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首页> 外文期刊>Advanced Functional Materials >Multiphoton Absorption Stimulated Metal Chalcogenide Quantum Dot Solar Cells under Ambient and Concentrated Irradiance
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Multiphoton Absorption Stimulated Metal Chalcogenide Quantum Dot Solar Cells under Ambient and Concentrated Irradiance

机译：多光子吸收刺激刺激的金属硫属元素化物量子点太阳能电池在环境和浓缩辐照度下

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摘要

Colloidal metal chalcogenide quantum dots (QDs) have excellent quantum efficiency in light-matter interactions and good device stability. However, QDs have been brought to the forefront as viable building blocks in bottom-up assembling semiconductor devices, the development of QD solar cell (QDSC) is still confronting considerable challenges compared to other QD technologies due to their low performance under natural sunlight, as a consequence of untapped potential from their quantized density-of-state and inorganic natures. This report is designed to address this long-standing challenge by accessing the feasibility of using QDSC for indoor and concentration PV (CPV) applications. This work finds that above bandgap photon energy irradiation of QD solids can generate high densities of excitons via multi-photon absorption (MPA), and these excitons are not limited to diffuse by Auger recombination up to 1.5 x 10(19) cm(-3) densities. Based on these findings, a 19.5% (2000 lux indoor light) and an 11.6% efficiency (1.5 Suns) have been facilely realized from ordinary QDSCs (9.55% under 1 Sun). To further illustrate the potential of the MPA in QDSCs, 21.29% efficiency polymer lens CPVs (4.08 Suns) and viable sensor networks powered by indoor QDSCs matrix have been demonstrated.
机译：胶体金属硫属元素化物量子点（QDS）在浅品相互作用和良好的装置稳定性方面具有优异的量子效率。然而，由于自然阳光下的低性能，QDS半导体器件中，QDS在自下而上的组装半导体器件中，QD太阳能电池（QDSC）的开发仍然面临着大量挑战，因此QDS QDS QDS的QD仍然面临着显着挑战。未开发的潜力从其量化密度和无机自然的结果。本报告旨在通过访问使用QDSC进行室内和浓度PV（CPV）应用的可行性来解决这一长期挑战。该工作发现，上面的QD固体的光子光子能量照射可以通过多光子吸收（MPa）产生高密度的激子，并且这些激子不限于螺旋延长重组延伸至1.5×10（19）cm（-3 ）密度。根据这些调查结果，从普通的QDSC（1岁以下的9.55％）有效地实现了19.5％（2000勒克斯室内灯）和11.6％的效率（1.5±5％）。为了进一步说明QDSC中MPa的电位，已经证明了21.29％的效率聚合物透镜CPV（4.08太阳）和由室内QDSCS矩阵供电的可行传感器网络。

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