Efficiency enhancement of organic photovoltaic devices by embedding uncapped Al nanoparticles in the hole transport layer

Krassas, Miron; Kakavelakis, George; Stylianakis, Minas M.; Vaenas, Naoum; Stratakis, Emmanuel; Kymakis, Emmanuel

doi:10.1039/c5ra14017j

Cited by 17 publications

(8 citation statements)

References 51 publications

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“…In this work, a new method for the preparation of low temperature processed amorphous TiO 2 ETL, adapted from the organic photovoltaics fabrication techniques 33,34 is presented, allowing the entire device fabrication to be conducted at temperatures lower than 150 C. PeSCs using the amorphous TiO 2 ETL were fabricated, exhibiting a maximum PCE of 13.7%.…”

mentioning

confidence: 99%

Slow photocharging and reduced hysteresis in low-temperature processed planar perovskite solar cells

et al. 2015

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confidence: 99%

Slow photocharging and reduced hysteresis in low-temperature processed planar perovskite solar cells

et al. 2015

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“…[30,45,46] The incorporated nanoparticles can induce the effects of localized surface plasmon resonance (LSPR) [47,48] and light trapping effect. [49] In this context, Pan et al doped PEDOT:PSS with V 2 O 5 nanowires. The V 2 O 5 nanowire layer could effectively block electrons from the wrong direction, while increasing the incident light paths in the hybrid transport layers due to refraction and reflection.…”

Section: Htls Based On Pedot:pss Incorporated With Metal Oxidesmentioning

confidence: 99%

Recent Progress in Hole‐Transporting Layers of Conventional Organic Solar Cells with p–i–n Structure

Zhang

et al. 2022

Adv Funct Materials

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Recently, organic solar cells (OSCs) have received rapid boosts in the power conversion efficiency (PCE), due to progresses in materials and device engineering. Several groups have reported champion PCEs over 19% in single‐junction, ternary, and tandem OSCs. In addition to the concentrated focus on the new design of OSC active materials, buffer layer materials, used for the interface layer providing the functionalities of interface charge transport and collection in OSCs, are of critical importance for the optimization of PCE. Compared with the electron transport layers (ETL), the hole transport layers (HTLs) have received less attention and are still dominated by the commercial material poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), which has limitations for the efficiency and OSC device stability enhancement. In this Review, the recent progress in HTL materials, including the modifications for PEDOT:PSS, alternative HTL materials based on polymers and inorganic oxide materials, etc, is summarized. This review also provides a summative prospect aiming to help scientists apprehend the current possibilities and challenges in this field.

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“…To maximize hole collection and reduce exciton quenching, some research groups incorporated the MNPs or core-shell MNPs at the interface of Indium Tin Oxide (ITO) and poly (3,4-ethylenedioxythiophene):polystyrene sulfonic acid (PEDOT:PSS) 19 or in the PEDOT:PSS layer. 20,21 Choi et al 22 integrated silica-coated silver nanoparticles between PEDOT:PSS and the active layer in order to prevent possible NP aggregations inside the active layer or disturb its morphology. Their results revealed a remarkable enhancement of PCE.…”

Section: Introductionmentioning

confidence: 99%

Effect of shell thickness of gold-silica core-shell nanospheres embedded in an organic buffer matrix for plasmonic solar cells

N’Konou

Many

Ruiz

et al. 2018

Journal of Applied Physics

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The integration of metal nanoparticles in an organic buffer matrix for plasmonic organic solar cells (OSCs) has been explored as a route for improving the photovoltaic performance, with localized electromagnetic field enhancement around nanoparticles. We investigate the optical behavior of gold-silica core-shell nanospheres (Au@SiO 2 NSs) with different shell thicknesses integrated into a 30 nm-thick poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) layer which is traditionally used as a buffer layer in OSCs. The morphology and size of the chemically synthesized Au@SiO 2 NSs are determined by TEM, indicating that the average diameter of the Au core is about 50 nm, while the thickness of the dielectric shell can be adjusted to around 5 or 10 nm. The effect of Au@SiO 2 NSs on the surrounding electromagnetic field in such a heterogeneous matrix and subsequent multilayers is examined using a numerical simulation based on a 3D-FDTD method. Furthermore, a broadband absorption enhancement in the films, which can be primarily attributed to far-field scattering and also to the localized surface plasmon resonance around the wavelength of 530 nm, is observed in the simulated and measured absorption spectra. The analysis of the electromagnetic field between NSs and the active layer using Raman spectroscopy is also presented. The Raman spectra confirm that a plasmon effect occurs and induces a strong field enhancement; this does not change the Raman peak position but increases its signal intensity depending on the silica shell's thickness. As a result, plasmonic devices including Au@SiO 2 NSs with a 5 nm-shell thickness present the best optical behavior compared to bare NSs or 10 nm-thick shell Au@SiO 2 NSs.

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Efficiency enhancement of organic photovoltaic devices by embedding uncapped Al nanoparticles in the hole transport layer

Abstract: The effects of incorporating uncapped aluminum nanoparticles, fabricated by laser ablation in liquid, in the hole transport layer of organic photovoltaic devices were systematically investigated. Resulting in about 9% enhancement in the power conversion efficiency.

Cited by 17 publications

References 51 publications

Slow photocharging and reduced hysteresis in low-temperature processed planar perovskite solar cells

Slow photocharging and reduced hysteresis in low-temperature processed planar perovskite solar cells

Recent Progress in Hole‐Transporting Layers of Conventional Organic Solar Cells with p–i–n Structure

Effect of shell thickness of gold-silica core-shell nanospheres embedded in an organic buffer matrix for plasmonic solar cells

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