- Butterfly Effects Arising from Starting Materials in Fused-Ring Electron Acceptors
-
We designed and synthesized a series of fused-ring electron acceptors (FREAs) based on naphthalene-fused octacyclic cores end-capped by 3-(1,1-dicyanomethylene)-5,6-difluoro-1- indanone (NOICs) using a bottom-up approach. The NOIC series shares the same end groups and side chains, as well as similar fused-ring cores. The butterfly effects, arising from different methoxy positions in the starting materials, impact the design of the final FREAs, as well as their molecular packing, optical and electronic properties, charge transport, film morphology, and performance of organic solar cells. The binary-blend devices based on this NOIC series show power conversion efficiencies varying from 7.15% to 14.1%, due to the different intrinsic properties of the NOIC series, morphologies of blend films, and voltage losses of devices.
- Li, Tengfei,Wu, Yao,Zhou, Jiadong,Li, Mengyang,Wu, Jingnan,Hu, Qin,Jia, Boyu,Pan, Xiran,Zhang, Maojie,Tang, Zheng,Xie, Zengqi,Russell, Thomas P.,Zhan, Xiaowei
-
-
Read Online
- Conjugated NDI-donor polymers: Exploration of donor size and electrostatic complementarity
-
Conjugated donor-acceptor copolymers comprised of electron-deficient 1,4,5,8-naphthalenetetracarboxylic diimide (NDI) linked to a series of relatively electron-rich aromatics via ethynyl spacers were synthesized and characterized. While LUMO levels remained constant at -3.75 eV, HOMO levels were sensitive to the relatively electron-rich aromatic donors and systematically tuned from -5.68 to -5.17 eV. Regardless of the electron-rich comonomer, fluorescence and X-ray diffraction data were consistent with the polymer chains being assembled through the stacking of NDI moieties in an offset face-to-face fashion rather than alternating donor-acceptor stacks.
- Alvey, Paul M.,Ono, Robert J.,Bielawski, Christopher W.,Iverson, Brent L.
-
p. 718 - 726
(2013/03/29)
-
- Tuning the size of macrocyclic cavities in trianglimine macrocycles
-
The synthesis of aromatic dicarboxaldehydes is described along with their reactivity in the [3 + 3] cyclocondensation reaction with (1R,2A)- diaminocyclohexane to give trianglimine macrocycles. In particular, the scope and limitation of the reaction with regard to complete control of the cavity size of the macrocycles is discussed producing a total of 11 macrocycles with different cavity sizes ranging from 9 to 23 A. The Royal Society of Chemistry 2005.
- Kuhnert, Nikolai,Burzlaff, Nicolai,Patel, Chirag,Lopez-Periago, Ana
-
p. 1911 - 1921
(2007/10/03)
-
- Preparation of some 4,8-dimethoxy-diformylnaphthalenes
-
Dibromination of 1,5-dimethoxynaphthalene (1) yields three different dibromo-1,5-dimethoxynaphthalenes. These are converted to 1,5-dimethoxynaphthalenedicarbaldehydes.
- Sylvester-Hvid,Sorensen,Schaumburg,Bechgaard,Christensen
-
p. 1905 - 1914
(2007/10/02)
-