All-polymer solar cells with perylenediimide polymer acceptors

Guo, Yangyang; Li, Yun-ke; Han, Han; Yan, He; Zhao, Dahui

doi:10.1007/s10118-017-1893-x

Cited by 30 publications

(24 citation statements)

References 38 publications

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“…In combination with the donor D4 , the A3 ‐based PSC device afforded a PCE of 1.74 %, which are slightly higher than the A2 ‐based one. Zhao and co‐workers synthesized the PDI‐based copolymers A4 , A6 , A12 , and A13 containing thiophene, selenophene, dithiophene (DiTh), and thienothiophene (TT), respectively . The stronger electron‐donating groups dithiophene or thienothiophene raised the HOMO energy levels and narrowed the optical band gaps.…”

Section: Pdi‐based Polymers As Nfas In All‐pscsmentioning

confidence: 99%

Perylene Diimide‐Based Conjugated Polymers for All‐Polymer Solar Cells

Shi

et al. 2020

Chemistry A European J

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In recent decades, non-fullerenea cceptors (NFAs) are undergoing rapid development and emerging asahot area in the field of organic solar cells. Amongt he high-performance non-fullerene acceptors, aromatic diimide-based electron acceptors remain to be highly promising systems. This review discusses the important progress of perylene dii-mide (PDI)-based polymers as non-fullerenea cceptors in allpolymer solar cells(all-PSCs)s ince 2014. The relationship between structure andp roperty,m atching aspects between donors and acceptors, and device fabrications are unveiled from as ynthetic chemist perspective.

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Section: Pdi‐based Polymers As Nfas In All‐pscsmentioning

confidence: 99%

Perylene Diimide‐Based Conjugated Polymers for All‐Polymer Solar Cells

Shi

et al. 2020

Chemistry A European J

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“…It was noted that the molecular weights were considerably higher than those of the previously reported PDIand NDP-derived polymers (mostly around 10−20 kDa). 28,29,34,36,46,47 We speculate that the "butterfly"-shaped conformation of PTP unit and the long α-branched side chains both brought about favorable effects on solubility and suppressed the aggregation of polymerizing intermediates (i.e., the oligomers), which facilitated the high polymer formation. The thermogravimetric analysis (TGA) results revealed that both PTP-Th and PTP-TT possessed excellent thermal stability, with a decomposition temperature (T d ) of 380 and 378 °C (with 5% weight loss), respectively (Figure S1).…”

Section: Resultsmentioning

confidence: 96%

Thiophene-Fused Perylenediimide-Based Polymer Acceptors for High-Performance All-Polymer Solar Cells

et al. 2021

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Over the past years, perylenediimide (PDI)-based polymers have emerged as one of the widely studied polymer acceptors applicable to all-polymer solar cells (PSCs) due to their outstanding photovoltaic properties. Covalently fused PDI units, such as naphthodiperylenetetraimide (NDP), are proven beneficial to increasing the regularity of polymer backbones and enhancing the molecular packing in blend films, thus optimizing the active-layer morphology and improving the device performance. However, most investigated PDI polymers commonly demonstrated low open-circuit voltage (V oc ) in solar cells due to their low-lying lowest unoccupied molecular orbital (LUMO), which greatly limited the power-conversion efficiencies (PCEs) of their devices. Herein, we design and synthesize two new polymer acceptors (PTP-TT and PTP-Th) using thiophene-fused dimeric PDI (i.e., PTP) as the key building block. Both polymers exhibit much elevated LUMO levels at ca. −3.8 eV and achieve higher V oc in devices compared with NDP-derived polymers. In particular, PTP-TT exhibits stronger light-absorption ability than PTP-Th and a presumably more planar backbone conformation, which are favorable for molecular packing and charge carrier transport in the active layer. Using PTB7-Th as the donor, PTP-TT-based devices achieve the best PCE of 7.04%, with a V oc of 0.86 V, a short-circuit current density of 14.96 mA/cm 2 , and a fill factor of 54%. The current results demonstrate that fusing PDIs with a proper electron-rich moiety can synergistically elevate the LUMO level and optimize the backbone regularity of polymer acceptors to obtain desirable efficiencies of PSCs.

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“…The corresponding photovoltaic parameters are summarized in Table 1 . Furthermore, the device performance of analogue polymers of PPDI‐2T and PDTCDI are also listed in Table for comparison. As presented in Table , PBDB‐T:PTDI‐T based device gave a PCE of 2.89% with a high V OC of 1.03 V, a short‐circuit current density (J SC ) of 5.97 mA cm −2 and a fill factor (FF) of 0.47.…”

Section: Resultsmentioning

confidence: 99%

Design and Synthesis of a Novel n‐Type Polymer Based on Asymmetric Rylene Diimide for the Application in All‐Polymer Solar Cells

Yang

Chen

Ran

et al. 2018

Macromol. Rapid Commun.

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A novel n-type polymer of PTDI-T based on asymmetric rylene diimide and thiophene is designed and synthesized. The highest power conversion efficiency of 4.70% is achieved for PTB7-Th:PTDI-T-based devices, which is obviously higher than those of the analogue polymers of PPDI-2T and PDTCDI. When using PBDB-T as a donor, an open-circuit voltage (V ) as high as 1.03 V is obtained. The results indicate asymmetric rylene diimide is a kind of promising building block to construct n-type photovoltaic polymers.

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All-polymer solar cells with perylenediimide polymer acceptors

Cited by 30 publications

References 38 publications

Perylene Diimide‐Based Conjugated Polymers for All‐Polymer Solar Cells

Perylene Diimide‐Based Conjugated Polymers for All‐Polymer Solar Cells

Thiophene-Fused Perylenediimide-Based Polymer Acceptors for High-Performance All-Polymer Solar Cells

Design and Synthesis of a Novel n‐Type Polymer Based on Asymmetric Rylene Diimide for the Application in All‐Polymer Solar Cells

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