A new V-shaped triphenylamine/diketopyrrolopyrrole containing donor material for small molecule organic solar cells

Wang, Shifan; Yang, Jie; Zhang, Zhiguo; Hu, Yuanyuan; Cao, Xudong; Li, Hai; Tao, Youtian; Li, Yongfang; Huang, Wei

doi:10.1039/c5ra07383a

Cited by 16 publications

(9 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The higher PCE of 3.42% were obtained in the solution‐processed f7 /PC 71 BM‐based solar cells while f8 exhibited the highest PCE of 3.67% with an increased FF of 51% . A new V‐shaped small molecule, f9 , containing TPA core, two DPP arms and two end‐capped hexylbithiophene units, was designed by Tao et al With a broad absorption, a low optical bandgap of 1.61 eV, an optimized PCE of 3.81% with high FF of 63% was achieved via adding 0.1% DIO as solvent additive to form well‐defined phase‐separated film morphology …”

Section: Dpp‐based Photovoltaic Small Molecules As Electron Donorsmentioning

confidence: 93%

Design of Diketopyrrolopyrrole (DPP)‐Based Small Molecules for Organic‐Solar‐Cell Applications

et al. 2016

View full text Add to dashboard Cite

After the first report in 2008, diketopyrrolopyrrole (DPP)-based small-molecule photovoltaic materials have been intensively explored. The power conversion efficiencies (PCEs) for the DPP-based small-molecule donors have been improved up to 8%. Furthermore, through judicious structure modification, DPP-based small molecules can also be converted into electron-acceptor materials, and, recently, some exciting progress has been achieved. The development of DPP-based photovoltaic small molecules is summarized here, and the photovoltaic performance is discussed in relation to structural modifications, such as the variations of donor-acceptor building blocks, alkyl substitutions, and the type of conjugated bridges, as well as end-capped groups. It is expected that the discussion will provide a guideline in the exploration of novel and promising DPP-containing photovoltaic small molecules.

show abstract

Section: Dpp‐based Photovoltaic Small Molecules As Electron Donorsmentioning

confidence: 93%

Design of Diketopyrrolopyrrole (DPP)‐Based Small Molecules for Organic‐Solar‐Cell Applications

et al. 2016

View full text Add to dashboard Cite

show abstract

“…60 All target small molecules were synthesized via a Pd-catalysed, direct C-H arylation reaction between DPPT 2 and the corresponding dibrominated aromatic units. DPPT 2 was synthesized and puried according to our previous work.…”

Section: Resultsmentioning

confidence: 99%

Direct C–H arylation for various Ar-cored diketopyrrolopyrrole containing small molecules in solution-processed field-effect transistors

et al. 2016

Self Cite

View full text Add to dashboard Cite

Direct (hetero) C-H arylation is an advantageous tool for the synthesis of diketopyrrolopyrrole (DPP) derivatives, because of fewer synthetic steps, better atom economy and being environmentally friendly.Herein, four diketopyrrolopyrrole containing linear structured D-A-p-A-D small molecules Ar(DPPT 2 ) 2 are facilely synthesized in high yields of 73-82% through C-H direct arylation, where Ar (from electrondonating 1,4-phenyl, 1,4-naphthyl or 9,10-anthryl to electron-accepting 2,5-pyridyl) is functionalized as the core p-bridge structure, DPP as the arm and bithiophene as end-groups. The dihedral angles between the central aryl rings and DPPT 2 arms for the optimized geometries of Ph(DPPT 2 ) 2 , NA(DPPT 2 ) 2 and AN(DPPT 2 ) 2 gradually increases from 20.3, 44.7 to 93.1 , respectively, which is 18.7 for the pyridyl cored Py(DPPT 2 ) 2 . It is found that the optoelectronic properties can be elaborately tuned by variation of the central aryl bridge. Moreover, the coplanarity of the molecules as well as the electronic properties of central Ar units significantly affect the charge transport properties. Ph(DPPT 2 ) 2 possessing the best conjugated backbone planarity exhibits the highest hole mobility of 0.12 cm 2 V À1 s À1 among the three Ar(DPPT 2 ) 2 compounds based on the electron-donating phenyl, naphthyl and anthryl cores, while the electron-withdrawing pyridyl core Py(DPPT 2 ) 2 shows a poor hole mobility of 6.47 Â 10 À4 cm 2 V À1 s À1 despite of it having the most planar structure. Fig. 10 (a) Typical transfer and (b) output plot (V DS ¼ À60 V) of organic field-effect transistors annealed at 120 C from spin-casted Ph(DPPT 2 ) 2 , the device with PMMA as dielectrics.This journal is

show abstract

“…THF and toluene were dried over Na/benzophenoneketyl and freshly distilled prior to use. 3,6-Dithien-2-yl-2,5-di(2-decyltetradecanyl)-pyrrolo [3,4-c]pyrrole-1,4-dione (M1) was prepared according to established literature procedures, 42,43 and the monomer TTF (M2) was purchased from Suna Tech Inc. ) at a potential scan rate of 100 mV s À1 , along with an Ag/AgCl reference electrode and a platinum wire counter electrode. The polymer sample was coated on the platinum sheet of working electrode.…”

Section: Methodsmentioning

confidence: 99%

An ultra-low bandgap diketopyrrolopyrrole (DPP)-based polymer with balanced ambipolar charge transport for organic field-effect transistors

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

A new V-shaped triphenylamine/diketopyrrolopyrrole containing donor material for small molecule organic solar cells

Cited by 16 publications

References 51 publications

Design of Diketopyrrolopyrrole (DPP)‐Based Small Molecules for Organic‐Solar‐Cell Applications

Design of Diketopyrrolopyrrole (DPP)‐Based Small Molecules for Organic‐Solar‐Cell Applications

Direct C–H arylation for various Ar-cored diketopyrrolopyrrole containing small molecules in solution-processed field-effect transistors

An ultra-low bandgap diketopyrrolopyrrole (DPP)-based polymer with balanced ambipolar charge transport for organic field-effect transistors

Contact Info

Product

Resources

About