Citation: Yingying Hu, Yanan Sun, Dawei Liu, Zhilei Zhang, Chunlei Li, Jie Liu, Lang Jiang. Thermally stable organic ultrathin single-crystal field-effect transistors based on anthracene derivatives[J]. Chinese Chemical Letters, ;2026, 37(11): 112330. doi: 10.1016/j.cclet.2025.112330 shu

Thermally stable organic ultrathin single-crystal field-effect transistors based on anthracene derivatives

Yingying Hu ^{a, b} ,
Yanan Sun ^d ,
Dawei Liu ^{a, b} ,
Zhilei Zhang ^a ,
Chunlei Li ^a ,
Jie Liu ^{a, *,} ,
Lang Jiang ^{a, c, **,}

a.
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
b.
Department of Chemistry, University of Chinese Academy of Sciences, Beijing 100049, China
c.
School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
d.
Institute of Semiconductors, Henan Academy of Sciences, Zhengzhou 450000, China

^**

liujie2009@iccas.ac.cn

ljiang@hebut.edu.cn

Received Date: 3 September 2025
Revised Date: 12 December 2025
Accepted Date: 25 December 2025
Available Online: 27 December 2025

Figures(5)

High-mobility and thermally stable organic semiconductors are crucial for advancing practical organic electronics. Here, we designed and synthesized three p-type asymmetric anthracene derivatives, namely C6-ADN, ADN-C6, and C6-ADN-C6, by varying the alkyl chain substitution positions. Ultrathin single crystals with monolayer and bi-layer thickness were obtained by the drop-casting method. Single-crystal field-effect transistors (SCFETs) based on C6-ADN, ADN-C6, and C6-ADN-C6 exhibited maximum hole mobilities of 1.91, 4.05, and 1.30 cm² V^-1 s^-1, respectively. Furthermore, the thermal stabilities of these SCFETs were investigated. At 140 ℃, the ADN-C6 SCFET retains > 80% of its initial performance, whereas the C6-ADN and C6-ADN-C6 devices exhibit a performance below this threshold. These results demonstrate that the strategic positioning of the alkyl chain in asymmetric anthracene derivatives significantly enhances thermal stability, thereby facilitating the development of high-performance and thermally robust ultrathin SCFETs.
- Organic semiconductors,
- Asymmetric anthracene derivatives,
- Ultrathin single-crystal,
- Field-effect transistors,
- Thermal stability
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