21 citations · 60 across the 6 of their papers we have counts for
6 papers
Imaging of bandtail states in silicon heterojunction solar cells
M. Y. Teferi, H. Malissa, A. B. Morales-Vilches +6
Silicon heterojunction (SHJ) solar cells represent a promising technological approach towards higher photovoltaics efficiencies and lower fabrication cost. While the device physics…
Spin-Dependent Charge-Carrier Recombination Processes in Tris(8-Hydroxyquinolinato) Aluminum
H. Popli, X. Liu, T. H. Tennahewa +5
We have studied the nature and dynamics of spin-dependent charge carrier recombination in Tris(8-hydroxyquinolinato) aluminum (Alq) films in light emitting diodes at room tempe…
Perdeuteration of poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] (d-MEHPPV): control of microscopic charge-carrier spin-spin coupling and of magnetic-field effects in optoelectronic devices
Dani M. Stoltzfus, Gajadhar Joshi, Henna Popli +14
Control of the effective local hyperfine fields in a conjugated polymer, poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] (MEHPPV), by isotopic engineering is reported. T…
Electric-field quenching of optically detected magnetic resonance in a -conjugated polymer
D. L. Baird, A. Nahlawi, K. Crossley +8
Electric fields are central to the operation of optoelectronic devices based on conjugated polymers since they drive the recombination of electrons and holes to excitons in organic…
High-Field Magnetoresistance of Organic Semiconductors
G. Joshi, M. Y. Teferi, S. Jamali +7
The magneto-electronic field effects in organic semiconductors at high magnetic fields are described by field-dependent mixing between singlet and triplet states of weakly bound ch…
Tuning effective hyperfine fields in PEDOT:PSS thin films by doping
M. Y. Teferi, J. Ogle, G. Joshi +6
Using electrically detected magnetic resonance spectroscopy, we demonstrate that doping the conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS)…