Journal article
Chemical Modification of Semiconductor Surfaces for Molecular Electronics
Chemical Reviews, Vol.117(5), pp.4624-4666
Mar/2017
Abstract
Inserting molecular monolayers within metal/semiconductor interfaces provides one of the most powerful expressions of how minute chemical modifications can affect electronic devices. This topic also has direct importance for technology as it can help improve the efficiency of a variety of electronic devices such as solar cells, LEDs, sensors, and possible future bioelectronic ones. The review covers the main aspects of using chemistry to control the various aspects of interface electrostatics, such as passivation of interface states and alignment of energy levels by intrinsic molecular polarization, as well as charge rearrangement with the adjacent metal and semiconducting contacts. One of the greatest merits of molecular monolayers is their capability to form excellent thin dielectrics, yielding rich and unique current voltage characteristics for transport across metal/molecular monolayer/semiconductor interfaces. We explain the interplay between the monolayer as tunneling barrier on the one hand, and the electrostatic barrier within the semiconductor, due to its space-charge region, on the other hand, as well as how different monolayer chemistries control each of these barriers. Practical tools to experimentally identify these two barriers and distinguish between them are given, followed by a short look to the future. This review is accompanied by another one, concerning the formation of large-area molecular junctions and charge transport that is dominated solely by molecules.
Details
- Title
- Chemical Modification of Semiconductor Surfaces for Molecular Electronics
- Creators
- Ayelet Vilan (null) - 972WIS_INST___136David Cahen (null) - The Weizmann Institute of Science
- Resource Type
- Journal article; Review
- Publication Details
- Chemical Reviews, Vol.117(5), pp.4624-4666; Mar/2017
- Number of pages
- 43
- Language
- English
- DOI
- https://doi.org/10.1021/acs.chemrev.6b00746
- Grant note
- Israel Science Foundation via its centers of Excellence program; Kimmel Centre for Nanoscale Science; Rowland and Sylvia Schaefer chair in Energy Research For this review we used, in addition to data published in journals, data obtained by former M.Sc. students Nir Stein and Abd-El Razek Haj-Yahia and former Ph.D. students Drs. Rotem Har-Lavan, Omer Yaffe, and Tal Toledano. We thank Antoine Kahn (Princeton Univ.) and Leeor Kronik (Weizmann Inst.) for fruitful discussions and the Israel Science Foundation via its centers of Excellence program and the Kimmel Centre for Nanoscale Science for partial support. This research was made possible in part via the historic generosity of the Harold Perlman family. D.C. holds the Rowland and Sylvia Schaefer chair in Energy Research._ALMAME_DELIMITER_
- Record Identifier
- 993263119903596
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