Session P22: Focus Session: Organic Electronics: FETs II
8:00 AM–10:48 AM, Wednesday, March 12, 2008
Morial Convention Center Room: 214
Sponsoring Units:
DMP DPOLY
Chair: Michael Chabinyc, Palo Alto Research Center
Abstract ID: BAPS.2008.MAR.P22.4
Abstract: P22.00004 : Soft X-Ray Emission and Absorption study of the Electronic Structure of the Organic Semiconductor Titanyl Phthalocyanine (TiO-Pc)
9:00 AM–9:12 AM
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Abstract 
Authors:
Y. Zhang
(Boston University)
S. Wang
(Boston University)
A. DeMasi
(Boston University)
L.F.J. Piper
(Boston University)
K.E. Smith
(Boston University)
J. Downes
(Macquarie University)
A. Matsuura
(In-Q-Tel)
The electronic structure of thin films of the organic semiconductor titanyl phthalocyanine (TiO-Pc) has been investigated using synchrotron radiation-excited x-ray emission and absorption spectroscopies. The films were grown \textit{in-situ}, using organic molecular beam deposition. The C and N $K$-edge spectra display similarities with those from other metal-Pcs, while the O $K$-edge and Ti $L$-edge spectra support the premise that the titanyl species are spatially isolated. Good agreement is found between a calculation of the partial density of states and the measured spectra. The Ti $L$-edge spectra display marked differences with previous reports. Two energy-loss features are reported from resonant x-ray inelastic scattering of the Ti L-edge associated with Ti $3d$*-O $2p $and Ti $3d*$-N $2p$ charge transfer transitions. Our measurements will be discussed in the context of earlier soft x-ray studies of TiO-Pc, with particular attention paid to issues of contamination and beam damage.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2008.MAR.P22.4