Wind energy, considered as one of the most promising clean and sustainable energy sources, has drawn more and more attraction. Here we first designed and fabricated a self-powered printer system consisting of a transparent wind-driven triboelectric nanogenerator (TENG) serving as a power supply unit and a handheld printer as an output unit. The wind-driven TENG can generate an output voltage, a short-circuit current and a power up to 130 V, 15 μA and 2 mW, respectively. An electric field is obtained by applying a rectified voltage signal which is generated from the TENG between the substrate electrode and the syringe, compelling the charged ink droplet falling down onto the printing substrate. Additionally, the handheld printer system can realize color printing as well as printing conductive circuit by scavenging mouth-blown wind energy. The self-powered printer not only realizes the transition from TENG in lab into practical applications, but also provides an innovative idea of mobile devices without an electric power supply.

风能被认为是最有前途的清洁和可持续能源之一，吸引了越来越多的关注。在这里，我们首先设计和制造了一种自供电打印机系统，该系统由透明的风力驱动摩擦纳米发电机（TENG）用作电源单元，而手持打印机作为输出单元。风力驱动的TENG可以分别产生输出电压，短路电流和高达130 V，15μA和2 mW的功率。通过在基板电极和注射器之间施加从TENG产生的整流电压信号来获得电场，从而迫使带电的墨滴掉落到打印基板上。另外，手持式打印机系统可以通过清除吹口的风能来实现彩色打印以及打印导电电路。