High performance PDI based ternary organic solar cells fabricated with non-halogenated solvent

Xia, Peng; Wu, Mingliang; Zhang, Sixuan; Hu, Juan; Chen, Li; Bu, Tongle; Yi, Jianpeng; Wu, Di; Xia, Jianlong

doi:10.1016/j.orgel.2019.03.052

Cited by 30 publications

(20 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Alternatively, helical π‐extended PDI oligomers in which the PDI moieties were fused together by ethylene bridges were reported by Wang and Nuckolls groups independently [38–43] . Moreover, significant achievements have been done in building new NFAs using the helical PDI oligomers, especially the dimer (PDI2) as building blocks [44–64] …”

Section: Introductionmentioning

confidence: 99%

The Synthesis of Asymmetric Perylene Diimide Acceptors and Their Optoelectronic Properties Studies

et al. 2022

Self Cite

View full text Add to dashboard Cite

Inspired by the advantages of heteroatoms introducing and molecular structure symmetry-breaking in construction of nonfullerene acceptors (NFAs), in this contribution, we designed and synthesized three asymmetric perylene diimide (PDI) based acceptors by annulating a selenophene and/or fusing a thiophene ring at the bay position. Using commercially purchased PBDBÀ T as electron donor, a best power conversion efficiency (PCE) of 5.32 % was achieved for selenophene-annulated PDI (PDI2À Se), while higher PCE of 6.10 % was obtained for the thiophene fused one (PDI2À FT). Interestingly, PDI2SeÀ FT, in which the S and Se atoms introduced simultaneously, showed the best photovoltaic performance among the three asymmetric NFAs with an optimal PCE of 6.96 %. This result demonstrates that incorporation of diverse heteroatoms at the bay positions to construct asymmetric configuration is a robust design strategy for high performance PDI-based NFAs.

show abstract

Section: Introductionmentioning

confidence: 99%

The Synthesis of Asymmetric Perylene Diimide Acceptors and Their Optoelectronic Properties Studies

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…[21,22] For high-performance non-fullerene acceptors, assembling PDIs into dimeric, trimeric, or tetrameric structures using conjugated cores has been a effective strategy (Figure 1C). [23][24][25][26][27] For single-component photoactive materials assembling PDIs parallel to an electron-rich conjugated polymer backbone via aliphatic chains has proved a new and innovative strategy to achieve record-performance single-component organic PV devices (Figure 1D). [28,29] Despite the prevalence of both conjugated and aliphatic linkers, a hybrid structure where PDIs are both linked together via conjugated and via aliphatic linkers is unexplored.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Tetrameric Perylene Diimide Assemblies

2021

View full text Add to dashboard Cite

Organic photovoltaics have found utility as indoor light recycling devices providing an opportunity for the sustainable powering of IoT sensors and related smart electronics. In the report, two organic π-conjugated molecules consisting of four perylene diimide (PDI) chromophores each are presented and used as non-fullerene acceptors in indoor photovoltaic devices. The new materials consist of a dimeric Nannulated PDI core with single PDIs grafted onto the pyrrolic N-atom positions of the core. Compounds PDI 4 e and PDI 4 i are PDI tetramers and differ with PDI 4 e having the terminal N-annulated PDI with pyrrolic N-atom distal to the core and PDI 4 i having the terminal N-annulated PDI with pyrrolic N-atom proximal to the core. The structural and optoelectronic properties were investigated using NMR spectroscopy, optical absorption and emission spectroscopy, and cyclic voltammetry. The compounds exhibit typical optical signatures for PDIs but notable is that the addition of grafted PDI molecules prevents significant aggregation of the dimeric PDI core, as compared to a reference dimer. Use as non-fullerene acceptors in ternary bulk-heterojunction blends with the polymer FBT and fullerene PC 61 BM lead to increased open-circuit voltages and power conversion efficiencies upwards of 13.7 % at 2000 lux light intensity.

show abstract

“…[7][8][9][10][11][12][13][14][15][16] Among the diverse NFAs, perylene diimide (PDI) is one of the most studied building blocks because of its low cost, excellent electron mobility and suitable absorption. [17][18][19][20][21][22][23][24][25][26][27] However, the nude PDI-based NFAs tend to form a strong selfaggregation and exaggerated domain size owing to large conjugated planar structure, which hinders efficient exciton dissociation and charge transfer, and further results in unfavorable device performance. [28][29][30][31][32] To address this issue, a steric hindering strategy was employed in constructing PDIs with twisted structures.…”

Section: Introductionmentioning

confidence: 99%

Perylene Diimide Hexamer Based on Combination of Direct and Indirect Linkage Manners for Non‐fullerene Organic Solar Cells

Zhang

et al. 2021

Chemistry An Asian Journal

Self Cite

View full text Add to dashboard Cite

Perylene diimide (PDI) is one of the most intensively studied building blocks for the construction of non-fullerene acceptors (NFAs). In this contribution, based on combination of the direct and indirect linkage manners of PDI units at the bay position, a propeller-shaped PDI hexamer T-DPDI was designed and synthesized. The singly bonded PDI dimer DPDI and the benzene ring cored PDI trimer TPDI were synthesized for comparison. The photovoltaic performances of these three PDI derivatives were investigated using the commercially available PTB7-Th as electron donor. A best power conversion efficiency (PCE) of 6.58% was obtained for T-DPDI based organic solar cells (OSCs), which is higher than those of DPDI and TPDI based ones. The superior photovoltaic performance of T-DPDI can be ascribed to its stronger absorption and more favorable morphology. This study presents an interesting example of improving the photovoltaic performances of PDI based NFAs by hybridizing the direct and indirect linkage manners.

show abstract

High performance PDI based ternary organic solar cells fabricated with non-halogenated solvent

Cited by 30 publications

References 73 publications

The Synthesis of Asymmetric Perylene Diimide Acceptors and Their Optoelectronic Properties Studies

The Synthesis of Asymmetric Perylene Diimide Acceptors and Their Optoelectronic Properties Studies

Hybrid Tetrameric Perylene Diimide Assemblies

Perylene Diimide Hexamer Based on Combination of Direct and Indirect Linkage Manners for Non‐fullerene Organic Solar Cells

Contact Info

Product

Resources

About