Highly Efficient Organic Light–Emitting Diode Using DNA as Scattering Layer DOI Creative Commons
J. Kim,

Hyejeong Yeon,

Hye‐Ryung Choi

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 11, 2024

Abstract Herein, an organic light–emitting diode (OLED) is fabricated with increased luminous efficiency and biocompatibility by topographic DNA film. In addition to the natural abundance of DNA, its semi‐flexible characteristics facilitated emergence liquid crystal phase, allowing formation a periodic wavy undulation structure applying shear force. The resultant zigzag possesses sufficient periodicity roughness, enhancing effective scattering emitted light. Furthermore, DNA‐coated red OLED demonstrates cell proliferative effects exhibits high electrical thermal stability even in bent state, suggesting potential application attachable OLED‐based light therapy.

Language: Английский

Wearable and Implantable Light-Emitting Diodes and Their Biomedical Applications DOI
Gi Doo, Dae‐Hyeong Kim, Dong Chan Kim

et al.

Korean Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: 41(1), P. 1 - 24

Published: Jan. 1, 2024

Language: Английский

Citations

19
Wearable Photomedicine for Neonatal Jaundice Treatment Using Blue Organic Light‐Emitting Diodes (OLEDs): Toward Textile‐Based Wearable Phototherapeutics DOI Creative Commons

Seungyeop Choi,

Yongmin Jeon, Jeong Hyun Kwon

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(35)

Published: Oct. 30, 2022

Neonatal jaundice is a very common disease in newborns and can lead to brain damage or death severe cases. Phototherapy with light-emitting diode (LED) arrays widely used as the easiest fastest way relieve newborns, but it has distinct disadvantages such loss of water patient, retina, separation from parents. In this paper, novel light source-based phototherapy for neonatal proposed using textile-based wearable organic (OLED) platform that move flexibly conform curvature human body. The soft flexible blue OLED designed have peak wavelength 470 nm, suitable treatment, shows performance (>20 µW cm

Language: Английский

Citations

42
Permeable Bioelectronics toward Biointegrated Systems DOI
Sunghoon Lee, Xiaoping Liang, Joo Sung Kim

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(10), P. 6543 - 6591

Published: May 10, 2024

Bioelectronics integrates electronics with biological organs, sustaining the natural functions of organs. Organs dynamically interact external environment, managing internal equilibrium and responding to stimuli. These interactions are crucial for maintaining homeostasis. Additionally, organs possess a soft stretchable nature; encountering objects differing properties can disrupt their function. Therefore, when electronic devices come into contact objects, permeability these devices, enabling substance exchanges mechanical compliance inherent functionality This review discusses recent advancements in permeable bioelectronics, emphasizing materials, structures, wide range applications. The also addresses current challenges potential solutions, providing insights integration

Language: Английский

Citations

12
Advancing Cancer Treatment and Diagnosis: A Review on Photodynamic Therapy Using OLED Technology DOI Creative Commons
R.K. Tiwari, Rajesh Mishra, Sanjeev Sharma

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(6), P. 1305 - 1305

Published: March 14, 2025

Photodynamic therapy (PDT) is an innovative and non-invasive approach to treating apparent tumours with minimal toxicity. PDT has a long-standing application in antitumor treatment utilizing various photosensitizers (PSs) for different tumours. Historically, light served as therapeutic tool many diseases. involves dual process which energy PSs are combined ablate tumour cells following activation. In general, exhibits reduced side effects toxicity compared chemotherapy radiotherapy, it spares the extracellular matrix, facilitating excellent tissue healing minimizing scarring. addition, can serve diagnostic roles identification, termed photodynamic diagnosis (PDD). Advancements flexible sources that produce uniform illumination could significantly enhance consistency of delivery. This review outlines clinical applications OLEDs cancer, addressing both methods. Furthermore, we will explore cases using OLEDs. particular, antimicrobial targets antibiotic-resistant strains diabetic foot ulcers, while metronomic promotes cancer cell apoptosis through prolonged, low-intensity exposure. Our emphasis on employing organic light-emitting diodes (OLEDs). combination NIR-OLEDs examined its potential tumour-targeting effectiveness, possibly exceeding results standalone treatments.

Language: Английский

Citations

1
Smart textiles for chronic disease management: Advancements, applications, and future prospects DOI
Ziying Wang, Xinqi Zhao, Kai Yan

et al.

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 164, P. 100987 - 100987

Published: April 2, 2025

Language: Английский

Citations

1
Heteroleptic Ir(III)-based near-infrared organic light-emitting diodes with high radiance capacity DOI Creative Commons
Yongjin Park,

Gyeong Seok Lee,

Woochan Lee

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Jan. 25, 2023

Abstract Near-infrared organic light-emitting diodes (NIR OLEDs) with heavy metals are regularly reported due to the advantages of their various applications in healthcare services, veil authentication, and night vision displays. For commercial applications, it is necessary look at radiance capacity (RC) instead because power consumption. However, recent papers still only simple high performance do not device from point view RC. To overcome this hurdle, we designed Ir(III)-based heteroleptic NIR materials two types auxiliary ligand. The proposed emitters achieve a highly oriented horizontal dipole ratio (Ir(mCPDTiq) 2 tmd, complex 1 : 80%, Ir(mCPDTiq) acac, 81%) short radiative lifetime ( 386 ns, 323 ns). also shows an extremely low turn-on voltage (V on ) 2.2 V RC 720 mW/sr/m /V. results demonstrated outstanding among OLEDs similar emission peak.

Language: Английский

Citations

19
OLED catheters for inner-body phototherapy: A case of type 2 diabetes mellitus improved via duodenal photobiomodulation DOI Creative Commons
Jee Hoon Sim, Jinhee Kwon, Hyeonwook Chae

et al.

Science Advances, Journal Year: 2023, Volume and Issue: 9(35)

Published: Sept. 1, 2023

Phototherapeutics has shown promise in treating various diseases without surgical or drug interventions. However, it is challenging to use inner-body applications due the limited light penetration depth through skin. Therefore, we propose an organic light-emitting diode (OLED) catheter as effective photobiomodulation (PBM) platform useful for tubular organs such duodenums. A fully encapsulated highly flexible OLED mounted over a round columnar structure, producing axially uniform illumination local hotspots. The biocompatible and airtight can operate aqueous environments extended periods, meeting essential requirements medical applications. In diabetic Goto-Kakizaki (GK) rat model, red delivering 798 mJ of energy reduce hyperglycemia insulin resistance compared sham group. Results are further supported by subdued liver fibrosis, illustrating immense potential OLED-catheter–based internal PBM treatment type 2 diabetes other yet be identified.

Language: Английский

Citations

18
Stretchable OLEDs based on a hidden active area for high fill factor and resolution compensation DOI Creative Commons
Donggyun Lee, Su-Bon Kim, Taehyun Kim

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 4, 2024

Abstract Stretchable organic light-emitting diodes (OLEDs) have emerged as promising optoelectronic devices with exceptional degree of freedom in form factors. However, stretching OLEDs often results a reduction the geometrical fill factor (FF), that is ratio an active area to total area, thereby limiting their potential for broad range applications. To overcome these challenges, we propose three-dimensional (3D) architecture adopting hidden serves dual role both emitting and interconnector. For this purpose, ultrathin OLED first attached 3D rigid island array structure through quadaxial precise, deformation-free alignment. A portion concealed by letting it ‘fold in’ between adjacent islands initial, non-stretched condition gradually surfaces top upon stretching. This design enables proposed stretchable exhibit relatively high FF not only initial state but also after substantial deformation corresponding 30% biaxial system strain. Moreover, passive-matrix displays utilize are shown be configurable compensation post-stretch resolution loss, demonstrating efficacy approach realizing full OLEDs.

Language: Английский

Citations

7
Overcoming Downscaling Limitations in Organic Semiconductors: Strategies and Progress DOI Open Access
Taehyun Park, Minseo Kim, Eun Kwang Lee

et al.

Small, Journal Year: 2023, Volume and Issue: 20(9)

Published: Oct. 19, 2023

Abstract Organic semiconductors have great potential to revolutionize electronics by enabling flexible and eco‐friendly manufacturing of electronic devices on plastic film substrates. Recent research development led the creation printed displays, radio‐frequency identification tags, smart labels, sensors based organic electronics. Over last 3 decades, significant progress has been made in realizing with unprecedented features, such as wearable sensors, disposable electronics, foldable through exploitation desirable characteristics Neverthless, down‐scalability remains a crucial consideration. To address this, efforts are extensively explored. It is utmost importance further develop these alternative patterning methods overcome downscaling challenge. This review comprehensively discusses strategies aimed at overcoming limitations semiconductors, particular focus four main areas: 1) lithography‐compatible 2) fine printing methods, 3) material deposition pre‐fabricated devices, 4) vertical‐channeled By discussing areas, full can be unlocked, field sustainable advanced.

Language: Английский

Citations

16
Highly Transparent Red Organic Light-Emitting Diodes with AZO/Ag/AZO Multilayer Electrode DOI Creative Commons
Dongwoon Lee, Minseok Song,

Yong Hyeok Seo

et al.

Micromachines, Journal Year: 2024, Volume and Issue: 15(1), P. 146 - 146

Published: Jan. 18, 2024

Free-form factor optoelectronics is becoming more important for various applications. Specifically, flexible and transparent offers the potential to be adopted in wearable devices displays, solar cells, or biomedical However, current electrodes are limited conductivity flexibility. This study aims address these challenges explore solutions. For next-generation conductive electrode, Al-doped zinc oxide (AZO) silver (AZO/Ag/AZO) deposited by in-line magnetron sputtering without thermal treatment was investigated, this electrode used as a organic light-emitting diode (OLED) anode maximize transparency characteristics. The experiment simulation involved adjusting thickness of Ag AZO OLED structure enhance transmittance device performance. AZO/Ag/AZO with 12 nm 32 achieved results highest figure merit (FOM) (Φ550 = 4.65 mΩ−1) lowest roughness. full (TrOLED) Mg:Ag cathode reached 64.84% at 550 nm, 300 cd/m2 about 4 V. demonstrate feasibility adopting substrates, such PET, need treatment. research provides valuable insights into development electronic devices.

Language: Английский

Citations

5