Abstract: The present application provides a lithium niobate having a p-type nanowire region or an n-type nanowire region and a method for preparing the same. The method includes heating and then cooling a multi-domain lithium niobate crystal to confine hydrogen ions of the multi-domain lithium niobate crystal in domain wall regions; and poling the multi-domain lithium niobate crystal that has been heated by applying a voltage, to reverse a direction of polarization of one or more domains of the multi-domain lithium niobate crystal. The lithium niobate includes a lithium niobate crystal and a p-type nanowire region or an n-type nanowire region located in the lithium niobate crystal and adjacent to a surface of the lithium niobate crystal. The present application also provides a method for converting the charge carrier type of the lithium niobate nanowire region.

Abstract: The present application provides a lithium niobate having a p-type nanowire region or an n-type nanowire region and a method for preparing the same. The method includes heating and then cooling a multi-domain lithium niobate crystal to confine hydrogen ions of the multi-domain lithium niobate crystal in domain wall regions; and poling the multi-domain lithium niobate crystal that has been heated by applying a voltage, to reverse a direction of polarization of one or more domains of the multi-domain lithium niobate crystal. The lithium niobate includes a lithium niobate crystal and a p-type nanowire region or an n-type nanowire region located in the lithium niobate crystal and adjacent to a surface of the lithium niobate crystal. The present application also provides a method for converting the charge carrier type of the lithium niobate nanowire region.

Abstract: A safety piezoelectric lighter incorporates with a safety arrangement which includes an ignition cap having a locker cavity. A locking unit includes a locking latch extended from an inner wall of the casing and a locker arm disposed in the locker cavity of the ignition cap. An operation button slidably mounted on the ignition cap for moving the locker arm to an unlocked position. A resilient element is arranged for applying an urging pressure against the locker arm so as to normally retain the locker arm in a locking position that the locker arm is biased against the locker latch so as to block up the ignition cap from being slid downward for ignition. A user must operate the operation button for moving the locker arm away from the locking latch, so that the ignition cap is capable of being slid downward to ignite the piezoelectric lighter.

Abstract: A safety piezoelectric lighter incorporates with a safety arrangement which includes an ignition cap having a locker cavity. A locking unit includes a locking latch extended from an inner wall of the casing and a locker arm disposed in the locker cavity of the ignition cap. An operation button slidably mounted on the ignition cap for moving the locker arm to an unlocked position. A resilient element is arranged for applying an urging pressure against the locker arm so as to normally retain the locker arm in a locking position that the locker arm is biased against the locker latch so as to block up the ignition cap from being slid downward for ignition. A user must operate the operation button for moving the locker arm away from the locking latch, so that the ignition cap is capable of being slid downward to ignite the piezoelectric lighter.