Organophosphine‐Sandwiched Copper Iodide Cluster Enables Charge Trapping
- 21 September 2021
- journal article
- research article
- Published by Wiley in Angewandte Chemie
- Vol. 60 (47), 24894-24900
- https://doi.org/10.1002/anie.202111320
Abstract
Realizing the differentiated functions of organic-inorganic hybrids is the basis of constructing single-molecule semiconductor elements as a formidable challenge. Herein, we report a feasible molecular design of the binuclear clusters featuring the n-p-n heterojunction of biligand-sandwiched inorganic units, which can be used as the effective charge trapper in ambipolar transistor memories with the large memory windows and the energy-saving operation. We find that the hole confinement on the p-type inorganic units is enhanced by spatial electronic anisotropy provided by the peripheral n-type organic phosphine ligands. The steric hindrance of the coordination sites, the insulating effect of the carbon-phosphorous single bonds and the parallel dual-ligand coordination mode jointly elongate the interunit distances to nanometer scale and restrain the intramolecular electronic communications, leading to the tunable and reliable charge trapping. Our results show that the spatial effect is crucial to further amplifying the electronic differences between organic and inorganic units for function enhancement. The combination of spatial and electronic effects will be useful in developing single-molecule semiconductor elements.Funding Information
- National Natural Science Foundation of China (92061205, 51873056, 61905070 and 22005088)
- National Postdoctoral Program for Innovative Talents (BX20180092)
- Postdoctoral Research Foundation of China (2018M6403132019)
- Natural Science Foundation of Heilongjiang Province (YQ2020B006)
This publication has 29 references indexed in Scilit:
- Unimolecular ElectronicsChemical Reviews, 2015
- Break junction under electrochemical gating: testbed for single-molecule electronicsChemical Society Reviews, 2015
- Incorporating single molecules into electrical circuits. The role of the chemical anchoring groupChemical Society Reviews, 2014
- Single-molecule electronics: from chemical design to functional devicesChemical Society Reviews, 2014
- Recent progress in metal–organic complexes for optoelectronic applicationsChemical Society Reviews, 2014
- Semiconducting π-Conjugated Systems in Field-Effect Transistors: A Material Odyssey of Organic ElectronicsChemical Reviews, 2011
- Spectroscopy of molecular junctionsChemical Society Reviews, 2011
- Efficient bulk heterojunction photovoltaic cells using small-molecular-weight organic thin filmsNature, 2003
- Organic electroluminescent diodesApplied Physics Letters, 1987
- Two-layer organic photovoltaic cellApplied Physics Letters, 1986