Abstract: The present invention relates, inter alia, to a method for influencing a charge state of a sample, comprising directing a charged particle beam onto the sample for the purpose of analyzing and/or processing the sample, wherein the particles of the particle beam are accelerated onto the sample by a first acceleration voltage and result in charging of the sample, and directing the charged particle beam onto the sample for the purpose of influencing the charging of the sample, wherein the particles of the particle beam are accelerated onto the sample by a second, changed acceleration voltage amounting to at least 15% of the first acceleration voltage.

Abstract: A method for potential determination pertaining to a sample comprises: positioning a probe above the sample; applying at least a first and a second DC voltage offset each from a first range; applying an AC voltage to the probe for the purpose of inducing a mechanical oscillation of the probe; determining a first induced deflection of the probe for the first DC voltage offset and a second induced deflection of the probe for the second DC voltage offset; and determining a potential outside an interval spanned by the first and second DC voltage offsets at least partly on the basis of the first and second deflections. A method for causing approach by a probe towards a sample comprises: causing approach by the probe towards the sample; repeatedly determining a deflection of the probe during the process of causing approach; and ascertaining an approach termination condition for avoiding sample damage at least partly on the basis of the deflection of the probe or the oscillation frequency thereof.

Abstract: Provided is a device for emitting electromagnetic radiation. The device includes a first electrode, a second electrode, and an exciton recombination layer extending from the first electrode to the second electrode. The device is configured to relocate a recombination zone in the exciton recombination layer by changing an electric field between the first electrode and the second electrode, or to emit electromagnetic radiation through a transparent substrate.

Abstract: Provided is a device for emitting electromagnetic radiation. The device includes a first electrode, a second electrode, and an exciton recombination layer extending from the first electrode to the second electrode. The device is configured to relocate a recombination zone in the exciton recombination layer by changing an electric field between the first electrode and the second electrode, or to emit electromagnetic radiation through a transparent substrate.