The basic concept is that the photogenerated charge carriers in the excited semiconductor can be transferred to the second semiconductor if this is thermodynamically feasible.
基本 观念是 photogenerated 要价运送者进入兴奋半导体能被转移到那秒半导体如果这热力学地能实行的。
Currently, detectors generally are based on a reversed-biased junction comprising a narrow band gap semiconductor that separates and detects the photogenerated charge created by an absorbed IR photon.
单片式铁电薄膜红外焦平面列阵探测器是非致冷IR-FPA家族的重要一员。
It is shown that these nanocomposites can have enhanced photocatalytic activity via effective charge separation of photogenerated electrons and holes in TiO2 under visible-light irradiation.
这显示了Ti02纳米结构内在的光催化活性的加强是因为半导体在可见光下产生的光生电子和空穴有效分离。
The existing bottlenecks of polymer semiconductor photocatalysts are small visible-light absorption due to wide bandgap, limited photocatalytic activity due to low mobility of photogenerated charge carriers, poor oxidative stability due to high HOMO energy level.
聚合物半导体光催化材料的瓶颈问题是宽带隙造成对可见光吸收性能不佳，光生载流子迁移率低导致光催化活性不高，以及HOMO能级较高引起材料易被氧化，稳定性较差。
Therefore, improvement of ZnO photocatalytic activity is important to decrease the recombination of photogenerated charge carriers.
因此，要提高ZnO的光催化活性，就应减少光生电子与空穴的复合。
In case of the smaller grating constant, the photogenerated charges tend to more easily move to the dark zones by diffusion and drift, and are trapped by defects so that a spaced-charge field can be established within the faster response time.
实验发现，在光栅常数较小时，光致电荷在扩散和漂移机制作用下能够很快移动到暗区形成空间电荷场，相位光栅响应较快；
The competition between the transferring and the recombination process of photogenerated charge carriers is thereby an important factor to determine the photocatalytic performance of semiconductor.
在这个过程中光生载流子间的复合始终不可避免，这将会导致光催化效率降低。因此，光生载流子的复合与转移之间的竞争无疑是决定半导体的光催化行为最为重要的因素之一。
The decay process of photogenerated charge carriers of ZnS: Mn, Cu: I, Br luminescence materials after excitation with short pulse laser was investigated by using microwave absorption dielectric spectrum detection technique in this paper.
本文采用微波吸收法，测量了ZnS：Mn，Cu：I，Br粉末材料受到超短激光脉冲激发后，其光生电子和浅束缚电子的衰减过程。
The incorporation of noble-metal nanoparticles with wide band gap semiconductor can efficiently enlarge the visible light response range, meanwhile, the heterojunction between this two could enhance the separation of photogenerated charge carriers.
将贵金属纳米粒子与宽带隙半导体复合，可有效地扩展TiO2的光响应范围，同时，二者之间的异质结还可以起到促进光生电荷分离的作用。
The Research on Photogenerated Charge Transfer of Organic/inorganic Heterojunction
有机/无机异质结光生电荷迁移行为研究
So far, the applications of many photocatalytic materials in the photocatalytic hydrogen production field have been greatly limited due to the low efficiencies resulted from the easy recombination of photogenerated charge carriers.
迄今为止，该领域的科研工作者开发了多种可用于光催化制氢的材料，但是由于光生电子和空穴的复合导致的较低的产氢效率严重的限制了此类材料的实际应用。
Effect of Platinum Loading on Lifetime of Photogenerated Charge Carriers of TiO_2 Studied by Time-resolved Photoconductivity
瞬态光电导谱研究Pt的负载对TiO2光生载流子寿命的影响
However, ZnO photocatalysts have an inherent and obvious drawback, that is, the photogenerated charge carriers (hole-electron pairs) can recombine easy.
然而由于ZnO其固有的缺陷&光生电子-空穴对容易复合，这降低了其光催化活性。
Therefore, seeking a suitable approach to effectively separate the photogenerated electrons and holes and increase the utilization of photogenerated charge carriers is significant for enhancing the photocatalytic activity for hydrogen production.
因此，寻找合适的途径强化光生电子与空穴的分离、增加光生载流子的利用效率，就成为提高光催化剂产氢活性的关键所在。
Research on Characteristics of Photogenerated Charge in Nano-TiO_2
纳米TiO2的光生电荷迁移特性研究