Ta-doped SnO_(2)(TTO)is a suitable candidate to replace transparent conductive oxide(TCO)composed of expensive indium used for optoelectronics and silicon heterojunction solar cells fabricated below 200℃.However,TTO ...Ta-doped SnO_(2)(TTO)is a suitable candidate to replace transparent conductive oxide(TCO)composed of expensive indium used for optoelectronics and silicon heterojunction solar cells fabricated below 200℃.However,TTO films fabricated by sputtering at low temperature still demonstrate too high resistance and optical absorptance for application in industry.In this study,we investigate the influence of sputtering ambient on the optoelectrical properties of TTO films.The addition of hydrogen and oxygen to argon during sputtering leads to a large improvement in the optoelectrical properties of TTO films.The best TTO film has a low average absorptance of 1.9%and a low resistance of 3.8×10^(-3)Ω·cm with a high carrier density of 9.3×10^(19)cm^(-3)and mobility of 17.8 cm^(2)·V^(-1)·s^(-1).The micros tructural and compositional properties of TTO films were characterized using x-ray diffraction,x-ray photoelectron spectroscopy and UV-Vis spectrophotometry.A proper ratio of hydrogen to oxygen in the sputtering gas improves the crystallinity and the doping efficiency of Ta.Optical absorptance is also reduced with suppressed formation of Sn(Ⅱ)in the TTO films.Therefore,our findings exhibit remarkable potential for the industrial application of TTO as a low-cost TCO.展开更多
电商行业的快速发展对物流行业的高效性和环保性提出了更高要求。在这一过程中,新能源轻卡因其智能、绿色的特性,成为货运企业实现转型的重要工具。因此,本研究首先从经济维度出发,通过对包括甲醇在内的新能源轻卡的总拥有成本(TCO)进...电商行业的快速发展对物流行业的高效性和环保性提出了更高要求。在这一过程中,新能源轻卡因其智能、绿色的特性,成为货运企业实现转型的重要工具。因此,本研究首先从经济维度出发,通过对包括甲醇在内的新能源轻卡的总拥有成本(TCO)进行测算,评估了新能源轻卡相较于传统车型的成本效益优势。其次,通过PEST-SWOT分析框架,系统剖析了电商时代下新能源轻卡行业发展所面临的内外部环境因素。综上,本研究不仅深度探讨了新能源轻卡在电商时代下的经济可行性,并为货运企业选择新能源轻卡提供了理论依据,助力其在新能源轻卡的选择与应用上做出更加明智的决策。The rapid development of the e-commerce industry has raised higher demands for the efficiency and sustainability of logistics services. New energy light trucks, due to their intelligent and green features, have become an important tool for freight companies to achieve transformation. Therefore, this study evaluates the economy of new energy light trucks, including methanol light truck, by calculating their Total Cost of Ownership. Next, using the PEST-SWOT analysis framework, the study explores the internal and external factors that impact the development of new energy light trucks in the e-commerce era. In summary, this study comprehensively evaluates the cost-effectiveness of new energy light trucks, providing logistics companies with theoretical guidance. This helps them make more informed decisions regarding the adoption and application of new energy light trucks.展开更多
基金Project supported by the Key-Area Research and Development Program of Guangdong Province,China(Grant No.2021B0101260001)the Guangdong Basic and Applied Basic Research Foundation(Grant No.2019A1515110411)。
文摘Ta-doped SnO_(2)(TTO)is a suitable candidate to replace transparent conductive oxide(TCO)composed of expensive indium used for optoelectronics and silicon heterojunction solar cells fabricated below 200℃.However,TTO films fabricated by sputtering at low temperature still demonstrate too high resistance and optical absorptance for application in industry.In this study,we investigate the influence of sputtering ambient on the optoelectrical properties of TTO films.The addition of hydrogen and oxygen to argon during sputtering leads to a large improvement in the optoelectrical properties of TTO films.The best TTO film has a low average absorptance of 1.9%and a low resistance of 3.8×10^(-3)Ω·cm with a high carrier density of 9.3×10^(19)cm^(-3)and mobility of 17.8 cm^(2)·V^(-1)·s^(-1).The micros tructural and compositional properties of TTO films were characterized using x-ray diffraction,x-ray photoelectron spectroscopy and UV-Vis spectrophotometry.A proper ratio of hydrogen to oxygen in the sputtering gas improves the crystallinity and the doping efficiency of Ta.Optical absorptance is also reduced with suppressed formation of Sn(Ⅱ)in the TTO films.Therefore,our findings exhibit remarkable potential for the industrial application of TTO as a low-cost TCO.
文摘电商行业的快速发展对物流行业的高效性和环保性提出了更高要求。在这一过程中,新能源轻卡因其智能、绿色的特性,成为货运企业实现转型的重要工具。因此,本研究首先从经济维度出发,通过对包括甲醇在内的新能源轻卡的总拥有成本(TCO)进行测算,评估了新能源轻卡相较于传统车型的成本效益优势。其次,通过PEST-SWOT分析框架,系统剖析了电商时代下新能源轻卡行业发展所面临的内外部环境因素。综上,本研究不仅深度探讨了新能源轻卡在电商时代下的经济可行性,并为货运企业选择新能源轻卡提供了理论依据,助力其在新能源轻卡的选择与应用上做出更加明智的决策。The rapid development of the e-commerce industry has raised higher demands for the efficiency and sustainability of logistics services. New energy light trucks, due to their intelligent and green features, have become an important tool for freight companies to achieve transformation. Therefore, this study evaluates the economy of new energy light trucks, including methanol light truck, by calculating their Total Cost of Ownership. Next, using the PEST-SWOT analysis framework, the study explores the internal and external factors that impact the development of new energy light trucks in the e-commerce era. In summary, this study comprehensively evaluates the cost-effectiveness of new energy light trucks, providing logistics companies with theoretical guidance. This helps them make more informed decisions regarding the adoption and application of new energy light trucks.
