TY - JOUR
T1 - Patterning of α-sexithiophene single crystals with precisely controlled sizes and shapes
AU - Liu, Shuhong
AU - Mannsfeld, Stefan C.B.
AU - Wang, Wechung Maria
AU - Sun, Ya Sen
AU - Stoltenberg, Randall M.
AU - Bao, Zhenan
PY - 2009/1/13
Y1 - 2009/1/13
N2 - SiO 2 surface with patterned Au films was demonstrated to act as an effective template for an organic semiconductor α-6T used in field-effect transistors (FET) applications. The results show that on Au, α-6T forms three-dimensional crystals of smaller size, while on SiO 2, flat and large two-dimensional crystals are formed. It is also observed that continuous Au films and 3-D crystals on top of the Au films are selectively removed, leaving behind patterned 2-D crystals on the substrate. Patterned α-6T crystals with square, rectangular, and star shapes can also be grown with yield higher than 80%. Atomic force microscopy (AFM) studies show that the obtained crystals are composed of various layers, with the thicknesses of each layer being 2.3 nm, corresponding to a single layer of α-6T molecules.
AB - SiO 2 surface with patterned Au films was demonstrated to act as an effective template for an organic semiconductor α-6T used in field-effect transistors (FET) applications. The results show that on Au, α-6T forms three-dimensional crystals of smaller size, while on SiO 2, flat and large two-dimensional crystals are formed. It is also observed that continuous Au films and 3-D crystals on top of the Au films are selectively removed, leaving behind patterned 2-D crystals on the substrate. Patterned α-6T crystals with square, rectangular, and star shapes can also be grown with yield higher than 80%. Atomic force microscopy (AFM) studies show that the obtained crystals are composed of various layers, with the thicknesses of each layer being 2.3 nm, corresponding to a single layer of α-6T molecules.
UR - http://www.scopus.com/inward/record.url?scp=61849174679&partnerID=8YFLogxK
U2 - 10.1021/cm802806t
DO - 10.1021/cm802806t
M3 - 期刊論文
AN - SCOPUS:61849174679
SN - 0897-4756
VL - 21
SP - 15
EP - 17
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 1
ER -