Synthesis and characterization of donor–acceptor semiconducting polymers containing 4-(4-((2-ethylhexyl)oxy)phenyl)-4H-dithieno[3,2-b:2′,3′-d]pyrrole for organic solar cells

Abstract

In this study, new donor-acceptor (D-A) conjugated polymers based on 4-(4-((2-ethylhexyl)oxy)phenyl)-4H-dithieno[3,2-b:2',3'-d]pyrrole (EPDP) and 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (BTBP) or 4,7-bis(5-bromothiophen-2-yl)benzo[c][1,2,5]thiadiazole (BT) have been synthesized successfully via direct(hetero)arylation polymerization using Pd(OAc)¬2 and PCy3.HBF4 as...

Electrochromic Insight on Electro‐Deposited Copolymers of Push‐Pull Conjugated Systems with 3,4‐Ethylenedioxythiophene (EDOT) and Other Conjugated Units

“…Hacioglu et al performed an electrochemical copolymerization using 9-(2-(4-(Phenyldiazenyl) phenoxy) ethyl)-3,6-di-(thiophen-2-yl)-9H-carbazole (12) and EDOT with two different co-monomer feed ratios, 1 : 3 and 1 : 5 (monomer : EDOT). [53] As a result of electrochemical analysis, it was reported that both copolymers have p-type doping behavior.…”

“…[3,4] Moreover, full color palette including green can be obtained by molecular design. [5,6] Push-pull conjugated polymers have been widely used for various applications such as supercapacitors, [7] displays, [8] light emitting diodes, [9][10] organic solar cells, [11][12] field effect transistors, [13] electrochemical and optical sensors, [14][15][16][17] and so forth.…”

Recent progress of ultra-narrow-bandgap polymer donors for NIR-absorbing organic solar cells

“…Nguyen et al reported dithieno[3,2- b :2,3- d ]pyrrole (DTP), which could reduce the optical band gap with high charge carrier mobility owing to the electron-rich N atom on DTP, and a polymer-based polymer donor (DPP-P3). 45 DPP-P3 was found to have an absorption range up to 900 nm with E g = 1.31 eV, and the corresponding fullerene-based OSC exhibited a maximum PCE of 4.85%.…”

Syntheses of novel fluorinated dibenzo[a,c]phenazine comprising polymers for electrochromic device applications

“…[1][2][3][4][5] The discovery of these fascinating, multifunctional materials has opened a new research area and several researchers are focused on the field of conjugated polymers and their potential usage in different application areas such as electrochromic devices (ECDs), organic photovoltaics (OPVs), organic light emitting diodes (OLEDs), field effect transistors (FETs), biosensors, and super capacitors (SCs). [6][7][8][9][10][11][12][13][14] There are some crucial parameters for conjugated polymers such as the band gap (E g ), absorption in the visible region and energy levels. The Highest Occupied Molecular Orbital (HOMO) and the Lowest Unoccupied Molecular Orbital (LUMO) affect the performance of conducting polymers (CPs) in these applications.…”

“…1–5 The discovery of these fascinating, multifunctional materials has opened a new research area and several researchers are focused on the field of conjugated polymers and their potential usage in different application areas such as electrochromic devices (ECDs), organic photovoltaics (OPVs), organic light emitting diodes (OLEDs), field effect transistors (FETs), biosensors, and super capacitors (SCs). 6–14…”