In Situ Doping of the PEDOT Top Electrode for All-Solution-Processed Semitransparent Organic Solar Cells

Ki, Taeyoon; Jang, Chelim; Jin, Jong Sung; Kim, Jehan; Kim, Nara; Moon, Heehun; Jang, Soo-Young; Kwon, Sooncheol; Jang, Jubin; Kang, Hongkyu; Lee, Kwanghee

doi:10.1021/acsami.3c09984

Cited by 5 publications

(1 citation statement)

References 66 publications

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“…Previous research studies have reported improved performance of flexible organic optoelectronic devices by modifying the lower electrodes, thus allowing their use in real life. − Among these, many studies have improved performance by modifying the PEDOT:PSS electrodes made of conductive polymers, and generally, to use PEDOT:PSS as an electrode, solvent additives or highly conductive materials such as metal nanowires are mixed to reduce the high resistance of the conductive polymer. − ,− PEDOT:PSS electrode studies with these contents were effective in reducing the electrode resistance, but additional studies on mechanical properties and driving durability are still needed. − , …”

Section: Introductionmentioning

confidence: 99%

Conductive PEDOT-Dominant Surface of Transparent Electrode Patch via Selective Phase Transfer for Efficient Flexible Photoelectronic Devices

Lee,

Kim,

Jang

et al. 2024

ACS Appl. Mater. Interfaces

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In this study, a conductive patch for a flexible organic optoelectronic device is proposed and implemented using a poly(3,4ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) polymer electrode based on a transfer process to achieve its high conductivity with an efficient conductive pathway. This PEDOTdominant surface is induced by phase inversion during the transfer process owing to the solvent affinity of the PSS phase. The PEDOT:PSS patch formed by the transfer process minimizes the power loss in a flexible optoelectronic device due to the improved charge collection and suppressed leakage current responses. In addition, the bending stability of the flexible photoelectronic device is also enhanced by maintaining performance for 1000 bending cycles. Therefore, in the fabrication of a transparent flexible conductive PEDOT:PSS patch, the transfer process of a conducting polymer constitutes an effective strategy that can improve conductivity and embellished morphology.

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Section: Introductionmentioning

confidence: 99%

Conductive PEDOT-Dominant Surface of Transparent Electrode Patch via Selective Phase Transfer for Efficient Flexible Photoelectronic Devices

Lee,

Kim,

Jang

et al. 2024

ACS Appl. Mater. Interfaces

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Electroactive Biomaterials Regulate the Electrophysiological Microenvironment to Promote Bone and Cartilage Tissue Regeneration

Chen,

Yang,

Cai

et al. 2024

Adv Funct Materials

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The incidence of large bone and articular cartilage defects caused by traumatic injury is increasing worldwide; the tissue regeneration process for these injuries is lengthy due to limited self‐healing ability. Endogenous bioelectrical phenomenon has been well recognized to play an important role in bone and cartilage homeostasis and regeneration. Studies have reported that electrical stimulation (ES) can effectively regulate various biological processes and holds promise as an external intervention to enhance the synthesis of the extracellular matrix, thereby accelerating the process of bone and cartilage regeneration. Hence, electroactive biomaterials have been considered a biomimetic approach to ensure functional recovery by integrating various physiological signals, including electrical, biochemical, and mechanical signals. This review will discuss the role of endogenous bioelectricity in bone and cartilage tissue, as well as the effects of ES on cellular behaviors. Then, recent advances in electroactive materials and their applications in bone and cartilage tissue regeneration are systematically overviewed, with a focus on their advantages and disadvantages as tissue repair materials and performances in the modulation of cell fate. Finally, the significance of mimicking the electrophysiological microenvironment of target tissue is emphasized and future development challenges of electroactive biomaterials for bone and cartilage repair strategies are proposed.

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A Novel Ultra‐Thin and Smooth Sm:Ag Composite Electrode with High Visible Transmittance Enables Efficient Color‐Neutral Semitransparent Organic Solar Cells

Zhao,

Wu,

Tang

et al. 2024

Advanced Optical Materials

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Transparent top electrodes are crucial for enhancing the performance of semitransparent organic solar cells (ST‐OSCs). The commonly evaporated ultra‐thin silver (Ag) electrode in ST‐OSCs suffers from limited transparency and conductivity due to its island‐like growth, posing a challenge in achieving desired conductivity and low optical loss. Here, a novel composite film is prepared by doping a small amount of samarium (Sm) into Ag during evaporation. The incorporation of Sm facilitates to form a continuous ultra‐thin Ag film by suppressing isolated island growth. A 15 nm Sm:Ag composite film with an optimized mass ratio of 1:30 exhibits a sheet resistance of 6 Ω □−1 and an average visible transmittance (AVT) of 66%, much better than 20 Ω □−1 and 43% of the pure Ag analogue. By employing the Sm:Ag electrode with an optical coupling layer, the ST‐OSCs demonstrate a power conversion efficiency of 10.89% and an AVT of 37.1%, resulting in a light utilization efficiency of 4.04%. Moreover, the resultant ST‐OSCs demonstrate superior color neutrality with a color rendering index of 91.9, representing one of the highest values among the ST‐OSCs with LUE exceeding 4% reported to date. This work provides a novel transparent top electrode with superior conductivity and transmittance for ST‐OSCs.

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In Situ Doping of the PEDOT Top Electrode for All-Solution-Processed Semitransparent Organic Solar Cells

Cited by 5 publications

References 66 publications

Conductive PEDOT-Dominant Surface of Transparent Electrode Patch via Selective Phase Transfer for Efficient Flexible Photoelectronic Devices

Conductive PEDOT-Dominant Surface of Transparent Electrode Patch via Selective Phase Transfer for Efficient Flexible Photoelectronic Devices

Electroactive Biomaterials Regulate the Electrophysiological Microenvironment to Promote Bone and Cartilage Tissue Regeneration

A Novel Ultra‐Thin and Smooth Sm:Ag Composite Electrode with High Visible Transmittance Enables Efficient Color‐Neutral Semitransparent Organic Solar Cells

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