Controlled doping of phthalocyanine layers by cosublimation with acceptor molecules: A systematic Seebeck and conductivity study

Applied Physics Letters

Volumn 73, Issue 22, 1998, Pages 3202-3204

  Pfeiffer, M ^a   Beyer, A ^a   Fritz, T ^a   Leo, K ^a  

^a DRESDEN UNIVERSITY OF TECHNOLOGY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVATION ENERGY; ATOMS; FERMI LEVEL; GRAIN BOUNDARIES; MOLECULES; SEEBECK EFFECT; THERMOCOUPLES;

ACCEPTOR MOLECULES; COSUBLIMATION; PHTHALOCYANINE LAYERS;

SEMICONDUCTOR DOPING;

EID: 0032583014     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.122718     Document Type: Article

References (20)

1. C. W. Tang and S. A. VanSlyke, Appl. Phys. Lett. 51, 913 (1987).
2. H. Tang, F. Li, and J. Shinar, Appl. Phys. Lett. 71, 2560 (1997).
3. C. W. Tang, Appl. Phys. Lett. 48, 183 (1986).
4. D. Wöhrle, L. Kreienhoop, G. Schnurpfeil, J. Elbe, B. Tennigkeit, S. Hiller, and D. Schlettwein, J. Mater. Chem. 5, 1819 (1995).
5. D. R. Kearns, G. Tollin, and M. Calvin, J. Chem. Phys. 33, 1020 (1960).
6. M. Maitrot, G. Guillard, B. Boudjema, J. J. Andre, and J. Simon, J. Appl. Phys. 60, 2396 (1986).
7. N. El-Khatib, B. Boudjema, G. Guillaud, and M. Maitrot, J. Less-Common Met. 143, 101 (1988).
8. B. Boudjema, N. El-Khatib, M. Gamoudi, G. Guillaud, and M. Maitrot, Rev. Phys. Appl. 23, 1127 (1988).
9. J. Danziger, J.-P. Dodelet, P. Lee, K. W. Nebesny, and N. R. Armstrong, Chem. Mater. 3, 821 (1991).
10. T. L. Anderson, G. C. Komplin, and W. J. Pietro, J. Phys. Chem. 97, 6577 (1993).
11. H. Meier, Organic Semiconductors (VCH, Weinheim, 1974).
12. J. P. Meyer, D. Schlettwein, D. Wöhrle, and N. Jaeger, Thin Solid Films 258, 317 (1995).
13. W. Böhm, T. Fritz, and K. Leo, Phys. Status Solidi A 160, 81 (1997).
14. H. Fritzsche, Solid State Commun. 9, 1813 (1971).
15. μ is independent of the doping ratio.
16. The density of molecules was calculated from the crystal structure given in C. H. Griffiths, M. S. Walker, and P. Goldstein, Mol. Cryst. Liq. Cryst. 33, 149 (1976).
17. A. J. Ikushima, T. Kanno, S. Yoshida, and A. Maeda, Thin Solid Films 273, 35 (1996).
18. J. Simon and J. J. André, Molecular Semiconductors (Springer, Berlin, 1985).
19. We used the semiempirical method PM3 as implemented in HYPERCHEM™ 5.1 of HyperCube, Inc. The electron affinities were calculated as difference of the total energies of the neutral and the single negatively charged molecules within the self-consistent field approximation, using the Unrestricted Hartree-Fock scheme.
20. J. Blochwitz, M. Pfeiffer, T. Fritz, and K. Leo, Appl. Phys. Lett. 73, 729 (1998).