2005
DOI: 10.1021/jp046389k
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High-Resolution Scanning Tunneling Microscopy Images of Molecular Overlayers Prepared by a New Molecular Beam Deposition Apparatus with Spray-Jet Technique

Abstract: We developed a new molecular beam deposition apparatus using a spray-jet technique for high-quality thin film preparation of nonsublimable molecules. The apparatus was used to deposit chloro[tri-tert-butyl-subphthalocyaninato]boron(III) (TBSubPc) molecules on an Au(111) surface for analysis by low-temperature scanning tunneling microscopy (STM). Highly resolved images, in which tert-butyl groups in a TBSubPc molecule were clearly identifiable, were obtained. The image quality and the resolution of these images… Show more

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Cited by 18 publications
(32 citation statements)
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(65 reference statements)
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“…We previously developed a molecular beam apparatus with a spray-jet technique [1][2][3][4][5] that enables us to produce a molecular beam of neutral non-volatile molecules in vacuum from the sprayed mist of a sample solution. The apparatus is intended for use in spectroscopic studies or as a means of molecular deposition.…”
Section: Introductionmentioning
confidence: 99%
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“…We previously developed a molecular beam apparatus with a spray-jet technique [1][2][3][4][5] that enables us to produce a molecular beam of neutral non-volatile molecules in vacuum from the sprayed mist of a sample solution. The apparatus is intended for use in spectroscopic studies or as a means of molecular deposition.…”
Section: Introductionmentioning
confidence: 99%
“…The apparatus is intended for use in spectroscopic studies or as a means of molecular deposition. The spray-jet molecular beam apparatus for spectroscopic studies consists of (1) a sample inlet system with an ultrasonic nebulizer, an inlet chamber, and a pulsed nozzle; (2) a set of skimmers; and (3) a high-vacuum chamber equipped with a time-of-flight mass spectrometry (TOFMS) unit, in which pulsed-laser photoionization and mass detection are carried out, while the spray-jet molecular beam deposition apparatus consists of essentially the same component parts as the spray-jet molecular beam apparatus for spectroscopic studies, except that the TOFMS unit is replaced by a ultra-high-vacuum (UHV) chamber equipped with a unit for molecular beam deposition and a unit for transferring a sample plate to a low-temperature scanning tunneling microscope (LT-STM) [4]. From the viewpoint of spectroscopic analysis, the spray-jet technique provides us with different information from those of the supersonic jet technique [6,7], the matrix assisted laser desorption ionization (MALDI) technique [8,9] and the electrospray ionization (ESI) technique [10], while from the viewpoint of molecular deposition, it provides us with a new method of molecular beam deposition [4].…”
Section: Introductionmentioning
confidence: 99%
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