TY - JOUR
T1 - Intrinsically Stretchable Emissive Layer for Green and Red Phosphorescent OLEDs
T2 - Small Molecules Blended with SEBS Elastomer
AU - Ha, Hyein
AU - Kim, Jaeseung
AU - Shim, Young Jae
AU - Irfan, Aqsa
AU - Nimbalkar, Ajay
AU - Elumalai, Ramachandran
AU - Le, Thi Na
AU - Kim, Hyunjung
AU - Suh, Min Chul
N1 - Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2023/11/10
Y1 - 2023/11/10
N2 - In the field of stretchable electronics, intrinsically stretchable organic light-emitting diodes (IS-OLEDs) are considered to be essential units. However, research on stretchable electroluminescent layers for light-emitting devices is limited. The most common method to obtain an effective stretchable emitting layer is blending a conjugated polymer with an elastomer. In this study, blending small molecules with a thermoplastic styrene-ethylene-butylene-styrene (SEBS) elastomer to fabricate a stretchable emitting layer is proposed. The mechanical, electrical, and morphological properties of the blended films are studied. The results show that the blended films can be stretched up to 200% without any morphological change such as cracking or particle shedding. Additionally, an OLED is fabricated with a stretchable electroluminescent layer and demonstrated its functionality.
AB - In the field of stretchable electronics, intrinsically stretchable organic light-emitting diodes (IS-OLEDs) are considered to be essential units. However, research on stretchable electroluminescent layers for light-emitting devices is limited. The most common method to obtain an effective stretchable emitting layer is blending a conjugated polymer with an elastomer. In this study, blending small molecules with a thermoplastic styrene-ethylene-butylene-styrene (SEBS) elastomer to fabricate a stretchable emitting layer is proposed. The mechanical, electrical, and morphological properties of the blended films are studied. The results show that the blended films can be stretched up to 200% without any morphological change such as cracking or particle shedding. Additionally, an OLED is fabricated with a stretchable electroluminescent layer and demonstrated its functionality.
KW - X-ray reflectivity
KW - blending of elastomers
KW - high strain capability
KW - intrinsically stretchable EML
KW - phase separations
KW - small molecules
UR - http://www.scopus.com/inward/record.url?scp=85169413126&partnerID=8YFLogxK
U2 - 10.1002/admt.202300924
DO - 10.1002/admt.202300924
M3 - Article
AN - SCOPUS:85169413126
SN - 2365-709X
VL - 8
JO - Advanced Materials Technologies
JF - Advanced Materials Technologies
IS - 21
M1 - 2300924
ER -