Realization of 18.97% theoretical efficiency of 0.9 μm thick c-Si/ZnO heterojunction ultrathin-film solar cells <i>via</i> surface plasmon resonance enhancement
Fei Zhao, Jiangchuan Lin, Zhenhua Lei, Zao Yi, Feng Qin, Jianguo Zhang, Li Liu, Xianwen Wu, Wen‐Xing Yang, Pinghui Wu
Abstract
and 18.97%, respectively. Moreover, the effect of different illumination angles on the optical absorption of the SCs was explored. The SCs have good absorption when the incident angles are in the range from 0 degrees to 60 degrees. Furthermore, the underlying mechanism for the enhancement of photon absorption in the SCs was discussed through careful analysis of the electric field intensity profile at different wavelengths. It was found that the electric field tends to concentrate around the bottom pyramids and top trapezoidal pyramids even for the long-wave band, which results in an excellent light-trapping performance.
Topics & Concepts
Materials scienceOptoelectronicsAbsorption (acoustics)HeterojunctionActive layerOpticsWavelengthElectric fieldSurface plasmonPhotonicsSurface plasmon resonanceRayPlasmonLayer (electronics)NanotechnologyNanoparticleThin-film transistorQuantum mechanicsComposite materialPhysicsThin-Film Transistor TechnologiesSilicon Nanostructures and PhotoluminescenceSilicon and Solar Cell Technologies