Researchers at Wuhan University have developed a new method for controlling the electrical properties of 2D metal-organic frameworks (MOFs), specifically porphyrinic MOF nanosheets, by creating molecular heterojunctions with adjustable rectification behaviors. By pairing MOF nanosheets made from TCPP with oligophenylene thiol (OPT) layers, the team achieved fine-tuning of rectification ratios, critical for applications like transistors and sensors. Adjusting OPT’s molecular length and the MOF’s metal ions allowed precise energy alignment at the interface, facilitating asymmetric charge transport. This breakthrough in tunable MOF-based electronics could impact diverse fields, including energy storage and molecular electronics, offering a promising pathway for future device innovation.
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