Thin films of azobenzene dicarboxylate-based Cu-MOF: Generating electronic heterostructure by molecular doping

IF 1.7 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Journal of Chemical Sciences Pub Date : 2025-03-29 DOI:10.1007/s12039-025-02365-y

Sauvik Saha, Therese Mariya Jose, Mini Kalyani, Nahid Hassan, Umashis Bhoi, Ajay Ugale, Nirmalya Ballav

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引用次数: 0

Abstract

Circumventing the limitations of lattice-mismatch factors in usual heterostructured thin films of metal-organic frameworks (MOFs), recent studies have achieved exotic electronic heterostructures for possible next-generation thin film device applications. This study reports a robust strategy to significantly enhance the conductivity in thin films of 4,4′-azobenzene dicarboxylate (ADA) linker-based 1D Cu-MOF while also creating an electronic heterostructure system in the process and explores how photoexcitation might perturb its electrical transport behaviour.

Graphical abstract

Fabrication of highly-uniform and crystalline thin films of 4,4′-azobenzene dicarboxylate (ADA) linker-based Cu-MOF, referred to as Cu-ADA thin films, through a layer-by-layer (LbL) method is reported. Molecular doping of TCNQ (tetracyanoquinodimethane) in Cu-ADA thin films led to the formation of an electronic heterostructure exhibiting rectification of current and enhancement of electrical conductance in the cross-plane and in-plane configurations, respectively.

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最近的研究规避了金属有机框架（MOFs）异质结构薄膜中晶格失配因素的限制，实现了奇特的电子异质结构，可能用于下一代薄膜器件应用。本研究报告了一种稳健的策略，可显著增强基于 4,4′-偶氮苯二羧酸盐 (ADA) 连接体的一维铜-MOF 薄膜的导电性，同时在此过程中还创建了一个电子异质结构系统，并探讨了光激发可能如何扰乱其电传输行为。图解摘要报告了通过逐层（LbL）方法制备高度均匀和结晶的 4,4′-偶氮苯二甲酸盐（ADA）连接体基 Cu-MOF 薄膜（称为 Cu-ADA 薄膜）的过程。在 Cu-ADA 薄膜中分子掺杂 TCNQ（四氰基二甲基醌）会形成一种电子异质结构，在跨面和面内构型中分别表现出电流整流和电导增强。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Chemical Sciences CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

3.10

自引率

5.90%

发文量

107

审稿时长

1 months

期刊介绍： Journal of Chemical Sciences is a monthly journal published by the Indian Academy of Sciences. It formed part of the original Proceedings of the Indian Academy of Sciences – Part A, started by the Nobel Laureate Prof C V Raman in 1934, that was split in 1978 into three separate journals. It was renamed as Journal of Chemical Sciences in 2004. The journal publishes original research articles and rapid communications, covering all areas of chemical sciences. A significant feature of the journal is its special issues, brought out from time to time, devoted to conference symposia/proceedings in frontier areas of the subject, held not only in India but also in other countries.