Near-field surface photovoltage

R. Shikler*, Y. Rosenwaks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A phenomenon called near-field surface photovoltage is presented. It is based on inducing photovoltage only at a semiconductor space-charge region using near-field illumination. The photovoltage is obtained by measuring the contact potential difference between an optical near-field force sensor and a semiconductor surface under illumination. It is shown that the near-field illumination induces photovoltage at the surface which is principally different from photovoltage induced by far-field illumination. The mechanisms that govern the different far-field and near-field photovoltage response are discussed.

Original languageEnglish
Pages (from-to)836-838
Number of pages3
JournalApplied Physics Letters
Issue number6
StatePublished - 7 Aug 2000


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