Improving the current density Jsc of organic solar cells P3HT:PCBM by structuring the photoactive layer with functionalized SWCNTs

Derbal-Habak, Hassina; Bergeret, Céline; Cousseau, Jack; Nunzi, Jean‐Michel

doi:10.1016/j.solmat.2010.12.047

Cited by 69 publications

(45 citation statements)

References 21 publications

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“…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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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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“…Multi walled carbon nanotubes (MWNTs) 12,13 and single-walled carbon nanotubes (SWNTs) [14][15][16][17][18][19][20] have been investigated as active layer additives in monolayer devices as acceptors [14][15][16] and in charge extraction limited bulk heterojunction devices. 12,13,[17][18][19][20] Some of these studies have used the pristine nanotubes, [17][18][19] whereas others have functionalized the nanotubes with various functional groups. 13,20,21 Most of the previous investigations have focused on randomly dispersing the CNTs within the active layer, whilst some studies have attempted building the bulk heterojunction using nanotube network as a skeleton, 22 and achieving an orderly array of nanotubes that had connectivity to one of the end electrodes.…”

mentioning

confidence: 99%

“…12,13,[17][18][19][20] Some of these studies have used the pristine nanotubes, [17][18][19] whereas others have functionalized the nanotubes with various functional groups. 13,20,21 Most of the previous investigations have focused on randomly dispersing the CNTs within the active layer, whilst some studies have attempted building the bulk heterojunction using nanotube network as a skeleton, 22 and achieving an orderly array of nanotubes that had connectivity to one of the end electrodes. 23 These studies have demonstrated success in varying degrees, but, in general, the efficiency enhancements achieved by using CNTs with 13,20 or without 18,19,22 functionalization were limited.…”

mentioning

confidence: 99%

“…13,20,21 Most of the previous investigations have focused on randomly dispersing the CNTs within the active layer, whilst some studies have attempted building the bulk heterojunction using nanotube network as a skeleton, 22 and achieving an orderly array of nanotubes that had connectivity to one of the end electrodes. 23 These studies have demonstrated success in varying degrees, but, in general, the efficiency enhancements achieved by using CNTs with 13,20 or without 18,19,22 functionalization were limited. However, remarkable progress has been made by doping the nanotubes to be either n-type or p-type designating them to behave as either electron extractors or hole extractors.…”

mentioning

confidence: 99%

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Incorporating semiconducting single-walled carbon nanotubes as efficient charge extractors in organic solar cells

Abeygunasekara

Hiralal

Samaranayake

et al. 2015

Applied Physics Letters

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We report on the improvement of power conversion efficiency (PCE) of PTB7/PC70BM solar cells by the addition of small quantities (0.02%–0.04%) of pristine single-walled carbon nanotubes (SWNTs) in the active-layer. SWNTs and purified semiconducting SWNTs (S-SWNTs) were added in quantities, which is 2 orders of magnitude lower than previously reported value and resulted in a reduction in the series resistance of the solar cell with minor changes on the shunt resistance. On addition of purified S-SWNT, the PCE of air measured devices enhanced by 29% from 4.9% to 6.3%, with short-circuit current density (Jsc) improving from 12.1 mA/cm2 to 14.4 mA/cm2 and a fill factor improvement from 54% to 61%. In addition, the role of processing additive N-Methyl-2-pyrrolidone, which acts as a SWNT dispersant, is also investigated. A single diode model of a solar cell is used to extract the cell parameters and understand the effect of SWNTs. Based on experimental data and it's fitting to the single diode model, we propose that S-SWNT improve the transport and extraction of photogenerated charges within the solar cell device.

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“…Because the size of OA capped CdSe NPs is just 3.3 nm, it helped in the fast electron transfer resulting in highest current density measured. 16,17 The improved performance of P3HT: PCBM: CdSe (pyridine) device can be attributed to the use of CdSe NPs with pyridine capping. Pyridine capped CdSe NPs helped in formation of better percolation pathway for the 18 Pyridinetreated CdSe NPs tend to form aggregates within the blends.…”

mentioning

confidence: 99%

Effects of Ligand-exchanged Cadmium Selenide Nanoparticles on the Performance of P3HT:PCBM:CdSe Ternary System Solar Cells

Park¹,

Fu²,

Choi³

et al. 2013

Bulletin of the Korean Chemical Society

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An improved hybrid solar cell was obtained by focusing on the effects of ligand for CdSe nanoparticles, in the active layers. The performance was compared by mixing nanoparticles capped with pyridine or oleic acid for the acceptor material into poly(3-hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester based active layer. The solar cells with pyridine capped CdSe nanoparticles showed a power conversion efficiency of 2.96% while oleic acid capped CdSe nanoparticles showed 2.85%, under AM 1.5G illumination. Formation of percolation pathways for carrier transport and a reduction in the hopping event resulted in better performance of pyridine capped nanoparticles.

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Improving the current density Jsc of organic solar cells P3HT:PCBM by structuring the photoactive layer with functionalized SWCNTs

Cited by 69 publications

References 21 publications

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

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

Incorporating semiconducting single-walled carbon nanotubes as efficient charge extractors in organic solar cells

Effects of Ligand-exchanged Cadmium Selenide Nanoparticles on the Performance of P3HT:PCBM:CdSe Ternary System Solar Cells

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