Yayınlanmış 1 Ocak 2017
| Sürüm v1
Dergi makalesi
Açık
Morphology-dependent exciton diffusion length in PPE-PPVs thin films as revealed by a Forster mechanism based-study
Oluşturanlar
- 1. Univ Tunis El Manar, Fac Sci Tunis, Lab Mat Avances & Phenomenes Quant, 2092 Campus Univ, Tunis, Tunisia
- 2. Sci & Technol Res Council Turkey TUBITAK, Marmara Res Ctr MAM, Mat Inst, PK-54, TR-41470 Gebze, Kocaeli, Turkey
Açıklama
The effect of thickness and alkoxy side chains on the optical properties of poly(p-phenyleneethynylene)alt-poly(p-phenylenevinylene)s (PPE-PPVs) have been investigated in parallel fashion. A Forster energy transfer mechanism has been invoked in order to infer the exciton diffusion length (L-D). The latter parameter has been determined for six differently alkoxy-substituted PPE-PPVs for different thicknesses. The dependence of L-D upon the donor-acceptor (D-A) distance (d) has been assessed as well. The results reveal an increase of L-D up to 25 nm, with the increase of the sample thickness and side chain length. (C) 2017 Elsevier B.V. All rights reserved.
Dosyalar
bib-a49096a1-8f39-446e-8b67-b4884fb04a4a.txt
Dosyalar
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