#TITLE_ALTERNATIVE#

• Main Author: RAHASTAMA (NIM : 10210037), SWASTYA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/20562
• Institution: Institut Teknologi Bandung

Analytical research was held for studying silicon-based betavoltaic nuclear battery with Ni-63 and Sr-90 as radiation sources. Calculations for radiation source characteristics such as beta energy spectrum, stopping range, and radiation activity has been done to determine the battery design. Monte Carlo N-Particle simulation was also used to calculate beta energy deposition rate in semiconductor. Parameters which responsible for the generated minority carrier current in semiconductor such as diffusion coefficient, surface recombination velocity, diffusion length, and width of each regions was predicted based on acceptor and donor doping level on semiconductor. The value of current and voltage of the battery was calculated using the solution of minority carrier diffusion equation by combining the result of radiation source characteristic calculations and the predicted semiconductor parameters. Finally, the simulation of betavoltaic peformance was done by creating J-V curve and power density curve to determine the maximum power output, fill factor, and efficiency. The aim of this project is to have a comparison of the design and the performance between Ni-63-filled battery and Sr-90-filled battery, so we can conclude the advantages and disadvantages of each battery. The conclusion of the research are Ni-63-filled battery wins in the endurance and the simple design, on the other hand Sr-90-filled battery wins in the cell geometry design and the produced output.