Kelvin probe force microscopy of alkali chloride thin films on Au(111)

被引：60

作者：

Loppacher, C ^{[1
]}

Zerweck, U ^{[1
]}

Eng, LM ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Appl Photophys, D-01062 Dresden, Germany

来源：

NANOTECHNOLOGY | 2004年 / 15卷 / 02期

关键词：

D O I：

10.1088/0957-4484/15/2/003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Alkali chloride thin films on Au(111) are investigated under ultrahigh vacuum conditions at room temperature by noncontact atomic force microscopy in combination with Kelvin probe force microscopy. Sample preparation is carried out in situ and optimized in order to achieve a sub-monolayer coverage showing extended alkali chloride island formation. The local surface potential for LiCl, NaC1, KCl and RbCl thin films on Au(111) was directly determined and compared to values of the bare Au(111) substrate. Hence, the absolute change in the local work function DeltaPhi was evaluated. We observe a linear dependence between DeltaPhi and the ionic radius of the mentioned alkali chloride thin films.

引用

页码：S9 / S13

页数：5

共 25 条

[1] Ultrathin films of NaCl on Cu(111):: a LEED and dynamic force microscopy study [J].

Bennewitz, R ;

Barwich, V ;

Bammerlin, M ;

Loppacher, C ;

Guggisberg, R ;

Baratoff, A ;

Meyer, E ;

Güntherodt, HJ .

SURFACE SCIENCE, 1999, 438 (1-3) :289-296

[2] Atomically resolved edges and kinks of NaCl islands on Cu(111):: Experiment and theory [J].

Bennewitz, R ;

Foster, AS ;

Kantorovich, LN ;

Bammerlin, M ;

Loppacher, C ;

Schär, S ;

Guggisberg, M ;

Meyer, E ;

Shluger, AL .

PHYSICAL REVIEW B, 2000, 62 (03) :2074-2084

[3] Effect of LiF/metal electrodes on the performance of plastic solar cells [J].

Brabec, CJ ;

Shaheen, SE ;

Winder, C ;

Sariciftci, NS ;

Denk, P .

APPLIED PHYSICS LETTERS, 2002, 80 (07) :1288-1290

[4] Electronic line-up in light-emitting diodes with alkali-halide/metal cathodes [J].

Brown, TM ;

Friend, RH ;

Millard, IS ;

Lacey, DJ ;

Butler, T ;

Burroughes, JH ;

Cacialli, F .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :6159-6172

[5] Effects of Al, Ag, and Ca on luminescence of organic materials [J].

Choong, VE ;

Park, Y ;

Gao, Y ;

Wehrmeister, T ;

Mullen, K ;

Hsieh, BR ;

Tang, CW .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1997, 15 (03) :1745-1749

[6] Initial growth of insulating overlayers of NaCl on Ge(100) observed by scanning tunneling microscopy with atomic resolution [J].

Glocker, K ;

Sokolowski, M ;

Soukopp, A ;

Umbach, E .

PHYSICAL REVIEW B, 1996, 54 (11) :7705-7708

[7] An experimental study of poly(9,9-dioctyl-fluorene) and its interfaces with Li, Al, and LiF [J].

Greczynski, G ;

Fahlman, M ;

Salaneck, WR .

JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (06) :2407-2412

[8] Separation of interactions by noncontact force microscopy [J].

Guggisberg, M ;

Bammerlin, M ;

Loppacher, C ;

Pfeiffer, O ;

Abdurixit, A ;

Barwich, V ;

Bennewitz, R ;

Baratoff, A ;

Meyer, E ;

Güntherodt, HJ .

PHYSICAL REVIEW B, 2000, 61 (16) :11151-11155

[9] Bulk terminated NaCl(111) on aluminum: A polar surface of an ionic crystal? [J].

Hebenstreit, W ;

Schmid, M ;

Redinger, J ;

Podloucky, R ;

Varga, P .

PHYSICAL REVIEW LETTERS, 2000, 85 (25) :5376-5379

[10] A low temperature ultrahigh vaccum scanning force microscope [J].

Hug, HJ ;

Stiefel, B ;

van Schendel, PJA ;

Moser, A ;

Martin, S ;

Güntherodt, HJ .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (09) :3625-3640

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