| Autor: |
Yang WL; Geballe Laboratory for Advanced Materials, Stanford University, Stanford, CA 94305, USA., Fabbri JD, Willey TM, Lee JR, Dahl JE, Carlson RM, Schreiner PR, Fokin AA, Tkachenko BA, Fokina NA, Meevasana W, Mannella N, Tanaka K, Zhou XJ, van Buuren T, Kelly MA, Hussain Z, Melosh NA, Shen ZX |
| Jazyk: |
angličtina |
| Zdroj: |
Science (New York, N.Y.) [Science] 2007 Jun 08; Vol. 316 (5830), pp. 1460-2. |
| DOI: |
10.1126/science.1141811 |
| Abstrakt: |
We found monochromatic electron photoemission from large-area self-assembled monolayers of a functionalized diamondoid, [121]tetramantane-6-thiol. Photoelectron spectra of the diamondoid monolayers exhibited a peak at the low-kinetic energy threshold; up to 68% of all emitted electrons were emitted within this single energy peak. The intensity of the emission peak is indicative of diamondoids being negative electron affinity materials. With an energy distribution width of less than 0.5 electron volts, this source of monochromatic electrons may find application in technologies such as electron microscopy, electron beam lithography, and field-emission flat-panel displays. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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