【摘 要】
：
在量子点太阳能电池中,太阳光激发量子点产生光激发电子,这部分电子快速转移给电子受体比如说TiO2,从而有效地产生光电流[1].当激发光的能量大于量子点的能带隙时,会产生热电
【机 构】
：
吉林大学物理学院,长春,130012集成光电子国家重点实验室,吉林大学电子科学与工程学院,长春,130012
论文部分内容阅读
在量子点太阳能电池中,太阳光激发量子点产生光激发电子,这部分电子快速转移给电子受体比如说TiO2,从而有效地产生光电流[1].当激发光的能量大于量子点的能带隙时,会产生热电子与空穴对,它们会迅速弛豫到带边,与此同时,多余的能量以声子的形式损耗掉,传统的太阳能电池就是把处在带边的电子和空穴抽取出来形成电流.然而,在热电子与空穴弛豫到带边这个过程中,有很大一部分太阳能散失掉了,如果这些能量可以被充分利用起来,那么光电转换效率就可以大幅度的提高,理论上可以达到66％[2],基于此,对热电子转移的研究越来越重要.
其他文献
First-principles calculations are performed to investigate the structural, elastic, and thermodynamic properties of the four main intermetallic phases, name
The CO2 adsorption on Plutonium dioxide (PuO2) (110) surface was studied using projector-augmented wave (PAW) method based on density-functional theory corr
Full mechanistic understanding of methanol-to-olefins (MTO) conversion is urgently required, not least for the precise control of product selectivity and ra
We have realized the laser cooling and trapping of 171yb atoms in the 399-nm 1S0-1P1 MOT and the 556-nm 1S0-3p1 MOT, and loaded the ultracold atoms into the opt
Quantum gases beyond the usual dilute limit have been a longstanding challengein theoretical physics for more than half century since the dilute gastheory was p
The electronic structures and elastic anisotropies of cubic Ti3AlN, Zr3AlN, and Hf3AlN are investigated by pseudopotential plane-wave method based on densit
Ultracold quantum gas has become a controllable and reachable tabletop on research of many interesting physical problems in atomic physics, condensed matter and
Atomic Bose-Einstein condensates confined to a dual-ring trap support Josephson vortices as topologically stable defects in the relative phase.We propose a
The precise and convenient control of quantum states is a major goal inatom and light, a nd is expected to lead to new physics and applications.Based on a seque
光时域反射测量(Optical time-domain reflectometry,OTDR) [1]是诊断光纤通信网络故障的主要技术.传统方法发射单个脉冲光作为探测信号,通过测量其后向散射和反射信号功率和