controlling the optoelectronic properties of narrow bandgap organic chromophores upon isoelectronic bridgehead substitution

Journal

DYES AND PIGMENTS
Volume 158, Issue -, Pages 233-239

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2018.05.034

Keywords

Isoelectronic bridgehead; Self-assembly; Organic solar cell; Processing additive; Organic chromophore

Funding

  1. Basic Science Research Program through the National Research Foundation of Korea (NRF)
  2. Ministry of Science, ICT & Future Planning [2017R1A1A1A05000772, 2015R1C1A1A02037251]
  3. Industrial Core Technology Development Program - Ministry of Trade, Industry and Energy (MI, Korea) [10062269]
  4. Korea Evaluation Institute of Industrial Technology (KEIT) [10062269] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
  5. National Research Foundation of Korea [2015R1C1A1A02037251] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Two types of narrow bandgap organic molecules were synthesized by changing two bridgehead atoms to examine the effect on the optoelectronic properties. Notably, it was found that the bridgehead atoms mostly affected their crystallinity and that the intermolecular forces and their optoelectronic properties were controllable upon manipulating the forces by processing additives.

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