Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Determination of surface recombination velocities of organic monolayers on silicon through Kelvin probe
AU - Alderman, Nicholas
AU - Ibrahim, Mohd Adib
AU - Danos, Lefteris
AU - Grossel, Martin
AU - Markvart, Tom
PY - 2013
Y1 - 2013
N2 - We report the determination of the surface recombination velocity of electron-hole pairs for silicon samples passivated with organic monolayers using the Kelvin probe. The recombination velocity was determined from the surface photovoltage and incident photon flux. By scanning of the Kelvin probe tip over the sample, the change in surface recombination velocity can be measured allowing recombination lifetime mapping. Organic monolayers with different chain lengths and exhibiting various recombination lifetimes were synthesized through a two-step chlorination-alkylation technique. The estimated recombination lifetimes were compared against those obtained from an industrial standard technique and were found to be in good agreement.
AB - We report the determination of the surface recombination velocity of electron-hole pairs for silicon samples passivated with organic monolayers using the Kelvin probe. The recombination velocity was determined from the surface photovoltage and incident photon flux. By scanning of the Kelvin probe tip over the sample, the change in surface recombination velocity can be measured allowing recombination lifetime mapping. Organic monolayers with different chain lengths and exhibiting various recombination lifetimes were synthesized through a two-step chlorination-alkylation technique. The estimated recombination lifetimes were compared against those obtained from an industrial standard technique and were found to be in good agreement.
U2 - 10.1063/1.4818768
DO - 10.1063/1.4818768
M3 - Journal article
VL - 103
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 8
M1 - 081603
ER -