WO9616449-A1  "Chemical Tuning of Electroluminescent Copolymers to Improve Emission Efficiencies and Allow Patterining" by P.L. Burn, A.B. Holmes, A. Kraft, D.D.C. Bradley, A.R. Brown, R.H. Friend and R.W. Gymer published in Nature Volume 356 pages 47 to 49 in 1992;  "Percolation and Localisation " of "The Physics of Structurally Disordered Matter: an Introduction" by N.E. Cusack published under the Adam Hilger imprint by IOP Publishing Ltd (ISBN 0-85274-591-5);  "Semiconducting polymer-Buckminster fullerene heterojunctions: Diodes, photodiodes and photovoltaic cells" by N S Sariciftci et al, published in Applied Physics Letters 62 (6) 08021993 at pages 585 to 587;  "The photovoltaic response in poly (p-phenylenevinylene) thin film devices" by R N Marks et al published in the Journal of Physics: Condensed Matter 6 (1994) 1379-1394;  Physics World November 1992 at pages 42 to 46 by R Friend D Bradley and A Holmes;  YANG AND HEEGER: 'A new architecture for ploymer transistors' NATURE vol. 372, November 1994, pages 344 - 346, XP000578122;  NATURE, Volume 372, November 1994, Yang and Heeger, "A new architecture for polymer transistors" page 344 - page 346;  NATURE, Volume 376, August 1995, Halls, Walsh et al, "Efficient photodiodes from interpenetrating polymer networks" page 498 - page 500;  HALLS, WALSH ET AL: 'Efficient photodiodes from interpenetrating polymer networks' NATURE vol. 376, August 1995, pages 498 - 500, XP000578123;  See also references of EP 0740855A1EP740855-A1  See also references of WO 9616449A1US5670791-A  "Chemical Tuning of Electroluminescent Copolymers to Improve Emission Efficiencies and Allow Patterning" P.L. Burn et al, Nature, vol. 356, pp. 47-49, 1992.;  "Efficient Photodiodes from Interpenetrating Polymer Networks" J.J.M. Halls et al, Nature, vol. 376, Aug., 1995, pp. 498-500.;  "Polymer Leds" R. Friend et al, Physics World, Nov. 1992, pp. 42-46.;  "Semiconducting Polymer-Buchminsterfullerene Heterojunctions: Diodes, Photodiodes, and Photovoltaic Cells" N. Sariciftci et al, Applied Physics Letters 62 (6), Feb. 1993, pp. 585-587.;  "The Photovoltaic Response in Poly(P-Phenylene Vinylene) Thin-Film Devices", R.N. Marks et al, J. Phys. Condensed Matter 6, (1994), pp. 1379-1394.;  "The Physics of Structurally Disordered Matter: An Introduction" Chapter 9, Percolation and Localisation, N.E. Cusack, Iop Publishing Ltd.1987.EP740855-B1  HALLS, WALSH ET AL: 'Efficient photodiodes from interpenetrating polymer networks' NATURE vol. 376, August 1995, pages 498 - 500, XP000578123;  YANG AND HEEGER: 'A new architecture for ploymer transistors' NATURE vol. 372, November 1994, pages 344 - 346, XP000578122