The disclosed technology includes systems, devices, and methods associate with producing an organic semiconductor film having electrical dopant molecules distributed to a controlled depth. In an example implementation, a semiconductor device is provided. The semiconductor device can include a first substrate and an organic semiconductor film disposed on the first substrate. The organic semiconductor film includes a first region characterized by electrical dopant molecules distributed to a controlled depth with respect to a first surface of the organic semiconductor film. The semiconductor device further can include an electrode in contact with at least a portion of the first region of the organic semiconductor film.