Enhancement of Donor–Acceptor Polymer Bulk Heterojunction Solar Cell Power Conversion Efficiencies by Addition of Au Nanoparticles

Wang, Dong Hwan; Kim, Do Youb; Choi, Kyeong Woo; Seo, Jung Hwa; Im, Sang Hyuk; Park, Jae Hyung; Park, O Ok; Heeger, Alan J.

doi:10.1002/ange.201101021

Cited by 110 publications

(69 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…14,15 Active layer doping has been proven an effective way to improve light harvesting and charge carrier transport of polymer solar cells. 16,17 The presence of dopant in active layer provides an interface for charge transport. The additive can remove ubiquitous electron traps such as oxygen and enables the formation of percolation pathways for charge transport.…”

mentioning

confidence: 99%

The operation mechanism of poly(9,9-dioctylfluorenyl-2,7-diyl) dots in high efficiency polymer solar cells

Liu

Zhang

et al. 2015

Applied Physics Letters

View full text Add to dashboard Cite

The highly efficient polymer solar cells were realized by doping poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) dots into active layer. The dependence of doping amount on devices performance was investigated and a high efficiency of 7.15% was obtained at an optimal concentration, accounting for a 22.4% enhancement. The incorporation of PFO dots (Pdots) is conducted to the improvement of Jsc and fill factor mainly due to the enhancement of light absorption and charge transport property. Pdots blended in active layer provides an interface for charge transfer and enables the formation of percolation pathways for electron transport. The introduction of Pdots was proven an effective way to improve optical and electrical properties of solar cells.

show abstract

mentioning

confidence: 99%

The operation mechanism of poly(9,9-dioctylfluorenyl-2,7-diyl) dots in high efficiency polymer solar cells

Liu

Zhang

et al. 2015

Applied Physics Letters

View full text Add to dashboard Cite

show abstract

“…5C. Recently, moderate increases in PCE through the addition of metal nanoparticles have been reported [36,79,80].…”

Section: Sensitizer and Metal Nanoparticlesmentioning

confidence: 97%

“…In addition, relatively large metallic nanoparticles can reflect and scatter light and thereby increase the optical path length within the active layer [36,79]. As a result, adding nanoparticles to BHJ offers the possibility of enhanced absorption.…”

Section: Sensitizer and Metal Nanoparticlesmentioning

confidence: 98%

The influence of additive property on performance of organic bulk heterojunction solar cells

Liu

Han

2012

Polym. Bull.

View full text Add to dashboard Cite

The performance of bulk heterojunction organic solar cells based upon blends of donor and acceptor materials has been shown to be highly dependent on the microstructure and photoelectric properties of active layer. Recently, various methods, such as post-annealing, microwave annealing and control in the filmforming rate, and so on, have been used to modify the morphology to achieve high device performance. Among these methods, adding additives is a simple and promising approach, which can not only control the morphology but also improve the photon absorption or energy-level distribution of the active layer. In this review, we will introduce the additives that used widely in recent from following aspects: species, mechanism, and performance. First, the additive species and its selection principle according to special donor and acceptor system will be concluded. Then, the mechanisms of improved morphology and photoelectric properties by adding different kinds of additives will be illustrated in brief. At last, we will discuss the influences of additives on device performance.

show abstract

“…One possible explanation for the reduced series resistance in the Au-embedded BHJ PSCs is the enhanced hole mobility in the BHJ layer. [13] To investigate variations in the hole mobility of the BHJ layers as a function of Au NP dispersity, the hole mobility of each BHJ layer was obtained from an organic thin-film transistor (OTFT); the results are shown in Figure S5 and Table S3 in the Supporting Information. The hole mobility of each BHJ layer was calculated using Equation (2):…”

Section: Shunt Resistance and Series Resistancementioning

confidence: 99%

“…[5,6] Many researchers have utilized metallic NPs in PSCs by either incorporating them into the PSC interlayers [e.g., the hole extraction layer (HEL) or electron extraction layer (EEL) [7][8][9][10][11][12] ] or blending them into the BHJ active layer. [13] In the case of blending metallic NPs into the BHJ active layer, the NPs may be capped with organic ligands to improve their dispersity in a solution of BHJ active materials. However, the capping ligands on the metallic NPs may influence the morphological evolution of the BHJ active layer during the spin-coating process, which in turn has an effect on PSC performance.…”

Section: Introductionmentioning

confidence: 99%

Tailoring Dispersion and Aggregation of Au Nanoparticles in the BHJ Layer of Polymer Solar Cells: Plasmon Effects versus Electrical Effects

et al. 2014

Self Cite

View full text Add to dashboard Cite

Plasmonic effects that arise from embedding metallic nanoparticles (NPs) in polymer solar cells (PSCs) have been extensively studied. Many researchers have utilized metallic NPs in PSCs by either incorporating them into the PSC interlayers (e.g., the hole extraction and electron extraction layers) or blending them into the bulk heterojunction (BHJ) active layer. In such studies, the dispersity of the metallic NPs in each layer may vary due to both the different nature of the ligands and the amount of ligands on the metallic NPs. This in turn can produce different PSC performance parameters. Here, we systematically control the amount of attached organic ligands on Au NPs to control their dispersion behavior in the BHJ active layer of PSCs. By controlling the number of capping organic ligands on the Au NPs, the dispersity of the NPs in the BHJ layer is also controlled and the positive effects (particularly the plasmonic and electrical effects) of the Au NPs in the PSCs are investigated. From the obtained results, we find that the electrical contribution of the Au NPs is a more dominant factor for enhancing cell efficiency when compared to the plasmonic effect.

show abstract

Enhancement of Donor–Acceptor Polymer Bulk Heterojunction Solar Cell Power Conversion Efficiencies by Addition of Au Nanoparticles

Cited by 110 publications

References 36 publications

The operation mechanism of poly(9,9-dioctylfluorenyl-2,7-diyl) dots in high efficiency polymer solar cells

The operation mechanism of poly(9,9-dioctylfluorenyl-2,7-diyl) dots in high efficiency polymer solar cells

The influence of additive property on performance of organic bulk heterojunction solar cells

Tailoring Dispersion and Aggregation of Au Nanoparticles in the BHJ Layer of Polymer Solar Cells: Plasmon Effects versus Electrical Effects

Contact Info

Product

Resources

About