Organic Charge‐Transfer Complex based Microstructure Interfaces for Solution‐Processable Organic Thin‐Film Transistors toward Multifunctional Sensing

Liu, Zhiqi; Ju, Zhengkun; Ma, Shuang; Li, Wenju; Chen, Jinqiu; Yang, Bo; Zhang, Jing

doi:10.1002/aelm.202300205

Cited by 5 publications

(1 citation statement)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the strong potential for improvement, we emphasize the importance of further optimizing the device to achieve higher carrier mobilities. Recent findings by Liu et al demonstrate the effectiveness of micro/nanoscale interface passivation combined with flexible polymer dielectrics in enhancing the electrical performance of OFETs [44]; this may be an effective approach for the optimization of devices based on C70/Fc nanosheets. The ambipolar characteristics observed in the C70/Fc nanosheets were also found in the C60/Fc nanosheets [34].…”

Section: Resultsmentioning

confidence: 99%

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Mahdaoui,

Hirata,

Nagaoka

et al. 2023

Nanomaterials

View full text Add to dashboard Cite

Organic cocrystals, which are assembled by noncovalent intermolecular interactions, have garnered intense interest due to their remarkable chemicophysical properties and practical applications. One notable feature, namely, the charge transfer (CT) interactions within the cocrystals, not only facilitates the formation of an ordered supramolecular network but also endows them with desirable semiconductor characteristics. Here, we present the intriguing ambipolar CT properties exhibited by nanosheets composed of single cocrystals of C70/ferrocene (C70/Fc). When heated to 150 °C, the initially ambipolar monoclinic C70/Fc nanosheet-based field-effect transistors (FETs) were transformed into n-type face-centered cubic (fcc) C70 nanosheet-based FETs owing to the elimination of Fc. This thermally induced alteration in the crystal structure was accompanied by an irreversible switching of the semiconducting behavior of the device; thus, the device transitions from ambipolar to unipolar. Importantly, the C70/Fc nanosheet-based FETs were also found to be much more thermally stable than the previously reported C60/Fc nanosheet-based FETs. Furthermore, we conducted visible/near-infrared diffuse reflectance and photoemission yield spectroscopies to investigate the crucial role played by Fc in modulating the CT characteristics. This study provides valuable insights into the overall functionality of these nanosheet structures.

show abstract

Section: Resultsmentioning

confidence: 99%

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Mahdaoui,

Hirata,

Nagaoka

et al. 2023

Nanomaterials

View full text Add to dashboard Cite

show abstract

Designing ZrO2-blended nanocomposite MIM capacitors for future OFET applications and their characterizations

Tavasli,

Majewski,

Uddin

et al. 2025

Materials Science in Semiconductor Processing

View full text Add to dashboard Cite

Flexible Piezoelectric-Coupling Organic Transistor-Based Press Sensors with Ferroelectric Charge-Transfer Complex Integrated Dielectrics

Wang,

Liu,

et al. 2024

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

The development of flexible tactile sensors is critical for wearable electronics and human−computer interfaces. The porous structure and floating gate strategy in organic transistors are not easy to control and usually lead to a relatively large detection limit. To overcome these issues, effectively combining the piezoelectric effect into transistors in a simple way enhances the capacitance sensing and amplifies the readout characteristics. In this paper, solution-processed transistor-based pressure sensors were fabricated by using polar organic chargetransfer complex/dielectric polymer blend solutions. The hybrid dielectrics integrate well-distributed ferroelectric micro-/nanoparticles via tuning the doping ratio and exhibit a good insulating property. The devices presented a pressure sensitivity of 3.2 kPa −1 , good durability, and a low detection limit of 0.01 kPa. Moreover, the sensors were successfully introduced to build a sensor-robotic control system, switch, and haptic array keyboard. The well-integrated dielectric design method provides a simple and powerful way to construct flexible pressure sensors with great potential.

show abstract

Organic Charge‐Transfer Complex based Microstructure Interfaces for Solution‐Processable Organic Thin‐Film Transistors toward Multifunctional Sensing

Cited by 5 publications

References 44 publications

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Ambipolar to Unipolar Conversion in C70/Ferrocene Nanosheet Field-Effect Transistors

Designing ZrO2-blended nanocomposite MIM capacitors for future OFET applications and their characterizations

Flexible Piezoelectric-Coupling Organic Transistor-Based Press Sensors with Ferroelectric Charge-Transfer Complex Integrated Dielectrics

Contact Info

Product

Resources

About