Alam Md Mehebub, Mandal Dipankar
Organic Nano-Piezoelectric Device Laboratory, Department of Physics, Jadavpur University , Kolkata 700032, India.
ACS Appl Mater Interfaces. 2016 Jan 27;8(3):1555-8. doi: 10.1021/acsami.5b08168. Epub 2016 Jan 13.
A flexible hybrid piezoelectric generator (HPG) based on native cellulose microfiber (NCMF) and polydimethylsiloxane (PDMS) with multi wall carbon nanotubes (MWCNTs) as conducting filler is presented where the further chemical treatment of the cellulose and traditional electrical poling steps for piezoelectric voltage generation is avoided. It delivers a high electrical throughput that is an open circuit voltage of ∼30 V and power density ∼9.0 μW/cm(3) under repeated hand punching. We demonstrate to power up various portable electronic units by HPG. Because cellulose is a biocompatible material, suggesting that HPG may have greater potential in biomedical applications such as implantable power source in human body.
本文介绍了一种基于天然纤维素微纤维（NCMF）和聚二甲基硅氧烷（PDMS），并以多壁碳纳米管（MWCNT）作为导电填料的柔性混合压电发电机（HPG），该发电机避免了纤维素的进一步化学处理和传统的用于产生压电电压的电极化步骤。在反复手动冲压下，它能提供高电通量，即开路电压约为30V，功率密度约为9.0μW/cm³。我们展示了利用该HPG为各种便携式电子设备供电。由于纤维素是一种生物相容性材料，这表明HPG在生物医学应用中可能具有更大的潜力，例如作为人体植入式电源。
