Improving the efficiency of an organic solar cell by a polymer additive to optimize the charge carriers mobility

Chen, Ming-Chung; Liaw, Der‐Jang; Chen, Wen‐Hsiang; Huang, Yu‐Hsuan; Sharma, Jadab; Tai, Yian

doi:10.1063/1.3664127

Cited by 26 publications

(24 citation statements)

References 22 publications

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“…As an example, alkanethiol‐based compounds have been studied in this way 10–12. Polymer additives were also successfully added to the P3HT:PCBM blend to optimize the charge transport 13…”

Section: Methodsmentioning

confidence: 99%

Block Copolymer as a Nanostructuring Agent for High‐Efficiency and Annealing‐Free Bulk Heterojunction Organic Solar Cells

Renaud¹,

Mougnier²,

Pavlopoulou³

et al. 2012

Advanced Materials

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Section: Methodsmentioning

confidence: 99%

Block Copolymer as a Nanostructuring Agent for High‐Efficiency and Annealing‐Free Bulk Heterojunction Organic Solar Cells

Renaud¹,

Mougnier²,

Pavlopoulou³

et al. 2012

Advanced Materials

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“…In OSCs, the charge carrier mobility is an important factor to optimize: both high mobility and a balance between electron and hole mobilities were shown to be beneficial. 36,[38][39][40][41] For some polymers, an increase in crystallinity is also generally accompanied by a modification in their UV-visible absorption spectra. For example, P3HT exhibits a red shift and the appearance of additional vibronic bands when the degree of crystallinity increases in the BHJ.…”

Section: Effects Of the Morphology On Efficiencymentioning

confidence: 99%

Formulation strategies for optimizing the morphology of polymeric bulk heterojunction organic solar cells: a brief review

et al. 2014

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Polymeric bulk heterojunction (BHJ) organic solar cells represent one of the most promising technologies for renewable energy with a low fabrication cost. Control over BHJ morphology is one of the key factors in obtaining high-efficiency devices. This review focuses on formulation strategies for optimizing the BHJ morphology. We address how solvent choice and the introduction of processing additives affect the morphology. We also review a number of recent studies concerning prediction methods that utilize the Hansen solubility parameters to develop efficient solvent systems.

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“…The search for new compatibilizers brought the exploration of materials with a high degree of novelty that do not necessarily resemble the D/A components employed for the realization of OPVs. This is the case for PFLAM, an electron-donor polymer based on the repetition of fluorene and triphenylamine units [152]. This material, characterized by elevated hole mobility (10 −3 × cm 2 V -1 s -1 ), is tested as CB for a common P3HT:PCBM blend; the addition of PFLAM results in higher hole mobility, with an elevated efficiency gain for such a device, quantified in a remarkable 34%.…”

Section: Polymeric Cbs Without Thiophene And/or Fullerene-fragmentsmentioning

confidence: 99%

Tackling Performance Challenges in Organic Photovoltaics: An Overview about Compatibilizers

et al. 2020

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Organic Photovoltaics (OPVs) based on Bulk Heterojunction (BHJ) blends are a mature technology. Having started their intensive development two decades ago, their low cost, processability and flexibility rapidly funneled the interest of the scientific community, searching for new solutions to expand solar photovoltaics market and promote sustainable development. However, their robust implementation is hampered by some issues, concerning the choice of the donor/acceptor materials, the device thermal/photo-stability, and, last but not least, their morphology. Indeed, the morphological profile of BHJs has a strong impact over charge generation, collection, and recombination processes; control over nano/microstructural morphology would be desirable, aiming at finely tuning the device performance and overcoming those previously mentioned critical issues. The employ of compatibilizers has emerged as a promising, economically sustainable, and widely applicable approach for the donor/acceptor interface (D/A-I) optimization. Thus, improvements in the global performance of the devices can be achieved without making use of more complex architectures. Even though several materials have been deeply documented and reported as effective compatibilizing agents, scientific reports are quite fragmentary. Here we would like to offer a panoramic overview of the literature on compatibilizers, focusing on the progression documented in the last decade.

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Improving the efficiency of an organic solar cell by a polymer additive to optimize the charge carriers mobility

Cited by 26 publications

References 22 publications

Block Copolymer as a Nanostructuring Agent for High‐Efficiency and Annealing‐Free Bulk Heterojunction Organic Solar Cells

Block Copolymer as a Nanostructuring Agent for High‐Efficiency and Annealing‐Free Bulk Heterojunction Organic Solar Cells

Formulation strategies for optimizing the morphology of polymeric bulk heterojunction organic solar cells: a brief review

Tackling Performance Challenges in Organic Photovoltaics: An Overview about Compatibilizers

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