Thickness-driven orthorhombic to triclinic phase transformation in pentacene thin films

被引：132

作者：

Drummy, LF

Martin, DC

机构：

[1] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

[2] Univ Michigan, Dept Macromol Sci & Engn, Ann Arbor, MI 48109 USA

[3] Univ Michigan, Dept Biomed Engn, Ann Arbor, MI 48109 USA

[4] USAF, Res Labs, Wright Patterson AFB, OH 45433 USA

来源：

ADVANCED MATERIALS | 2005年 / 17卷 / 07期

关键词：

D O I：

10.1002/adma.200400189

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pentacene films are thermally evaporated onto amorphous carbon-coated mica substrates held at room temperature. The crystal structure and morphology of the films are analyzed using electron microscopy and diffraction, and a new orthorhombic structure is characterized for films below a critical thickness (see Figure). Evidence that the orthorhombic structure is thermodynamically stable at low film thickness due to its low (001) surface energy is obtained.

引用

页码：903 / +

页数：6

共 24 条

[1] Morphology identification of the thin film phases of vacuum evaporated pentacene on SIO2 substrates
Bouchoms, IPM
Schoonveld, WA
Vrijmoeth, J
Klapwijk, TM
[J]. SYNTHETIC METALS, 1999, 104 (03) : 175 - 178
[2] Dimitrakopoulos CD, 2002, ADV MATER, V14, P99, DOI 10.1002/1521-4095(20020116)14:2<99::AID-ADMA99>3.0.CO
[3] 2-9
[4] Molecular beam deposited thin films of pentacene for organic field effect transistor applications
Dimitrakopoulos, CD
Brown, AR
Pomp, A
[J]. JOURNAL OF APPLIED PHYSICS, 1996, 80 (04) : 2501 - 2508
[5] Low-voltage electron microscopy of polymer and organic molecular thin films
Drummy, LF
Yang, JY
Martin, DC
[J]. ULTRAMICROSCOPY, 2004, 99 (04) : 247 - 256
[6] Drummy LF, 2002, ADV MATER, V14, P54, DOI 10.1002/1521-4095(20020104)14:1<54::AID-ADMA54>3.0.CO
[7] 2-I
[8] Structural characterization of a pentacene monolayer on an amorphous SiO2 substrate with grazing incidence X-ray diffraction
Fritz, SE
Martin, SM
Frisbie, CD
Ward, MD
Toney, MF
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (13) : 4084 - 4085
[9] Pentacene organic thin-film transistors - Molecular ordering and mobility
Gundlach, DJ
Lin, YY
Jackson, TN
Nelson, SF
Schlom, DG
[J]. IEEE ELECTRON DEVICE LETTERS, 1997, 18 (03) : 87 - 89
[10] Growth dynamics of pentacene thin films
Heringdorf, FJMZ
Reuter, MC
Tromp, RM
[J]. NATURE, 2001, 412 (6846) : 517 - 520

← 1 2 3 →