267221-90-9Relevant articles and documents
An Efficient Electrochromic Supercapacitor Based on Solution-Processable Nanoporous Poly{tris[4-(3,4-ethylenedioxythiophene)phenyl]amine}
Lv, Yaokang,Yang, Xing,Du, Weishi,Ma, Peihua,Wang, Hu,Bonnefont, Antoine,Wright, Dominic S.,Ruhlmann, Laurent,Zhang, Cheng
, p. 3844 - 3854 (2020)
A new green synthetic route to tris[4-(3,4-ethylenedioxythiophene)phenyl]amine (TEPA) monomer has been developed and the molecular structure of TEPA has been determined by using single-crystal XRD. Solution-processable nanoporous poly{tris[4-(3,4-ethylene
Star-shaped perylene-oligothiophene-triphenylamine hybrid systems for photovoltaic applications
Cremer, Jens,Baeuerle, Peter
, p. 874 - 884 (2006)
A series of novel star-shaped donor-acceptor systems is described. These molecules consist of three head-to-tail coupled oligo(3-hexylthiophene) arms covalently linked to a triphenylamine core which acts as the donor part. At the termini perylene monoimid
Deciphering the Multifarious Charge-Transport Behaviour of Crystalline Propeller-Shaped Triphenylamine Analogues
Ambili,Sasikumar, Devika,Hridya,Hariharan, Mahesh
, p. 1992 - 2002 (2019)
A collection of para-substituted propeller-shaped triphenylamine (TPA) derivatives have been computationally investigated for charge-transport characteristics exhibited by the derivatives by using the Marcus–Hush formalism. The various substituents chosen herein, with features that range from electron withdrawing to electron donating in nature, play a key role in defining the reorganisation energy and electronic coupling properties of the TPA derivatives. The TPA moiety is expected to possess weak electronic coupling on the basis of poor orbital overlap upon aggregation, owing to the restriction imposed by the propeller shape of the TPA core. However, the substituent groups attached to the TPA core can significantly dictate the crystal-packing motif of the TPA derivatives, wherein the variety of noncovalent intermolecular interactions subsequently generated drive the packing arrangement and influence electronic coupling between the neighbouring orbitals. Intermolecular interactions in the crystalline architecture of TPA derivatives were probed by using Hirshfeld and quantum theory of atoms-in-molecules techniques. Furthermore, symmetry-adapted perturbation theory analysis of the TPA analogues has revealed that a periodic arrangement of energetically stable dimers with significant electronic coupling is essential to contribute high charge-carrier mobility to the overall crystal.
Significantly improved photovoltaic performance of the triangular-spiral TPA(DPP-PN)3 by appending planar phenanthrene units into the molecular terminals
Zhang, Youming,Bao, Xichang,Xiao, Manjun,Tan, Hua,Tao, Qiang,Wang, Yafei,Liu, Yu,Yang, Renqiang,Zhu, Weiguo
, p. 886 - 893 (2015)
A novel triangular-spiral conjugation molecule of TPA(DPP-PN)3 using triphenylamine (TPA) as the donor core, diketopyrrolopyrrole (DPP) as the acceptor arm and phenanthrene (PN) as the planar arene terminal, as well as its counterpart of TPA-3DPP without the PN terminal, were prepared. Their UV-vis absorption, electrochemistry and thermal stability, as well as hole mobility were investigated. Significantly red-shifted UV-vis absorption profiles were observed for TPA(DPP-PN)3 instead of TPA-3DPP in solution and solid state. A hole mobility of 1.67 × 10-4 cm2 V-1 s-1 was obtained for the TPA(DPP-PN)3/PC71BM blended film, which is 2.1 times higher than that of the TPA-3DPP/PC71BM blended film. Furthermore, the TPA(DPP-PN)3/PC71BM-based organic solar cells presented better photovoltaic property with a maximum power conversion efficiency of 3.67%, which is 1.9 times higher than that of TPA-3DPP/PC71BM-based devices. The results confirm that appending planar PN terminals to TPA-3DPP with a triangular-spiral shape is an efficient approach to improve the photovoltaic performance of its resulting molecules.
Administration of the D-A structure and steric hindrance effect to construct efficient red emitters for high-performance OLEDs with low efficiency roll-off
Ding, Guan-Yu,Zang, Chun-Xiu,Zhang, Han,Su, Zhong-Min,Li, Guang-Fu,Wen, Li-Li,Han, Xu,Xie, Wen-Fa,Shan, Guo-Gang
, (2021/05/05)
Restricted by the energy-gap law and π-π stacking, developing highly efficient red emitting materials and corresponding organic light-emitting diodes (OLEDs) having the emission over 600 nm is a formidable challenge. Three red emitters, namely DPABz-TPA,
