338469-45-7Relevant articles and documents
Fullerene-free small molecule organic solar cells with a high open circuit voltage of 1.15 V
Ni, Wang,Li, Miaomiao,Kan, Bin,Liu, Feng,Wan, Xiangjian,Zhang, Qian,Zhang, Hongtao,Russell, Thomas P.,Chen, Yongsheng
, p. 465 - 468 (2016)
A new small molecule named DTBTF with thiobarbituric acid as a terminal group was designed and synthesized as an acceptor for organic photovoltaic applications. DTBTF exhibits strong absorption in the visible region, and a relatively high lying LUMO energy level (-3.62 eV). All-small-molecule organic solar cells based on DR3TSBDT:DTBTF blend films show a considerable PCE of 3.84% with a high Voc of 1.15 V.
Modular Synthesis of Spirocyclic Germafluorene-Germoles: A New Family of Tunable Luminogens
Shynkaruk, Olena,He, Gang,McDonald, Robert,Ferguson, Michael J.,Rivard, Eric
, p. 248 - 257 (2016)
The zirconium-mediated synthesis of a new class of air-stable spirocyclic germafluorene-germole (SGG) luminogens is reported. These species contain ring-fused germafluorene and germole units that display color-tunable fluorescence when peripheral aryl sub
COMPOUND FOR ORGANIC PHOTOELECTRIC DEVICE AND ORGANIC PHOTOELECTRIC DEVICE IMAGE SENSOR, AND ELECTRONIC DEVICE INCLUDING THE SAME
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, (2017/03/21)
A compound for an organic photoelectric device includes at least one of a compound represented by Chemical Formula 1, a compound represented by Chemical Formula 2 and a combination thereof.
Design and synthesis of 9,9-dioctyl-9H-fluorene based electrochromic polymers
Jiang, Qinglin,Zhen, Shijie,Mo, Daize,Lin, Kaiwen,Ming, Shouli,Wang, Zhipeng,Liu, Congcong,Xu, Jingkun,Yao, Yuanyuan,Duan, Xuemin,Zhu, Danhua,Shi, Hui
, p. 325 - 334 (2016/01/25)
Two novel heterocycle-fluorene-heterocycle monomers, 2,2′-(9,9-dioctyl-9H-fluorene-2,7-diyl)dithiophene (Th-F-Th) and 5,5′-(9,9-dioctyl-9H-fluorene-2,7-diyl)bis(2,3-dihydrothieno[3,4-b][1,4]dioxine) (EDOT-F-EDOT), were synthesized via Stille coupling reaction and electropolymerized to form corresponding polymers P(Th-F-Th) and P(EDOT-F-EDOT). Furthermore, the optoelectronic properties of the obtained monomers and polymers were explored using cyclic voltammetry (CV), UV-vis, and emission spectra and in situ spectroelectrochemical techniques. The band gap values of monomers calculated by DFT were 3.75 eV for EDOT-F-EDOT and 4.03 eV for Th-F-Th, while that of P(EDOT-F-EDOT) and P(Th-F-Th) were brought down to 1.70 and 2.10 eV, respectively. Both polymers exhibited excellent redox activity and electrochromic performance. P(EDOT-F-EDOT) exhibited a maximum optical contrast of 25.8% at 500 nm in visible region with a response time of 1.2 s. In addition, the coloration efficiency of P(EDOT-F-EDOT) was calculated to be 220 cm2 C-1.
Polyarylene synthesis by cross-coupling with HOMSi reagents
Shimizu, Kenta,Minami, Yasunori,Nakao, Yoshiaki,Ohya, Ken-Ichiro,Ikehira, Hideyuki,Hiyama, Tamejiro
supporting information, p. 45 - 47 (2013/02/25)
Cross-coupling reaction of dibromoarenes with HOMSi reagents (organo[2-(hydroxymethyl)phenyl]dimethylsilanes), or alternatively bromoarenes with arylene-bisHOMSi reagents, proceeded smoothly in the presence of a Pd catalyst and a weak base, and ter- or quaterarenes are produced in excellent yields. The present reaction was successfully applied to polyarylene synthesis using 4,7-dibromobenzothiadiazole or a 2,7-dibromofluorene derivative along with a 2,7-fluorenylenebisHOMSi reagent.
Introduction of perylene units for enhanced interchain interaction in conjugated polymers for organic photovoltaic devices
Kim, Ji-Hoon,Kim, Hee Un,Mi, Dongbo,Jin, Sung-Ho,Shin, Won Suk,Yoon, Sung Cheol,Kang, In-Nam,Hwang, Do-Hoon
experimental part, p. 2367 - 2376 (2012/06/29)
A series of semiconducting copolymers, poly[2,7-(9,9′- dioctylfluorene)-alt-5,5′-(4′,7′-di-2-thienyl-2′, 1′,3′-benzothiadiazole)] (PFDTBT), poly[2,2′-(9,9-dioctyl-9H- fluorene-2,7-diyl)dithiophene-alt-5,5′-(4′,7′-di-2-thienyl- 2′,1′,3′-benzothiadiazole)] (PFD2TBT), and their ter-polymers containing perylene units were synthesized using Suzuki coupling polymerization. The perylene units were introduced to improve the charge-transport ability by enhancing the π-π interaction between polymer chains. The resulting polymers were characterized by 1H NMR, elemental analysis, DSC, and TGA. The synthesized polymers were soluble in common organic solvents, and formed smooth and uniform spin-coated thin films. All of the polymers studied were found to exhibit good thermal stability, losing less than 5% of their weight upon heating to approximately 350 °C. Perylene- containing polymers showed higher field-effect mobilities than the corresponding PFDTBT or PFD2TBT polymers because of the enhanced π-π interaction between polymer chains upon the introduction of perylene units. Bulk heterojunction solar cells were fabricated with configuration of ITO/PEDOT:PSS/polymer:PC71BM/ TiOx/Al. The devices using the perylene-containing polymers showed higher short-circuit currents, and fill factors than the corresponding PFDTBT or PFD2TBT devices. One of the fabricated devices using a perylene-containing copolymer showed a maximum power conversion efficiency of 3.16%, with a short circuit current density of 9.61 mA/cm2, open circuit voltage of 0.81 V, and fill factor of 41%.
CONJUGATED COMPOUND, AND ORGANIC THIN FILM AND ORGANIC THIN FILM ELEMENT EACH COMPRISING SAME
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Page/Page column 39, (2012/02/04)
A conjugated compound having a group represented by formula (I) and/or formula (II). [In the formulas, Ar represents an optionally substituted trivalent aromatic hydrocarbon or optionally substituted trivalent heterocyclic group, and A represents hydrogen, a halogen atom or a monovalent group. When multiple A groups are present they may be the same or different, and at least one A represents an electron-withdrawing group. Ar' represents an optionally substituted C6 or greater divalent aromatic hydrocarbon or optionally substituted C4 or greater divalent heterocyclic group, and R1 and R2 are the same or different and each represents hydrogen, a halogen atom or a monovalent group, while A' represents hydrogen, a halogen atom or a monovalent group. When multiple A' groups are present they may be the same or different, and at least one A' represents an electron-withdrawing group.]
Preparation and properties of conjugated polymers containing 1,2-diaryl-3,4-bis[(2,4,6-tri-t-butylphenyl)phosphinidene]cyclobutene units
Kawasaki, Subaru,Ujita, Junichi,Toyota, Kozo,Yoshifuji, Masaaki
, p. 724 - 725 (2007/10/03)
Conjugated polymers containing sterically protected 1,2-di(2-thienyl)-3,4- diphosphinidenecyclobutene units were prepared and their properties were investigated. Red shifts of the polymers were observed, compared to the corresponding monomeric species, wh
