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孙宝全教授课题组在Angewandte Chemie International Edition上发表文章

发布时间:2021-05-27访问量:10设置

题目:

Constant Electricity Generation in Nanostructured Silicon by Evaporation-Driven Water Flow

作者:

Yuanshuai Qin+, Yusheng Wang+, Xiaoyue Sun, Yajuan Li, Hao Xu, Yeshu Tan, Ya Li, Tao Song, and Baoquan Sun*

单位:

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren’ai Road, Suzhou 215123,  People’s Republic of China

摘要:

Recently, hydrovoltaic technology emerged as a novel renewable energy harvesting method, which dramatically extends the capability to harvest water energy. However, the urgent issue restricting its device performance is poor carrier transport properties of the solid surface if large charged interface is considered simultaneously. Herein, a hydrovoltaic device based on silicon nanowire arrays (SiNWs), which provide large charged surface/volume ratio and excellent carrier transport properties, yields sustained electricity by a carrier concentration gradient induced by evaporation-induced water flow  inside nanochannels. The device can yield direct current with a short-circuit current density of over 55 μA cm-2, which is three orders larger than a previously reported analogous device (approximately 40 nA cm-2). Moreover, it exhibits a constant output power density of over 6 μW cm-2 and an open-circuit voltage of up to 400 mV. Our finding may pave a way for developing energy-harvesting devices from ubiquitous evaporation-driven internal water flow in nature with semiconductor material of silicon.

影响因子:

12.257

分区情况:

一区

链接:



责任编辑:向丹婷

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