Metallic charge transport in conjugated molecular bilayers

Kuakua Lu; Yun Li; Qijing Wang; Linlu Wu; Xinglong Ren; Xu Chen; Luhao Liu; Yating Li; Xiaoming Xu; Qingkai Zhang; Di Wang; Liqi Zhou; Mingfei Xiao; Sai Jiang; Mengjiao Pei; Haoxin Gong; William Wood; Ian E. Jacobs; Junzhan Wang; Gang Chen; Peng Wang; Zhaosheng Li; Chunfeng Zhang; Xinran Wang; Xu Wu; Yeliang Wang; Wei Ji; Songlin Li; Jingsi Qiao; Yi Shi; Henning Sirringhaus

doi:10.1038/s41928-025-01553-5

Metallic charge transport in conjugated molecular bilayers

Kuakua Lu
, Yun Li^*
, Qijing Wang^*
, Linlu Wu
, Xinglong Ren
, Xu Chen
, Luhao Liu
, Yating Li
, Xiaoming Xu
, Qingkai Zhang
, Di Wang
, Liqi Zhou
, Mingfei Xiao
, Sai Jiang
, Mengjiao Pei
, Haoxin Gong
, William Wood
, Ian E. Jacobs
, Junzhan Wang
, Gang Chen

Peng Wang, Zhaosheng Li, Chunfeng Zhang, Xinran Wang, Xu Wu, Yeliang Wang, Wei Ji, Songlin Li, Jingsi Qiao^*, Yi Shi^*, Henning Sirringhaus^*

^*此作品的通讯作者

Nanjing University
University of Cambridge
Renmin University of China
Renmin University of China
Liaoning Academy of Materials
Shanghai University
Changzhou University
ShanghaiTech University
University of Warwick
Beijing Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

1 引用（Scopus）

摘要

Metallic charge transport of field-induced carriers can be observed in single-crystal silicon over a wide temperature range. Such behaviour is rare in undoped organic semiconductors but is beneficial for engineering devices with advanced performance. Here we report metallic charge transport in conjugated molecular bilayers down to 8 K with an electrical conductivity of up to 245 S cm⁻¹ and a Hall mobility larger than 100 cm² V⁻¹ s⁻¹ at 20 K. We use molecular-crystal bilayers of the organic semiconductor 2-decyl-7-phenyl-[1]benzothieno[3,2-b][1]benzothiophene. We infer that this transport behaviour originates from the phenyl bridge coupling between the two molecular layers, which suppresses molecular vibrations and weakens Coulomb interactions. We develop a controlled method for introducing defects, using which we observe a disorder-driven metal–insulator transition in the molecular crystal.

源语言	英语
页（从-至）	246-256
页数	11
期刊	Nature Electronics
卷	9
期	3
DOI	https://doi.org/10.1038/s41928-025-01553-5
出版状态	已出版 - 3月 2026
已对外发布	是

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@article{ea04d4fca75e417a98007c249b8c1ebb,

title = "Metallic charge transport in conjugated molecular bilayers",

abstract = "Metallic charge transport of field-induced carriers can be observed in single-crystal silicon over a wide temperature range. Such behaviour is rare in undoped organic semiconductors but is beneficial for engineering devices with advanced performance. Here we report metallic charge transport in conjugated molecular bilayers down to 8 K with an electrical conductivity of up to 245 S cm−1 and a Hall mobility larger than 100 cm2 V−1 s−1 at 20 K. We use molecular-crystal bilayers of the organic semiconductor 2-decyl-7-phenyl-[1]benzothieno[3,2-b][1]benzothiophene. We infer that this transport behaviour originates from the phenyl bridge coupling between the two molecular layers, which suppresses molecular vibrations and weakens Coulomb interactions. We develop a controlled method for introducing defects, using which we observe a disorder-driven metal{\textendash}insulator transition in the molecular crystal.",

author = "Kuakua Lu and Yun Li and Qijing Wang and Linlu Wu and Xinglong Ren and Xu Chen and Luhao Liu and Yating Li and Xiaoming Xu and Qingkai Zhang and Di Wang and Liqi Zhou and Mingfei Xiao and Sai Jiang and Mengjiao Pei and Haoxin Gong and William Wood and Jacobs, \{Ian E.\} and Junzhan Wang and Gang Chen and Peng Wang and Zhaosheng Li and Chunfeng Zhang and Xinran Wang and Xu Wu and Yeliang Wang and Wei Ji and Songlin Li and Jingsi Qiao and Yi Shi and Henning Sirringhaus",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2026.",

year = "2026",

month = mar,

doi = "10.1038/s41928-025-01553-5",

language = "English",

volume = "9",

pages = "246--256",

journal = "Nature Electronics",

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Lu, K, Li, Y, Wang, Q, Wu, L, Ren, X, Chen, X, Liu, L, Li, Y, Xu, X, Zhang, Q, Wang, D, Zhou, L, Xiao, M, Jiang, S, Pei, M, Gong, H, Wood, W, Jacobs, IE, Wang, J, Chen, G, Wang, P, Li, Z, Zhang, C, Wang, X, Wu, X , Wang, Y, Ji, W, Li, S, Qiao, J, Shi, Y & Sirringhaus, H 2026, 'Metallic charge transport in conjugated molecular bilayers', Nature Electronics, 卷 9, 号码 3, 页码 246-256. https://doi.org/10.1038/s41928-025-01553-5

TY - JOUR

T1 - Metallic charge transport in conjugated molecular bilayers

AU - Lu, Kuakua

AU - Li, Yun

AU - Wang, Qijing

AU - Wu, Linlu

AU - Ren, Xinglong

AU - Chen, Xu

AU - Liu, Luhao

AU - Li, Yating

AU - Xu, Xiaoming

AU - Zhang, Qingkai

AU - Wang, Di

AU - Zhou, Liqi

AU - Xiao, Mingfei

AU - Jiang, Sai

AU - Pei, Mengjiao

AU - Gong, Haoxin

AU - Wood, William

AU - Jacobs, Ian E.

AU - Wang, Junzhan

AU - Chen, Gang

AU - Wang, Peng

AU - Li, Zhaosheng

AU - Zhang, Chunfeng

AU - Wang, Xinran

AU - Wu, Xu

AU - Wang, Yeliang

AU - Ji, Wei

AU - Li, Songlin

AU - Qiao, Jingsi

AU - Shi, Yi

AU - Sirringhaus, Henning

PY - 2026/3

Y1 - 2026/3

N2 - Metallic charge transport of field-induced carriers can be observed in single-crystal silicon over a wide temperature range. Such behaviour is rare in undoped organic semiconductors but is beneficial for engineering devices with advanced performance. Here we report metallic charge transport in conjugated molecular bilayers down to 8 K with an electrical conductivity of up to 245 S cm−1 and a Hall mobility larger than 100 cm2 V−1 s−1 at 20 K. We use molecular-crystal bilayers of the organic semiconductor 2-decyl-7-phenyl-[1]benzothieno[3,2-b][1]benzothiophene. We infer that this transport behaviour originates from the phenyl bridge coupling between the two molecular layers, which suppresses molecular vibrations and weakens Coulomb interactions. We develop a controlled method for introducing defects, using which we observe a disorder-driven metal–insulator transition in the molecular crystal.

AB - Metallic charge transport of field-induced carriers can be observed in single-crystal silicon over a wide temperature range. Such behaviour is rare in undoped organic semiconductors but is beneficial for engineering devices with advanced performance. Here we report metallic charge transport in conjugated molecular bilayers down to 8 K with an electrical conductivity of up to 245 S cm−1 and a Hall mobility larger than 100 cm2 V−1 s−1 at 20 K. We use molecular-crystal bilayers of the organic semiconductor 2-decyl-7-phenyl-[1]benzothieno[3,2-b][1]benzothiophene. We infer that this transport behaviour originates from the phenyl bridge coupling between the two molecular layers, which suppresses molecular vibrations and weakens Coulomb interactions. We develop a controlled method for introducing defects, using which we observe a disorder-driven metal–insulator transition in the molecular crystal.

UR - https://www.scopus.com/pages/publications/105028206595

U2 - 10.1038/s41928-025-01553-5

DO - 10.1038/s41928-025-01553-5

M3 - Article

AN - SCOPUS:105028206595

SN - 2520-1131

VL - 9

SP - 246

EP - 256

JO - Nature Electronics

JF - Nature Electronics

IS - 3

ER -

Metallic charge transport in conjugated molecular bilayers

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