Jump to main content
Jump to site search

Issue 34, 2018
Previous Article Next Article

A comparative study on a flexible ZnO-based nano-generator using Schottky and p–n junction contact for energy harvesting applications

Author affiliations

Abstract

Vibration based piezoelectric energy harvesting from unused ambient sources is an efficient approach for a battery-free, sustainable and green power source for self-powered electronics. This paper presents the performance enhancement of a p–n junction based flexible nano-generator (NG). A stable, non-hazardous spiro and zinc oxide (ZnO) p–n junction based NG is proposed. The device performance is compared with a Schottky contact based NG. The experimental study is carried out using the tip excitation method. Most importantly, the contact modification with spiro improves the performance of the device by five times, thereby yielding an open circuit voltage of 300 mV, a short-circuit current density of 220 μA cm−2 and a maximum power density up to 48 μW cm−2 at 0.5 N. Furthermore, performance enhancement is achieved by reducing the external screening and the internal impedance. The results are validated using an RC time constant value derived from the impedance analysis.

Graphical abstract: A comparative study on a flexible ZnO-based nano-generator using Schottky and p–n junction contact for energy harvesting applications

Back to tab navigation

Publication details

The article was received on 09 Apr 2018, accepted on 18 Jul 2018 and first published on 19 Jul 2018


Article type: Paper
DOI: 10.1039/C8NR02844C
Citation: Nanoscale, 2018,10, 16022-16029
  •   Request permissions

    A comparative study on a flexible ZnO-based nano-generator using Schottky and p–n junction contact for energy harvesting applications

    K. Savarimuthu, R. Sankararajan, R. Govindaraj and S. Narendhiran, Nanoscale, 2018, 10, 16022
    DOI: 10.1039/C8NR02844C

Search articles by author

Spotlight

Advertisements