Global Barium Titanate Nanoparticles Market By Type (Injection-Hydrolysis , Peptide Assisted Precipitation , Hydrothermal/Solvothermal Synthesis , and Thermal Decomposition), By Application (Electronics , PTC Thermistor , Ceramics , Optical Devices , and Reinforcement of Composite), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029