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Dae Hee Lee on Muck Rack

Dae Hee Lee

As seen in: Chemistry World
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Articles

(D)text-decoration:underline"n-σ-(A)text-decoration:underline"m Type Partially Conjugated Block Copolymer and its Performance in Single-Component Polymer Solar Cells

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By Dae Hee Lee, Ji Hyung Lee, Hyung Jong Kim, Suna Choi
| Royal Society of Chemistry Verified
We synthesized two types of novel poly(3-alkylthiophene)-free (D) n-b-(A) m conjugated block copolymers: PTQI-block-PNDISs. PTQI-b-PNDIS is the fully conjugated block copolymer, in which the donor block is connected to the acceptor block via a ?-conjugated unit. In addition, the donor block was connected to an acceptor block through a non-conjugated alkylene spacer, yielding PTQI-b-PNDISL, which is a partially conjugated block copolymer.
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New n-type semiconducting molecule with asymmetric indenothiophene core for high-performing non-fullerene type organic solar cell

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By Gi Eun Park, Suna Choi, Dae Hee Lee, Young-Un Kim
| Royal Society of Chemistry Verified
A new asymmetric n?type semiconducting molecule (PhITBD) with an indenothiophene core was designed and synthesized by tethering 2?(benzo[c][1,2,5]?thiadiazol?4?ylmethylene)?malononitrile (BM) as the terminal groups, and applied to polymer solar cells (PSCs). The PSCs with asymmetric PhITBD displayed improved power conversion efficiencies (PCE) of 6.57%, when compared to the symmetric molecule, IDT?2BM.
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Perylene diimide isomers containing a simple sp3-core for non-fullerene-based polymer solar cells

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By Gi Eun Park, Suna Choi, Dae Hee Lee, Mallesham Godumala
| Chemistry World Verified
In order to investigate the effect of the geometries of perylene diimide (PDI)-based small molecules, five different isomers were synthesized by using a cyclohexane core as a simple sp -? core.
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