A light-enhanced vibrational energy harvesting device and array

Abstract

The invention discloses a light-enhanced vibration energy collection device and an array. The light-enhanced vibration energy collection device includes a thin film transistor and a piezoelectric unit, and the piezoelectric unit serves as the top gate of the thin film transistor and the top touch. The piezoelectric film is a transparent piezoelectric film, the electrodes arranged on the top and bottom of the piezoelectric film are all transparent conductive materials, and the thin film transistor is a photosensitive thin film transistor. Compared with the prior art, the light-enhanced vibration energy harvesting device of the present invention uses a piezoelectric unit to collect energy, a thin film transistor rectifies, and converts pressure into direct current output, realizing the integration of energy harvesting and rectification. The use of a photosensitive thin film transistor enables the device to have a light enhancement effect, that is, the output current increases under the action of light, and the energy collection efficiency of the device is improved.

Description

technical field [0001] The invention relates to the field of energy collection, in particular to a light-enhanced vibration energy collection device and array. Background technique [0002] The emergence of wearable electronics will completely change the way of life of human beings. However, the power supply problem is the main bottleneck restricting its development and wide application. Batteries are currently the main power supply for wearable electronics. Batteries have a limited life and need to be replaced or recharged periodically, which is not only costly, but also extremely inconvenient. While people are actively developing various "throttling" technologies such as low-power (microwatt or even nanowatt) integrated circuits, there is also an urgent need to find various "open source" ways (such as harvesting energy from the environment) to get rid of the need for power consumption. battery dependency. [0003] Photovoltaic power generation, thermoelectric power gen...

AI Technical Summary

Problems solved by technology

These technologies have their own advantages and disadvantages. For example, photovoltaic technology is relatively mature and has relatively high energy density, but it has time-varying and space limitations.

Although the structure of thermoelectric power generation is simple and durable, it is not easy to miniaturize and integrate

The energy transmitted by means of electromagnetic waves emitted by radio frequency transmitters is generally low in density and the transmission distance is very limited

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