852434-82-3Relevant academic research and scientific papers
Influence of structural variation on the solid-state properties of diketopyrrolopyrrole-based oligophenylenethiophenes: Single-crystal structures, thermal properties, optical bandgaps, energy levels, film morphology, and hole mobility
Kim, Chunki,Liu, Jianhua,Lin, Jason,Tamayo, Arnold B.,Walker, Bright,Wu, Guang,Nguyen, Thuc-Quyen
, p. 1699 - 1709 (2012)
Five new compounds, based on diketopyrrolopyrrole (DPP) and phenylene thiophene (PT) moieties, were synthesized to investigate the effect of structural variations on solid state properties, such as single-crystal structures, optical absorption, energy lev
Small molecule taking spirobifluorene as core and preparation method thereof
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Paragraph 0033; 0034, (2018/05/16)
The invention discloses a small molecule taking spirobifluorene as a core and a preparation method thereof. The small molecule has a structure as shown in a formula, wherein R is an alkyl chain, the number of carbon of which is 1-20; X is H, F, CN or CF3; the molecule has a 3D structure, so that the carrier mobility of the small molecule is promoted. Therefore, four DPP arms are introduced by taking spirobifluorene as center. The molecule is wide and strong in absorption in a visible light range, and has a slightly high LUMO energy level, high charge carrier mobility, good solubleness and a better photovoltaic property.
Narrow band-gap donor-acceptor copolymers based on diketopyrrolopyrrole and diphenylethene: Synthesis, characterization and application in field effect transistor
Zhu, Haoyun,Huang, Wei,Huang, Yuli,Yang, Junwei,Wang, Weizhi
, p. 37 - 44 (2016/01/15)
Three low band-gap diketopyrrolopyrrole based polymers with varying donor groups of furan, thiophene and phenyl were synthesized and then copolymerized with diphenylethene. We investigate the influence of different donor groups and comonomers on the band-gap and field effect transistors. The efficient synthesis of the diketopyrrolopyrrole based copolymers was clearly characterized by a variety of measurements. Two dimensional Grazing Incident X-ray Diffraction was measured to prove that furan and thiophene based copolymers have ordered edge-on structure. These copolymers exhibited strong π-π stacking and excellent hole mobilities when applied in the electric double layer field effect transistors. The high mobility of 2.36 cm2 V-1 s-1 with an on/off ratio of 103 was achieved.
Synthesis and properties of Zn2+/Cd2+-directed self-assembled metallo-supramolecular polymers based on 1,4-diketo-pyrrolo[3,4-c]pyrrole (DPP) derivatives
Chen, Xuegang,Guo, Kai,Li, Fanchao,Zhou, Li,Qiao, Hongbin
, p. 58027 - 58035 (2015/01/16)
New building blocks based on 1,4-diketopyrrolo[3,4-c]pyrrole (DPP), 2,5-bis(2-ethylhexyl)-3,6-bis(5-[p-(2,2':6′,2′′-terpyridine-4′-yl) phenyl]thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione (M1) and 2,5-bis(2-ethylhexyl)-3,6-bis(4-[p-(2,2′:6′,2′′-terpyridine-4′-yl) phenyl]phenyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione (M2) were synthesized by the Suzuki Pd-catalyzed cross-coupling reaction. Under moderate conditions, directed self-assembly polymerizations by the transition metal ions Zn2+ and Cd2+, respectively, were carried out. The metallo-supramolecular polymers P1Zn, P1Cd, P2Zn and P2Cd were obtained and fully characterized. The supramolecular polymers P2Zn and P2Cd, containing DPP modified by a phenyl unit, showed absorption maxima at about 504 and 506 nm in films. In contrast, the polymers P1Zn and P1Cd, in which the thiophene moiety-modified DPP was introduced, exhibited strong and broad visible absorption over 300-800 nm with maxima at about 601 and 598 nm and shoulder peaks at about 665 and 671 nm, respectively. The low band gaps estimated from CV of 1.52, 1.51, 1.58 and 1.58 eV for P1Zn, P1Cd, P2Zn and P2Cd, respectively, are also reported.
A compact diketopyrrolopyrrole dye as efficient sensitizer in titanium dioxide dye-sensitized solar cells
Warnan, Julien,Favereau, Ludovic,Pellegrin, Yann,Blart, Errol,Jacquemin, Denis,Odobel, Fabrice
body text, p. 9 - 15 (2012/04/10)
Two novel TiO2 sensitizers, based on the highly stable diketopyrrolopyrrole (DPP) skeleton, have been synthesized for application in the field of dye sensitized solar cells. The obtained dyes, DPP1 and DPP2 bear respectively a cyanoacrylic acid and a rhodanine acid anchoring groups, thus tuning the extent of the electronic communication with the semi-conducting oxide. The two chromophores were characterized by solution phase spectroscopy and electrochemistry. DFT calculations gave deeper insight into the electronic structure of both dyes, through the disclosure of their frontier orbitals. Photovoltaic performances unravelled the undisputable advantage of DPP1 over DPP2, owing to the combination of a favourable dipolar moment interaction with TiO2, and more intimate orbital blending between the chemisorbed dye and the conduction band. Chenodeoxycholic acid proved to be useful in limiting the formation of dye aggregates, improving to a great extent the performances of DPP1 based DSSCs, reaching in our conditions a 4.47% yield and 57% IPCE at 500 nm.
Red emitting N-functionalized poly(1,4-diketo-3,6-diphenylpyrrolo[3,4-c] pyrrole) (poly-DPP): A deeply colored polymer with unusually large stokes shift
Rabindranath,Zhu,Heim,Tieke
, p. 8250 - 8256 (2007/10/03)
New π-conjugated polymers are described, which entirely consist of aryl-aryl-coupled 1,4-diketo-2,5-dialkyl-3,6-diphenylpyrrolo[3,4-c]pyrrole (DPP) units. The alkyl groups are n-hexyl (4a) or 2-ethylhexyl (4b) groups. The polymers are synthesized using ni
