Plasmonic Backscattering Effect in High‐Efficient Organic Photovoltaic Devices

Kakavelakis, George; Vangelidis, Ioannis; Heuer‐Jungemann, Amelie; Kanaras, Antonios G.; Lidorikis, Elefterios; Stratakis, Emmanuel; Kymakis, Emmanuel

doi:10.1002/aenm.201501640

Cited by 55 publications

(50 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[199][200][201][202][203][204][205][206][207][208][209][210] Plasmonic enhancement is achieved mainly through three mechanisms, including far-field scattering, near-field enhancement, and charge carrier or resonant energy transfer. [206] Subwavelength-sized nanoparticles of noble metals such as Au and Ag can exhibit strong localized surface plasmon resonances (LSPRs) at the wavelengths range from UV, visible to near infrared (NIR), depending on the kind of material, their size, particle aspect ratio, and the environment.…”

Section: Plasmonic Effect For Performance Enhancement In Pec Water Spmentioning

confidence: 99%

Hierarchical Nanostructures: Design for Sustainable Water Splitting

Fang

Dong

Wei

et al. 2017

Advanced Energy Materials

284

190

View full text Add to dashboard Cite

Clean and sustainable hydrogen generation renders a magnificent prospect to fulfill the humans' dream of rebuilding energy supplying systems that work eternally and run without pollution. Water electrolysis driven by a renewable resource of energy, such as wind and solar, is a promising pathway to achieve this goal, which requires highly active and cost‐effective electrode materials to be developed. In this comprehensive review, we introduce the utilization of hierarchical nanostructures in electrocatalytic and photoelectrochemical applications. The unique emphasis is given on the synthetic strategies of attaining these hierarchical structures as well as to demonstrate their corresponding mechanisms for performance improvement. Rather than simply discussing all the methods that can be used in nanofabrication, we focus on extracting the rules for structural design based on highly accessible and reliable methods. Examples are given to illustrate the versatility of these methods in the synthesis and manipulation of hierarchical nanostructures, which are concentrated on nonprecious transition metals or their alloys/compounds. Through this study, we aim to establish valuable guidelines and provide further insights for researchers to facilitate their design of more efficient water splitting systems in the future.

show abstract

Section: Plasmonic Effect For Performance Enhancement In Pec Water Spmentioning

confidence: 99%

Hierarchical Nanostructures: Design for Sustainable Water Splitting

Fang

Dong

Wei

et al. 2017

Advanced Energy Materials

284

190

View full text Add to dashboard Cite

show abstract

“…[ 174 ] Complementary to forward scattering by localized SPRs, plasmonic backscattering effects are also verifi ed to effectively increase optical absorption in OPVs. As Kymakis et al demonstrated, [ 175 ] effi cient light trapping by incorporating Au nanorods in the TiO 2 EEL of OPVs was achieved with a PCE improvement ratio of 18% (Figure 12 f). A dual-plasmonic effect was claimed to be responsible for the broad and uniform increase in EQE spectra: the far fi eld scattering of Au nanorods inside the TiO 2 layer and the near fi eld SPR of the nanorods that penetrated into the photoactive layer.…”

Section: Modifi Cation Of Charge Extraction Layersmentioning

confidence: 76%

Light Manipulation in Organic Photovoltaics

Tang

2016

Advanced Science

View full text Add to dashboard Cite

Organic photovoltaics (OPVs) hold great promise for next‐generation photovoltaics in renewable energy because of the potential to realize low‐cost mass production via large‐area roll‐to‐roll printing technologies on flexible substrates. To achieve high‐efficiency OPVs, one key issue is to overcome the insufficient photon absorption in organic photoactive layers, since their low carrier mobility limits the film thickness for minimized charge recombination loss. To solve the inherent trade‐off between photon absorption and charge transport in OPVs, the optical manipulation of light with novel micro/nano‐structures has become an increasingly popular strategy to boost the light harvesting efficiency. In this Review, we make an attempt to capture the recent advances in this area. A survey of light trapping schemes implemented to various functional components and interfaces in OPVs is given and discussed from the viewpoint of plasmonic and photonic resonances, addressing the external antireflection coatings, substrate geometry‐induced trapping, the role of electrode design in optical enhancement, as well as optically modifying charge extraction and photoactive layers.

show abstract

“…Strong far-field scattering can increase the absorption efficiency in thin film solar cells by exploiting the effect of total internal reflection. This has been already demonstrated in amorphous-silicon-based thin-film solar cells [11] and in organic solar cells [12]. Moreover, the high local fields in the vicinity of plasmonic nanoparticles overlap not only with metal but also with the surrounding absorbing matter resulting in increased absorption, A.…”

Section: Introductionmentioning

confidence: 78%

Efficient and environmental-friendly perovskite solar cells via embedding plasmonic nanoparticles: an optical simulation study on realistic device architectures

Perrakis¹,

Kakavelakis²,

Kenanakis³

et al. 2019

Opt. Express

Self Cite

View full text Add to dashboard Cite

Solution-processed, lead halide-based perovskite solar cells have overcome important challenges over the recent years, offering low-cost and high solar power conversion efficiencies. However, they still undergo unoptimized light collection due mainly to the thin (~350 nm) polycrystalline absorber layers. Moreover, their high toxicity (due to the presence of lead in the perovskite crystalline structure) makes it necessary that the thickness of the absorber layers to be further reduced, for their future commercialization, without reducing the device performance. Here we aim to address these issues via embedding spherical plasmonic nanoparticles of various sizes, composition, concentrations, and vertical positions, for the first time in realistic halide-based perovskite solar cells architecture, and to clarify their effect on the absorption properties and enhancement. We theoretically show that plasmon-enhanced near-field effects and scattering leads to a device photocurrent enhancement of up to ~7.3% when silver spheres are embedded inside the perovskite layer. Interestingly, the combination of silver spheres in perovskite and aluminum spheres inside the hole transporting layer (PEDOT:PSS) of the solar cell leads to an even further enhancement, of up to ~12%. This approach allows the employment of much thinner perovskite layers in PSCs (up to 150 nm) to reach the same photocurrent as the nanoparticles-free device and reducing thus significantly the toxicity of the device. Providing the requirements related to the size, shape, position, composition, and concentration of nanoparticles for the PSCs photocurrent enhancement, our study establishes guidelines for a future development of highly-efficient, environmentally friendly and low-cost plasmonic perovskite solar cells.

show abstract

Plasmonic Backscattering Effect in High‐Efficient Organic Photovoltaic Devices

Cited by 55 publications

References 60 publications

Hierarchical Nanostructures: Design for Sustainable Water Splitting

Hierarchical Nanostructures: Design for Sustainable Water Splitting

Light Manipulation in Organic Photovoltaics

Efficient and environmental-friendly perovskite solar cells via embedding plasmonic nanoparticles: an optical simulation study on realistic device architectures

Contact Info

Product

Resources

About