TY - JOUR
T1 - Interfacial Interaction Enables Enhanced Mobility in Hybrid Perovskite-Conjugated Polymer Transistors with High-k Fluorinated Polymer Dielectrics
AU - Nketia-Yawson, Vivian
AU - Nketia-Yawson, Benjamin
AU - Jo, Jea Woong
N1 - Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2023/4
Y1 - 2023/4
N2 - The charge carrier mobility of organic field-effect transistors (OFETs) has been remarkably improved through several engineering approaches and techniques by targeting pivotal parts. Herein, an ultrathin perovskite channel layer that boosts the field-effect mobility of conjugated polymer OFETs by forming perovskite-conjugated polymer hybrid semiconducting channel is introduced. The optimized lead-iodide-based perovskite-conjugated polymer hybrid channel transistors show enhanced hole mobility of over 4 cm2 V–1 s–1 (average = 2.10 cm2 V–1 s–1) with high reproducibility using a benchmark poly(3-hexylthiophene) (P3HT) polymer and employing high-k fluorinated polymer dielectrics. A significant hole carrier mobility enhancement of ≈200–400% in benzo[1,2-b:4,5:b′]dithiophene (BDT)-based conjugated polymers is also demonstrated by exploring certain interactive groups with perovskite. This significant enhancement in the transistor performance is attributed to the increased charge carrier density in the hybrid semiconducting channel and the perovskite–polymer interactions. The findings of this paper demonstrate an exceptional engineering approach for carrier mobility enhancement in hybrid perovskite-conjugated-polymer-based electronic devices.
AB - The charge carrier mobility of organic field-effect transistors (OFETs) has been remarkably improved through several engineering approaches and techniques by targeting pivotal parts. Herein, an ultrathin perovskite channel layer that boosts the field-effect mobility of conjugated polymer OFETs by forming perovskite-conjugated polymer hybrid semiconducting channel is introduced. The optimized lead-iodide-based perovskite-conjugated polymer hybrid channel transistors show enhanced hole mobility of over 4 cm2 V–1 s–1 (average = 2.10 cm2 V–1 s–1) with high reproducibility using a benchmark poly(3-hexylthiophene) (P3HT) polymer and employing high-k fluorinated polymer dielectrics. A significant hole carrier mobility enhancement of ≈200–400% in benzo[1,2-b:4,5:b′]dithiophene (BDT)-based conjugated polymers is also demonstrated by exploring certain interactive groups with perovskite. This significant enhancement in the transistor performance is attributed to the increased charge carrier density in the hybrid semiconducting channel and the perovskite–polymer interactions. The findings of this paper demonstrate an exceptional engineering approach for carrier mobility enhancement in hybrid perovskite-conjugated-polymer-based electronic devices.
KW - conjugated polymers
KW - high-k polymer dielectrics
KW - hybrid perovskite-conjugated polymer transistors
KW - lead-iodide perovskite
UR - http://www.scopus.com/inward/record.url?scp=85147035904&partnerID=8YFLogxK
U2 - 10.1002/marc.202200954
DO - 10.1002/marc.202200954
M3 - Article
C2 - 36661127
AN - SCOPUS:85147035904
SN - 1022-1336
VL - 44
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 8
M1 - 2200954
ER -