Wide bandgap OPV polymers based on pyridinonedithiophene unit with efficiency &gt;5%

Schneider, Alexander M.; Lu, Luyao; Manley, Eric F.; Zheng, Tianyue; Шарапов, В. И.; Xu, Tao; Marks, Tobin J.; Chen, Lin X.; Yu, Luping

doi:10.1039/c5sc01427a

Cited by 35 publications

(18 citation statements)

References 50 publications

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“…Yu et al reported a novel series of WBG conjugated polymers based on the N‐alkyl 2‐pyridone dithiophene unit, which were developed from their previous investigations on fused amide‐linked systems to create the thieno[2′,3′:5′,6′]pyrido[3,4‐g]thieno[3,2‐c]isoquinoline‐5,11(4H,10H)‐dione (TPTI) monomer ( P43 ‐ P47 ). The best performance of this type of donor was achieved from the P47 :PC 71 BM blend, with a PCE of 5.33% presented . The dithienosilole (DTS)‐thiazolothiazole‐based D‐A copolymer PSEHTT ( P48 ) presented a wide bandgap of 1.82 eV; the photovoltaic properties of P48 were investigated in an ITO/PEDOT/ P48 :PC 71 BM/LiF/Al structure.…”

Section: Wbg Copolymersmentioning

confidence: 99%

Recent Advances in Wide‐Bandgap Photovoltaic Polymers

2017

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The past decade has witnessed significant advances in the field of organic solar cells (OSCs). Ongoing improvements in the power conversion efficiency of OSCs have been achieved, which were mainly attributed to the design and synthesis of novel conjugated polymers with different architectures and functional moieties. Among various conjugated polymers, the development of wide-bandgap (WBG) polymers has received less attention than that of low-bandgap and medium-bandgap polymers. Here, we briefly summarize recent advances in WBG polymers and their applications in organic photovoltaic (PV) devices, such as tandem, ternary, and non-fullerene solar cells. Addtionally, we also dissuss the application of high open-circuit voltage tandem solar cells in PV-driven electrochemical water dissociation. We mainly focus on the molecular design strategies, the structure-property correlations, and the photovoltaic performance of these WBG polymers. Finally, we extract empirical regularities and provide invigorating perspectives on the future development of WBG photovoltaic materials.

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Section: Wbg Copolymersmentioning

confidence: 99%

Recent Advances in Wide‐Bandgap Photovoltaic Polymers

2017

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“…Rational design of D and A units could produce high‐performance D–A copolymers . Among the acceptor units, polycyclic aromatic lactams (PALs) demonstrated great potential in developing efficient D–A copolymers . Benefiting from their strong electron‐withdrawing capability and good planarity, PAL‐based D–A copolymers usually exhibit deep HOMO levels and high hole mobilities.…”

Section: Optical and Electrochemical Data For The Polymersmentioning

confidence: 99%

A Thieno[3,2‐c]Isoquinolin‐5(4H)‐One Building Block for Efficient Thick‐Film Solar Cells

Xiao

Wang

et al. 2018

Advanced Energy Materials

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An aromatic lactam acceptor unit, thieno[3,2‐c]isoquinolin‐5(4H)‐one (TIQ), is developed. Compared with its analogues, dithieno[3,2‐b:2′,3′‐d]pyridin‐5(4H)‐one (DTP) and phenanthridin‐6(5H)‐one (PN), TIQ shows its advantage in constructing donor–acceptor (D–A) copolymers for efficient solar cells. TIQ‐based D–A copolymer PTIQ4TFBT delivers a power conversion efficiency (PCE) of 10.16% in polymer:fullerene solar cells, while those based on DTP and PN copolymers, PDTP4TFBT and PPN4TFBT, afford PCEs around 8.5%. The higher performance of PTIQ4TFBT:PC71BM solar cells originates from enhanced short‐circuit current density (Jsc) and fill factor (FF), because of favorable morphology, less bimolecular recombination, and balanced charge transport in the active layer. Moreover, the performance for PTIQ4TFBT:PC71BM solar cells is less sensitive to active layer thickness than PDTP4TFBT:PC71BM and PPN4TFBT:PC71BM solar cells. Over 8% PCEs can be obtained from PTIQ4TFBT:PC71BM solar cells when the active layer thickness is over 500 nm.

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“…[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] To tune the optical and electrical properties of the available active materials, new chemical motifs incorporating fused rings and alternating donor-acceptor (D-A) structures in the polymer chain have been designed and synthesized. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] Benzothiadiazole (BT) and its analogs have been used as electron acceptor groups in conjunction with various donor units such as cyclopentadithiophene (CPDT); compounds containing these acceptor groups exhibit lower-energy levels and a reduction in the band gap compared with other D-A alternating copolymers. [23][24][25][26][27][28][29] Since the development of poly [4,4- Figure 1), one of the first efficient third-generation donor-type conjugated polymers, …”

Section: Introductionmentioning

confidence: 99%

Double acceptor donor–acceptor alternating conjugated polymers containing cyclopentadithiophene, benzothiadiazole and thienopyrroledione: toward subtractive color organic photovoltaics

Chang

Muto

Kondo

et al. 2016

Polym J

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Double acceptor copolymers comprising benzothiadiazole (BT), thieno [3,4-c]pyrrole-4,6-dione (TPD) and two cyclopentadithiophene (CPDT) units, and a series of copolymers comprising CPDT-A-CPDT (A: acceptor = BT or TPD) with different numbers of thiophene units have been synthesized by combinations of Suzuki and Stille coupling, direct arylation and oxidative polymerization. Ultraviolet-visible absorption spectra and cyclic voltammograms were measured to compare the optical and electrochemical properties of the polymers. The double acceptor copolymer exhibited hybridized features resulting from the presence of both BT, as well as TPD. On the other hand, an increase in the number of electron donor units resulted in an increase in the band gap for both the TPD and BT series. Organic photovoltaics (OPV) devices were fabricated using the polymers and a fullerene derivative. These donor-acceptor alternating copolymers showed higher OPV performance (power conversion efficiency = 3-4%) than other polymers. The active layer comprising the double acceptor polymer and a fullerene derivative showed subtractive color resulting from wide-range visible light absorption, which is advantageous for developing transparent building-integrated OPVs. The OPV performance of BT-based copolymers synthesized via direct arylation was comparable or lower compared with those prepared by conventional cross-coupling polymerizations.

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Wide bandgap OPV polymers based on pyridinonedithiophene unit with efficiency >5%

Abstract: We report the properties of a new series of wide band gap photovoltaic polymers based on the N-alkyl 2-pyridone dithiophene (PDT) unit.

Cited by 35 publications

References 50 publications

Recent Advances in Wide‐Bandgap Photovoltaic Polymers

Recent Advances in Wide‐Bandgap Photovoltaic Polymers

A Thieno[3,2‐c]Isoquinolin‐5(4H)‐One Building Block for Efficient Thick‐Film Solar Cells

Double acceptor donor–acceptor alternating conjugated polymers containing cyclopentadithiophene, benzothiadiazole and thienopyrroledione: toward subtractive color organic photovoltaics

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