Graphene oxide and water-soluble polymer composite materials as efficient hole transporting layer for high performance organic solar cells

An efficient hole-transporting layer (HTL) based on functionalized two-dimensional (2D) MoS2-poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composites has been developed for use in organic solar cells (OSCs). Few-layer, oleylamine-functionalized MoS2 (FMoS2) nanosheets were prepared via a simple and cost-effective solution-phase exfoliation method; then, they were blended into PEDOT:PSS, a conducting conjugated polymer, and the resulting hybrid film (PEDOT:PSS/FMoS2) was tested as an HTL for poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) OSCs. The devices using this hybrid film HTL showed power conversion efficiencies up to 3.74%, which is 15.08% higher than that of the reference ones having PEDOT:PSS as HTL. Atomic force microscopy and contact angle measurements confirmed the compatibility of the PEDOT:PSS/FMoS2 surface for active layer deposition on it. The electrical impedance spectroscopy analysis revealed that their use minimized the charge-transfer resistance of the OSCs, consequently improving their performance compared with the reference cells. Thus, the proposed fabrication of such HTLs incorporating 2D nanomaterials could be further expanded as a universal protocol for various high-performance optoelectronic devices.

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Selbstverdichtende zusammengesetzte Hochleistungswerkstoffe auf der Basis von Zement und Polymeren / Self-compacting High Performance Cement/Polymer Composite Materials

Restoration of Buildings and Monuments ◽

10.1515/rbm-2010-6386 ◽

2010 ◽

Vol 16 (4-5) ◽

pp. 283-290

Author(s):

F. Sandrolini ◽

S. Manzi

Keyword(s):

Composite Materials ◽

Polymer Composite ◽

High Performance ◽

Polymer Composite Materials

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Improved efficiency in organic solar cells via conjugated polyelectrolyte additive in the hole transporting layer

Journal of Materials Chemistry C ◽

10.1039/c6tc03771b ◽

2016 ◽

Vol 4 (45) ◽

pp. 10722-10730 ◽

Cited By ~ 5

Author(s):

Chan Kyu Kwak ◽

Gabriel E. Pérez ◽

Benjamin G. Freestone ◽

Sulaiman A. Al-Isaee ◽

Ahmed Iraqi ◽

...

Keyword(s):

Solar Cells ◽

Charge Transfer ◽

Power Conversion Efficiency ◽

Organic Solar Cells ◽

Power Conversion ◽

Cross Coupling ◽

Water Soluble ◽

Conjugated Polyelectrolyte ◽

Hole Charge ◽

Hole Transporting

The water soluble conjugated polyelectrolyte was synthesised by Suzuki cross coupling and increased the power conversion efficiency by improving hole charge transfer from active layer into the hole transporting layer.

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2D/2D vanadyl phosphate (VP) on reduced graphene oxide as a hole transporting layer for efficient organic solar cells

Organic Electronics ◽

10.1016/j.orgel.2018.03.021 ◽

2018 ◽

Vol 59 ◽

pp. 92-98 ◽

Cited By ~ 5

Author(s):

Ye-Jin Jeon ◽

Jin-Mun Yun ◽

Minji Kang ◽

Sehyun Lee ◽

Yen-Sook Jung ◽

...

Keyword(s):

Graphene Oxide ◽

Solar Cells ◽

Reduced Graphene Oxide ◽

Organic Solar Cells ◽

Vanadyl Phosphate ◽

Reduced Graphene ◽

Hole Transporting

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High performance A–D–A oligothiophene-based organic solar cells employing two-step annealing and solution-processable copper thiocyanate (CuSCN) as an interfacial hole transporting layer

Journal of Materials Chemistry A ◽

10.1039/c6ta07640h ◽

2016 ◽

Vol 4 (44) ◽

pp. 17344-17353 ◽

Cited By ~ 17

Author(s):

Amaresh Mishra ◽

Tushar Rana ◽

Annika Looser ◽

Matthias Stolte ◽

Frank Würthner ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

High Performance ◽

Solution Processed ◽

Hole Transporting ◽

Solution Processable

A–D–A-type small molecular donors with different terminal acceptor groups were developed achieving high PCEs of up to 8.22% in solution-processed organic solar cells.

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