Photoluminescence Quenching Study of Composites Comprising Novel Fullerene-Based Acceptors and MDMO-PPV

Nikitenko, Sergey L.; Mayorova, Julia Yu.; Troshin, Pavel A.; Lyubovskaya, Rimma N.; Kaplunov, M. G.

doi:10.1080/15421400701230063

Cited by 9 publications

(7 citation statements)

References 10 publications

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“…PL quenching is thus attributed to electron transfer from the photoexcited donor to the acceptor, as observed by Nikitenko et al in a study of the photoluminescence quenching of MDMO-PPV by fullerene derivatives. 47 Thus, a high PL quenching of donor-acceptor blends is therefore expected for high performance devices. The photoluminescence quenching of DPP-rhodanine derivatives 5-6 was studied with a blend of P3HT with DPP-glass 5 as representative compound.…”

Section: Xrd For Blends Of P3ht and Dpp-rhodanine Derivativesmentioning

confidence: 99%

Solid-state showdown: Comparing the photovoltaic performance of amorphous and crystalline small-molecule diketopyrrolopyrrole acceptors

Adhikari

Nunzi

Lebel

2017

Organic Electronics

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A novel glass-forming diketopyrrolpyrrole (DPP) derivative (DPP-glass) and a crystalline isoelectronic analogue were synthesized and their photophysical, electrochemical and photovoltaic properties were investigated. The compounds were processed into thin films that were further studied by Atomic force microscopy (AFM) and X-ray diffraction (XRD). Solution-processed inverted and regular bulk heterojunction photovoltaic cells were fabricated in different blend ratios with P3HT as donor. Both DPP derivatives show appreciable photovoltaic performance with power conversion efficiencies (PCE) ranging from 0.34-2.54%. The regular device with amorphous DPP-glass showed the highest efficiency (2.54 %) in the blend ratio 1:2 whereas the device with crystalline DPP derivative shows an efficiency 1.59% under simulated 1.5 solar irradiation of 100 mWcm -2 . The better performance of DPP-glass in comparison to its crystalline analogue is attributed to a more uniform film morphology and fewer defects, leading to improved electron mobility.

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Section: Xrd For Blends Of P3ht and Dpp-rhodanine Derivativesmentioning

confidence: 99%

Solid-state showdown: Comparing the photovoltaic performance of amorphous and crystalline small-molecule diketopyrrolopyrrole acceptors

Adhikari

Nunzi

Lebel

2017

Organic Electronics

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“…At a F6T2:PCBM weight ratio of 1:0.5, the PL emission from F6T2 dramatically decreases by over 99% of its emission quenched by the addition of PCBM. As the F6T2:PCBM weight ratio changes to 1:2, the PL emission from F6T2 is further reduced to 0.15% of the original level, indicating the effective PL quenching of F6T2 by PCBM, as similar behavior observed in P3HT:PCBM [181] and MDMO-PPV:PCBM [182][183] systems. Because the overlap between the PL spectrum of F6T2 and the absorption spectrum of PCBM is rather small, the resonance energy transfer between them can be neglected.…”

Section: Energy Level and Optical Propertiessupporting

confidence: 54%

Tandem organic solar cells with an inverted structure

Zhao¹

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In this dissertation, systematic study on organic solar cells (OSCs) with inverted and tandem structures and a new polymer based solar cell is presented. An inverted device has been demonstrated using low work function (LWF) metal Ca modified ITO as cathode and MoO 3 modified Ag as anode. In tandem devices, an efficient Al/MoO 3 intermediate layer achieving optical and electrical sub-cell connection, has been developed and employed in various types of tandem devices, including polymer/small molecule and polymer/polymer double-and triple-tandem devices with improved or comparable efficiencies. Subsequently, inverted tandem OSCs with MoO 3 /Ag/Al/Ca intermediate layer have been realized for the first time, exhibiting good performance.

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“…The quenching of polymer luminescence by PDI glasses 3a and 3b is attributed to electron transfer from the photo-excited donor polymer to the acceptor PDI molecules, as observed by Nikitenko et al in the study of photoluminescence quenching of MDMO-PPV by fullerene derivatives. 48 The strong PL quenching by the PDI glasses suggests that in both cases, the two components exist as intimate blends constituted of small domains, rather than fully segregated biphasic structures.…”

Section: Deposition and Characterization Of Thin Films Of P3ht Blendsmentioning

confidence: 98%

Synthesis, characterization and photovoltaic performance of novel glass-forming perylenediimide derivatives

Adhikari

Rahami

Nunzi

et al. 2016

Organic Electronics

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Novel glass-forming perylene-3,4,9,10-tetracarboxylic diimide (PDI) derivatives were synthesized from 1,7-dibromoperylene-3,4,9,10tetracarboxylic diimides by nucleophilic substitution with a glass-forming mexylaminotriazine unit, characterized, and their performance as electron acceptors in bulk heterojunction photovoltaic cells with P3HT as donor were studied. Imide groups (octyl and 2,6diisopropylphenyl) and bay substituents (bromo or pyrrolidinyl) were used to study the impact of sterics and electronics on device performance. The HOMO and LUMO levels of the materials were determined using cyclic voltammetry. The morphology and packing behaviour of molecules in films of blends with P3HT were studied using Atomic Force Microscopy and X-ray diffraction, and in all four cases, the PDI derivatives remain in the amorphous phase, while the P3HT portion of the blends crystallizes. The devices gave photovoltaic performances ranging from 0.2 to 0.6 %, and while the bay substituents showed negligible impact on device performance, switching from bulky 2,6-diisopropylphenyl imide groups to linear octyl chains improved the efficiency of the devices by 36 %, current density by 66 % and fill factor by 16 %. The performances observed for devices incorporating these PDI glasses are comparable to that of devices with crystalline PDI acceptors.

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Photoluminescence Quenching Study of Composites Comprising Novel Fullerene-Based Acceptors and MDMO-PPV

Cited by 9 publications

References 10 publications

Solid-state showdown: Comparing the photovoltaic performance of amorphous and crystalline small-molecule diketopyrrolopyrrole acceptors

Solid-state showdown: Comparing the photovoltaic performance of amorphous and crystalline small-molecule diketopyrrolopyrrole acceptors

Tandem organic solar cells with an inverted structure

Synthesis, characterization and photovoltaic performance of novel glass-forming perylenediimide derivatives

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