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    • 122. 发明申请
    • Solar Thermoelectric Conversion
    • 太阳能热电转换
    • US20090260667A1
    • 2009-10-22
    • US12431052
    • 2009-04-28
    • Gang ChenXiaoyuan ChenMildred DresselhausZhifeng Ren
    • Gang ChenXiaoyuan ChenMildred DresselhausZhifeng Ren
    • H01L35/34H01L35/00
    • H01L35/00F24S21/00F24S23/30F24S23/70H01L35/30Y02E10/40
    • Systems and methods utilizing solar-electrical generators are discussed. Solar-electrical generators are disclosed having a radiation-capture structure and one or more thermoelectric converters. Heat produced in a capture structure via impingement of solar radiation can maintain a portion of a thermoelectric converter at a high temperature, while the use of a low temperature at another portion allows electricity generation. Thus, unlike photovoltaic cells which are generally primarily concerned with optical radiation management, solar thermoelectrics converters are generally concerned with a variety of mechanisms for heat management. Generators can include any number of features including selective radiation surfaces, low emissivity surfaces, flat panel configurations, evacuated environments, and other concepts that can act to provide thermal concentration. Designs utilizing one or more optical concentrators are also disclosed.
    • 讨论了利用太阳能发电机的系统和方法。 公开了具有辐射捕获结构和一个或多个热电转换器的太阳能发电机。 通过太阳辐射的冲击在捕获结构中产生的热可以将热电转换器的一部分保持在高温,而在另一部分使用低温允许发电。 因此,与通常主要涉及光辐射管理的光伏电池不同,太阳能热电转换器通常涉及各种用于热管理的机构。 发电机可以包括任何数量的功能,包括选择性辐射表面,低辐射面,平板配置,抽真空环境以及其他可用于提供热集中的概念。 还公开了利用一个或多个聚光器的设计。
    • 123. 发明授权
    • Thermoelectric properties by high temperature annealing
    • 高温退火的热电性能
    • US07591913B2
    • 2009-09-22
    • US11100950
    • 2005-04-06
    • Zhifeng RenGang ChenShankar KumarHohyun Lee
    • Zhifeng RenGang ChenShankar KumarHohyun Lee
    • C22C1/00H01L21/00
    • H01L35/22C22C1/005C22C11/00C22C12/00C22C28/00C22F1/00H01L35/16
    • The present invention generally provides methods of improving thermoelectric properties of alloys by subjecting them to one or more high temperature annealing steps, performed at temperatures at which the alloys exhibit a mixed solid/liquid phase, followed by cooling steps. For example, in one aspect, such a method of the invention can include subjecting an alloy sample to a temperature that is sufficiently elevated to cause partial melting of at least some of the grains. The sample can then be cooled so as to solidify the melted grain portions such that each solidified grain portion exhibits an average chemical composition, characterized by a relative concentration of elements forming the alloy, that is different than that of the remainder of the grain.
    • 本发明通常提供了通过使合金呈现出一种或多种高温退火步骤来提高合金的热电性能的方法,所述高温退火步骤在合金呈现混合的固相/液相的温度下进行,然后进行冷却步骤。 例如,在一个方面,本发明的这种方法可以包括使合金样品经受足够升高的温度以引起至少一些晶粒的部分熔融。 然后可以将样品冷却以固化熔融的颗粒部分,使得每个固化的颗粒部分显示平均化学组成,其特征在于形成合金的元素的相对浓度,其不同于其余颗粒的元素的相对浓度。