Photo-induced electron transfer processes in doped conjugated polymer films (Presentation Recording)

Garry Rumbles; Obadiah G. Reid; Jaehong Park; Jessica Ramirez; Hilary Marsh; Tyler T. Clikeman

doi:10.1117/12.2187688

5 October 2015 Photo-induced electron transfer processes in doped conjugated polymer films (Presentation Recording)

Garry Rumbles, Obadiah G. Reid, Jaehong Park, Jessica Ramirez, Hilary Marsh, Tyler T. Clikeman

Proceedings Volume 9549, Physical Chemistry of Interfaces and Nanomaterials XIV; 95490I (2015) https://doi.org/10.1117/12.2187688
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

With increasing knowledge of the role of the different phases in the bulk heterojunction organic solar cell, the primary site for charge generation is now considered to be the mixed phase, and not the clean interface between neat polymer and neat fullerene. To gain a better understanding of the primary charge generating and recombination steps in this region of the system, we focus our studies on the role of the solid-state microstructure of neat polymers and light-doping of these polymers with a variety of electron-accepting dopants at low concentration. This presentation will describe some recent work on the doping of polythiophene and polyfluorene derivatives with fullerenes, phthalocyanines and perylenes, which provide a range of reduction potentials that serve to control the driving force for electron transfer processes. Results from flash photolysis, time-resolved microwave conductivity (fp-TRMC), femtosecond transient absorption spectroscopy (fTA) and photoluminescence spectroscopy will be presented.

Conference Presentation

Citation Download Citation

Garry Rumbles, Obadiah G. Reid, Jaehong Park, Jessica Ramirez, Hilary Marsh, and Tyler T. Clikeman "Photo-induced electron transfer processes in doped conjugated polymer films (Presentation Recording)", Proc. SPIE 9549, Physical Chemistry of Interfaces and Nanomaterials XIV, 95490I (5 October 2015); https://doi.org/10.1117/12.2187688

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KEYWORDS

Polymers

Polymer thin films

Fullerenes

Interfaces

Doping

Heterojunctions

Organic photovoltaics

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