The thermoelectric materials research community consists mainly of numerous groups in universities and institutes in North America, Europe, the former Soviet Union, China and Japan. In addition, a handful of companies, including II-VI Marlow, contribute to the advancement of thermoelectric materials.Continue reading →
In electronics, everyone has seen the beneficial impact of miniaturization. Exponential increases in computing power and ever-decreasing package sizes are evident in the evolution of cell phones, MP3 players, laptops and a whole host of other electronic devices. Historical trends have followed Moore's Law, which predicts that the number of transistors on integrated circuits doubles every 18 months. Feature sizes on current computer chips are now measured on the nanometer scale. Can thermoelectrics benefit from this type of scaling? “Smaller” and “more powerful” are generally positive attributes, but what are the implications unique to thermoelectrics when it comes to miniaturization and scaling?Continue reading →
The vast majority of government-sponsored research in the field of thermoelectrics over the past 10-15 years has been in the area of thermoelectric power generation. The driving force behind most of this research seeks ways to improve our utilization of energy. Consider that less than a fourth of the energy content in the gasoline in your car actually goes into useful work to move the vehicle. The majority of the energy escapes as heat loss to the ambient primarily through the vehicle exhaust and radiator. Likewise, the U.S. manufacturing industry discharges roughly one-third of the energy consumed as thermal losses to the atmosphere or to cooling systems. This heat loss is measured in Quads (1015 BTU) and represents a huge opportunity for thermoelectrics to someday impact national energy consumption and our dependence on foreign fuel.Continue reading →
With over 40 issued patents and 15 published authors on staff, II-VI Marlow offers a strategic advantage to the customer in selecting the appropriate thermal solution to match your application requirements.Continue reading →
II-VI Marlow has extensive experience providing space-qualified applications to numerous U.S., Canadian and European customers. The engineering staff can design one- to six-stage thermoelectric coolers for operating environments ranging from 85°C to -110°C to perform in high-vibration and mechanical shock environments. We have provided thermoelectric coolers for:Continue reading →
For customers who require RoHS-compliant components or systems, II-VI Marlow has a complete line of products compliant to 2011/65/EC and other directives. II-VI Marlow has eliminated or actively controls the levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE) in all of its products (www.rohsguide.com).Continue reading →
II-VI Marlow is an experienced, high-volume manufacturer of systems with a well-established, low-cost supply chain and optimized solutions. These solutions combine all the aspects of thermoelectric systems to provide a balanced design to meet performance at the desired tradeoffs. Efficiency, acoustical noise, power budget, desired life and cost are all balanced for specific applications to tune a system to the customer’s needs. This balance is achieved by II-VI Marlow’s expertise in the following areas:Continue reading →
II-VI Marlow follows a customer-centric business model for its operations. Central to our corporate culture and values is the motto: “customer first.” By this commitment, Marlow seeks to maintain a customer focus, provide reliability to customers, understand their current and future needs and strive to meet/exceed their expectations.Continue reading →
With II-VI Marlows’ foundation as a thermoelectric supplier to the aerospace and defense markets, quality and reliability are built into all products and processes as the defining element of the company’s success.Continue reading →
The II-VI Marlow team is well equipped to support your design efforts with a multitude of skills and services. Research and development is a very significant part of our company. We strive to develop products that give real value to our customers. We also continue to incorporate new technological solutions developed by our scientists and engineers that yield significant improvements in overall thermoelectric performance.Continue reading →
II-VI Marlows’ ability to provide both low-cost standard products and cost-efficient, customized products remains our industry advantage. As the leading supplier of custom thermoelectric coolers (TECs), Marlow has a concept-to-completion approach to design. This approach enables II-VI Marlow to span a variety of markets and applications, offering world-class support to the customer and capturing the optimum design to match their requirements.
Why is a custom, optimized design important?
According to basic theory, TEC coefficient of performance (COP) is a strong function of ∆T across the elements. In a real-world situation, with thermal resistances due to interfaces and heat exchangers, ∆T across the elements is a function of COP. Therefore, there is a compounding effect and a severe penalty for failure to optimize at the system level. II-VI Marlow's optimization process specifically addresses minimizing TEC power consumption by system-level analysis.