Annealing effects of Au nanoparticles embedded PEDOT:PSS in bulk heterojunction organic solar cells

Kim, Seung Ho; Park, Byung Min; Kim, Gi Ppeum; Yuh, Junhan; Chang, Young Chul; Chang, Ho

doi:10.1016/j.synthmet.2014.03.019

Cited by 9 publications

(2 citation statements)

References 28 publications

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“…Besides that, the acidic nature of PEDOT:PSS (pH between 1 and 2) corrodes the interface between the ITO and the PEDOT:PSS and causes the diffusion of Indium into the photoactive layer, to result in degradation of the device11. Thus, several approaches have been employed to modify the properties of PEDOT:PSS, including the incorporation of dopants/additives (e.g., ethylene glycol12, dimethyl sulfoxide13, ionic liquids14, or nanoparticles15), and the post-treatment of the PEDOT:PSS film with suitable materials (e.g., hexafluoroacetone16, surfactant17, salts18, and acids19). …”

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confidence: 99%

Functional solid additive modified PEDOT:PSS as an anode buffer layer for enhanced photovoltaic performance and stability in polymer solar cells

Saianand

Gopalan

et al. 2017

Sci Rep

113

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Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is most commonly used as an anode buffer layer in bulk-heterojunction (BHJ) polymer solar cells (PSCs). However, its hygroscopic and acidic nature contributes to the insufficient electrical conductivity, air stability and restricted photovoltaic (PV) performance for the fabricated PSCs. In this study, a new multifunctional additive, 2,3-dihydroxypyridine (DOH), has been used in the PEDOT: PSS buffer layer to obtain modified properties for PEDOT: PSS@DOH and achieve high PV performances. The electrical conductivity of PEDOT:PSS@DOH films was markedly improved compared with that of PEDOT:PSS. The PEDOT:PSS@DOH film exhibited excellent optical characteristics, appropriate work function alignment, and good surface properties in BHJ-PSCs. When a poly(3-hexylthiohpene):[6,6]-phenyl C61-butyric acid methyl ester blend system was applied as the photoactive layer, the power conversion efficiency of the resulting PSCs with PEDOT:PSS@DOH(1.0%) reached 3.49%, outperforming pristine PEDOT:PSS, exhibiting a power conversion enhancement of 20%. The device fabricated using PEDOT:PSS@DOH (1.0 wt%) also exhibited improved thermal and air stability. Our results also confirm that DOH, a basic pyridine derivative, facilitates adequate hydrogen bonding interactions with the sulfonic acid groups of PSS, induces the conformational transformation of PEDOT chains and contributes to the phase separation between PEDOT and PSS chains.

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mentioning

confidence: 99%

Functional solid additive modified PEDOT:PSS as an anode buffer layer for enhanced photovoltaic performance and stability in polymer solar cells

Saianand

Gopalan

et al. 2017

Sci Rep

113

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“…Recently, to improve the performance of OSCs, metallic nanoparticles (NPs) were deposited directly on the substrates, embedded within the active layer or embedded within the anodic buffer layer [11,12]. Ag is one of the most widely used materials, since their surface plasmon resonances locate in the visible range and, therefore, they interact with the peak of the solar intensity more strongly.…”

Section: Introductionmentioning

confidence: 99%

Enhancing conversion efficiency of inverted organic solar cells using Ag nanoparticles and long wavelength absorbing tin (II) phthalocyanine

Lin

et al. 2016

Organic Electronics

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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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Annealing effects of Au nanoparticles embedded PEDOT:PSS in bulk heterojunction organic solar cells

Cited by 9 publications

References 28 publications

Functional solid additive modified PEDOT:PSS as an anode buffer layer for enhanced photovoltaic performance and stability in polymer solar cells

Functional solid additive modified PEDOT:PSS as an anode buffer layer for enhanced photovoltaic performance and stability in polymer solar cells

Enhancing conversion efficiency of inverted organic solar cells using Ag nanoparticles and long wavelength absorbing tin (II) phthalocyanine

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

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