A facile, covalent modification of single-wall carbon nanotubes by thiophene for use in organic photovoltaic cells

Stylianakis, Minas M.; Mikroyannidis, John A.; Kymakis, Emmanuel

doi:10.1016/j.solmat.2009.09.013

Cited by 71 publications

(54 citation statements)

References 36 publications

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“…Many of the research reports in the literature suggested that the functionalized nanotubes increased the solubility in organic solvents and allowed a more homogeneous polymer composite in thin film device fabrication. 13,26,29,30 It was also reported that nanotubes enhances charge/hole transport in photovoltaic devices, but this needs to be further verified prior to assuming a significant enhancement in the carrier transport. The photogenerated excitons in the active composite layer can be dissociated at the P3HT/PCBM, P3HT/CNT and PCBM/CNT interfaces, but the challenge is now to move these charges in a quick and efficient manner to the electrodes of the devices.…”

Section: Characterization Methodsmentioning

confidence: 99%

“…This solution was filtered through a PTFE membrane (0.2µm) and dried in a vacuum oven. In the second step, carboxylic acid groups were activated through refluxing with thionyl chloride with a catalytic quantity of N,N-dimethylformamide for 24 h. 21,25,26 The excess of thionyl chloride was removed by vapour distillation under reduced pressure. The product was washed with dichloromethane and dried in a vacuum oven.…”

Section: Functionalization Of Nanotubesmentioning

confidence: 99%

“…The product was washed with dichloromethane and dried in a vacuum oven. In the final step, COCl-MWCNT were reacted with 2-thiopheneethylamine in order to obtain thiophene functionalized CNT (T-MWCNT) 26 and with ethylene diamine to obtain amine functionalized CNT (A-MWCNT). …”

Section: Functionalization Of Nanotubesmentioning

confidence: 99%

See 2 more Smart Citations

The incorporation of mono- and bi-functionalized multiwall carbon nanotubes in organic photovoltaic cells

Sadhu¹,

Nismy²,

Adikaari³

et al. 2011

Nanotechnology

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Section: Characterization Methodsmentioning

confidence: 99%

Section: Functionalization Of Nanotubesmentioning

confidence: 99%

See 1 more Smart Citation

The incorporation of mono- and bi-functionalized multiwall carbon nanotubes in organic photovoltaic cells

Sadhu¹,

Nismy²,

Adikaari³

et al. 2011

Nanotechnology

View full text Add to dashboard Cite

show abstract

“…Functionalization of CNTs by other means has also been attempted by binding pendant thiophene rings or ester groups on the surface of SWCNT. In both cases, the enhancement of the photovoltaic response was believed to be due to the more efficient dispersion of the modified SWCNTs resulting in a more homogenous photoactive layer [121,122].…”

Section: Hybrid Solar Cells Based On Carbon Nanotubesmentioning

confidence: 99%

Recent Developments in Quantum Dots/CNT Co-Sensitized Organic Solar Cells

Soltani¹,

Katbab²,

Ameri³

2017

J Material Sci Eng

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Polymer solar cells (PSCs) are emerging alternative candidates to the standard silicone technology for green and renewable energy generation owing to their flexibility and solution processability. Bulk heterojunction (BHJ) organic solar cells (OSCs) based on conjugated semiconducting polymers as donor (D) and fullerene derivatives as acceptor (A) offer large D/A interfacial area, which overcomes the short exciton diffusion length. Although, recent advances in narrow band gap semiconducting polymers have led to the improvement in power conversion efficiency of organic photovoltaics (OPVs) beyond 10%, inefficient charge separation and low carrier mobility as well as negligible photon harvesting in near-infrared (NIR) and/or infrared (IR) region of the solar spectrum have still remained as bottle neck for ultimate performance of OPVs. Most PSCs only absorb the UV-visible part of the solar spectrum, leading to the low light harvesting efficiency. Hence, solution processed photoactive materials comprising nanostructured semiconducting inorganic quantum dots (QDs) as sensitizer have attracted great attention to improve energy conversion efficiency of the OPVs. This is attributed to the outstanding optoelectronic properties of QDs such as band gap tunability, potential NIR photons harvesting and multi exciton generation (MEG). However, the main shortcoming of inorganic QDs based OSCs is randomly hopping charge transport among discrete QD particles, which can be tackled through hybridization with one dimensional (1D) electrically conductive nanostructured materials such as carbon nanotube (CNT). By this way, CNT particles would behave as support for anchoring the light harvesting semiconductor QDs, leading to the enhancement of the exciton dissociation and charge transport towards the corresponding electrodes. Recently, manufacturing PSCs co-sensitized by QD loaded CNT has been shown as a promising direction to maximize performance of the device. This article reviews the recent developments in enhancement of OPVs" performance by utilization of high efficient light harvesting QDs and/or their hybrid with 1D CNTs.

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“…have experienced immense interest as possible candidates for clean energy generation offer the benefit of low-cost, light-weight, large-area, high mechanical flexibility, and low temperature/ high throughput manufacturing processes [1][2][3] offering important advantages over silicon technology. A key task toward the implementation of this technology is the adaptability and/ or the development of the materials used for their fabrication to further optimize their overall performance [4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Solution-Processed Graphene-Based Transparent Conductive Electrodes as Ideal ITO Alternatives for Organic Solar Cells

Stylianakis¹,

Konios²,

Petridis³

et al. 2017

Graphene Materials - Advanced Applications

Self Cite

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The isolation of free-standing graphene in 2004 was the spark for a new scientific revolution in the field of optoelectronics. Due to its extraordinary optoelectronic and mechanical properties, graphene is the next wonder material that could act as an ideal low-cost alternative material for the effective replacement of the expensive conventional materials used in organic optoelectronic applications. Indeed, the enhanced electrical conductivity of graphene combined with its high transparency in visible and near-infrared spectra, enabled graphene to be an ideal low-cost indium tin oxide (ITO) alternative in organic solar cells (OSCs). The prospects and future research trend in graphenebased TCE are also discussed. On the other hand, solution-processed graphene combines the unique optoelectrical properties of graphene with large area deposition and flexible substrates making it compatible with printing and coating technologies, such as roll-to-roll, inkjet, gravure, and flexographic printing manufacturing methods. This

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A facile, covalent modification of single-wall carbon nanotubes by thiophene for use in organic photovoltaic cells

Cited by 71 publications

References 36 publications

The incorporation of mono- and bi-functionalized multiwall carbon nanotubes in organic photovoltaic cells

The incorporation of mono- and bi-functionalized multiwall carbon nanotubes in organic photovoltaic cells

Recent Developments in Quantum Dots/CNT Co-Sensitized Organic Solar Cells

Solution-Processed Graphene-Based Transparent Conductive Electrodes as Ideal ITO Alternatives for Organic Solar Cells

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