Nanostructured Boron-Doped Ultra-Nanocrystalline Diamond Micro-Pyramids: Efficient Electrochemical Supercapacitors.

ABSTRACT: The miniaturization of electrochemical supercapacitors (EC-SCs) requires electrode materials that are both durable and efficient. Boron-doped diamond (BDD) films are an ideal choice for EC-SC due to their durability and exceptional electrochemical performance. In this study, nanostructured boron-doped ultra-nanocrystalline diamonds (NBUNCD) are fabricated on Si micro-pyramids (Si_P) using a simple reactive ion etching (RIE) process. During the etching process, the high aspect ratio and the induction of sp² graphite in these nanorod electrodes achieved a maximum specific capacitance of 53.7 mF cm^-2 at a current density of 2.54 mA cm^-2, with a 95.5% retention after 5000 cycles. Additionally, the energy density reached 54.06 µW h cm^-2 at a

SUBMITTER: Suman S 

PROVIDER: S-EPMC11753494 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature