TY - JOUR
T1 - Deep-Red/Near-Infrared Electroluminescence from Single-Component Charge-Transfer Complex via Thermally Activated Delayed Fluorescence Channel
AU - Chen, Wen-Cheng
AU - Huang, Bin
AU - Ni, Shao-Fei
AU - Xiong, Yuan
AU - Rogach, Andrey L.
AU - Wan, Yingpeng
AU - Shen, Dong
AU - Yuan, Yi
AU - Chen, Jia-Xiong
AU - Lo, Ming-Fai
AU - Cao, Chen
AU - Zhu, Ze-Lin
AU - Wang, Ying
AU - Wang, Pengfei
AU - Liao, Liang-Sheng
AU - Lee, Chun-Sing
PY - 2019/9/19
Y1 - 2019/9/19
N2 - Formation of a single‐component charge‐transfer complex (SCCTC) is unveiled in solid state of an intermolecular charge‐transfer molecule 2‐(4‐(1‐phenyl‐1H‐phenanthro[9,10‐d]imidazol‐2‐yl)phenyl)anthracene‐9,10‐dione (PIPAQ). Intermolecular donor–acceptor interactions between two PIPAQ molecules is the primary driving force for self‐association and contributes to intermolecular charge transfer. The SCCTC character is fully verified by crystallographic, photophysical, electron spin resonance, and vibrational characterizations. The PIPAQ‐based SCCTC is first applied in light‐emitting devices as an emissive layer to realize efficient deep‐red/near‐infrared electroluminescence. This work provides new insights into SCCTC and represents an important step toward their applications in optoelectronic devices.
AB - Formation of a single‐component charge‐transfer complex (SCCTC) is unveiled in solid state of an intermolecular charge‐transfer molecule 2‐(4‐(1‐phenyl‐1H‐phenanthro[9,10‐d]imidazol‐2‐yl)phenyl)anthracene‐9,10‐dione (PIPAQ). Intermolecular donor–acceptor interactions between two PIPAQ molecules is the primary driving force for self‐association and contributes to intermolecular charge transfer. The SCCTC character is fully verified by crystallographic, photophysical, electron spin resonance, and vibrational characterizations. The PIPAQ‐based SCCTC is first applied in light‐emitting devices as an emissive layer to realize efficient deep‐red/near‐infrared electroluminescence. This work provides new insights into SCCTC and represents an important step toward their applications in optoelectronic devices.
KW - intermolecular charge transfer
KW - near-infrared
KW - organic light-emitting diode
KW - single-component charge-transfer complex
KW - thermally activated delayed fluorescence
UR - http://www.scopus.com/inward/record.url?scp=85068591112&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85068591112&origin=recordpage
U2 - 10.1002/adfm.201903112
DO - 10.1002/adfm.201903112
M3 - RGC 21 - Publication in refereed journal
SN - 1616-301X
VL - 29
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 38
M1 - 1903112
ER -