Methods, systems, and apparatuses for a reader transceiver circuit are described. Within the method, at least one of the pair of capacitor plates is formed of a doped amorphous silicon material formed incident to isotropic etching within an etchant solution comprising aqueous ammonium hydroxide, without hydrogen peroxide. The apparatus comprises a condenser arranged coaxially with and surrounded by the centrifuge chamber. Furthermore, the next state to which the state machine transitions from a current state when an LPS is observed for a plurality of states is a rounded version of a result of calculating:number of current state+log)probability of the current state)log. The precharge current is M times the data current where M is a real number greater than 1. Methods include manufacturing a photovoltaic cell using nanoimprint technology to define individual cell units of the photovoltaic device.