Polymers for opto-electronic applications: structure and morphology of thin films and their interfaces

• Published in: Synthetic metals Vol. 122; no. 1; pp. 83 - 86
• Main Authors: van Hutten, Paul F., Krasnikov, Victor V., Hadziioannou, Georges
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Lausanne Elsevier B.V 01.05.2001; Amsterdam Elsevier Science; New York, NY
• Subjects: Applied sciences; Block copolymers; Electrical, magnetic and optical properties; Electronics; Exact sciences and technology; Interfaces; Morphology; Organic polymers; Photovoltaic cells; Physicochemistry of polymers; Properties and characterization; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Ultraviolet photoelectron spectroscopy; Interfaces; Photovoltaic cells; Ultraviolet photoelectron spectroscopy; Morphology; Block copolymers; Phenylene derivative copolymer; Gold; Voltage current curve; Fullerene compounds; Use; Phenylenevinylene derivative polymer; Energy diagram; Styrene derivative copolymer; Experimental study; Oligomer; Energy level; Photovoltaic cell; Binary mixture; Conjugated polymer; Semiconductor metal contact; Diblock copolymer; Fullerenes
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/S0379-6779(00)01331-X

Organic–organic and metal–organic interfaces are explored. The influence of the morphology of thin films of MEH-phenylene-vinylene oligomer (OPV5):C60 blends on their photovoltaic characteristics is demonstrated. An interdigitating structure is considered to be favorable for efficient operation. The design of a diblock copolymer for this specific application is discussed. By means of UPS, the electronic energy levels at the interface between OPV5 and gold are assessed. Due to the formation of a dipole layer, the vacuum levels are not aligned and the barrier for charge injection is altered.