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20062010
most citedRed-emitting fluorescent Organic Light emitting Diodes with low sensitivity to self-quenching

35 citations

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cond-mat.mtrl-sci2010★ 35 cited

Red-emitting fluorescent Organic Light emitting Diodes with low sensitivity to self-quenching

Sebastien Forget, Sebastien Chenais, Denis Tondelier +4

Concentration quenching is a major impediment to efficient organic light-emitting devices. We herein report on Organic Light-Emitting Diodes (OLEDs) based on a fluorescent amorphou…

cond-mat.mtrl-sci2008★ 33 cited

Quantification of the bond-angle dispersion by Raman spectroscopy and the strain energy of amorphous silicon

P. Roura, J. Farjas, P. Roca i Cabarrocas

A thorough critical analysis of the theoretical relationships between the bond-angle dispersion in a-Si and the width of the transverse optical (TO) Raman peak is presented. It is…

cond-mat.mtrl-sci2007★ 1 cited

Fractional composition of large crystallite grains: a unique microstructural parameter to explain conduction behavior in single phase undoped microcrystalline silicon

Sanjay K. Ram, Satyendra Kumar, P. Roca i Cabarrocas

We have studied the dark conductivity of a broad microstructural range of plasma deposited single phase undoped microcrystalline silicon films in a wide temperature range (15 - 450…

cond-mat.mtrl-sci2007★ 23 cited

Normal and anti Meyer-Neldel rule in conductivity of highly crystallized undoped microcrystalline silicon films

Sanjay K. Ram, Satyendra Kumar, P. Roca i Cabarrocas

We have studied the electrical conductivity behavior of highly crystallized undoped hydrogenated microcrystalline silicon films having different microstructures. The dark conductiv…

cond-mat.mtrl-sci2007★ 16 cited

Structural Determination of Nanocrystalline Si Films Using Ellipsometry and Raman Spectroscopy

Sanjay K. Ram, Md. N. Islam, P. Roca i Cabarrocas +1

Single phase nano and micro crystalline silicon films deposited using SiF4/H2 plasma at different H2 dilution levels were studied at initial and terminal stages of film growth with…

cond-mat.mtrl-sci2007★ 13 cited

Influence of the statistical shift of Fermi level on the conductivity behavior in microcrystalline silicon

Sanjay K. Ram, Satyendra Kumar, P. Roca i Cabarrocas

The electrical conductivity behavior of highly crystallized undoped hydrogenated microcrystalline silicon films having different microstructures was studied. The dark conductivity…