In a method and device for separating components in a corona discharge zone an air stream containing water molecules is passed between at least one ionizing electrode and at least one non-ionizing electrode; and high voltage is applied to the electrodes to create a corona discharge zone consisting of a plasma region wherein ozone is formed and a dark region where predominantly hydrogen peroxide is formed. The air flow entering the corona discharge zone is divided into two separate air flows, a first of which passes through the corona discharge plasma region, and a second of which passes through the dark corona discharge region; and a negative pressure gradient is applied to the plasma region only so as to remove the ozone and thereby separate the ozone from the hydrogen peroxide.

A treatment-target modification device is configured to modify a treatment target being conveyed, with discharge. The treatment-target modification device includes: a hydrophilization unit configured to perform hydrophilization treatment on the treatment target (20; and a measurement unit configured to measure two-dimensional distribution of a reflectance spectrum of light reflected from the hydrophilization-treated treatment target.

A bonding apparatus includes a first holder, a second holder, a striker and an ionizer. The first holder is configured to attract and hold a first substrate from above. The second holder is disposed below the first holder and is configured to attract and hold a second substrate from below. The striker is configured to press a central portion of the first substrate into contact with the second substrate. The ionizer is disposed above the second holder.

Improved deposition of optoelectronically active perovskite materials is provided with a two step process. In the first step, precursors are deposited on a substrate. In the second step, the deposited precursors are exposed to an atmospheric pressure plasma which efficiently cures the precursors to provide the desired perovskite thin film. The resulting films can have excellent optical properties combined with superior mechanical properties.

A treatment-target modification device is configured to modify a treatment target being conveyed, with discharge. The treatment-target modification device includes: a hydrophilization unit configured to perform hydrophilization treatment on the treatment target (20; and a measurement unit configured to measure two-dimensional distribution of a reflectance spectrum of light reflected from the hydrophilization-treated treatment target.

A resonant converter for a corona generator. One example provides a corona generator that includes a resonant converter, a voltage multiplier, a driver circuit, a driver circuit power supply, and a controller. The voltage multiplier circuit is connected to the resonant converter is configured to amplifier a converter output voltage of the resonant converter, thereby generating a corona generator output. The driver circuit is connected to the resonant converter and is configured to provide a driver signal to the resonant converter. The driver circuit power supply is configured to provide power to the driver circuit. The controller is configured to receive voltage feedback indicative of a voltage of the corona generator output, compare the voltage feedback to a desired output voltage of the corona generator output, and transmit a command to the driver circuit power supply to adjust an amount of power provided to the driver circuit.