Institute of Solar Energy, and Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, PR China.
Adv Mater. 2015 Jan 21;27(3):555-61. doi: 10.1002/adma.201401553. Epub 2014 Sep 10.
Nanostructured silicon solar cells show great potential for new-generation photovoltaics due to their ability to approach ideal light-trapping. However, the nanofeatured morphology that brings about the optical benefits also introduces new recombination channels, and severe deterioration in the electrical performance even outweighs the gain in optics in most attempts. This Research News article aims to review the recent progress in the suppression of carrier recombination in silicon nanostructures, with the emphasis on the optimization of surface morphology and controllable nanostructure height and emitter doping concentration, as well as application of dielectric passivation coatings, providing design rules to realize high-efficiency nanostructured silicon solar cells on a large scale.
纳米结构硅太阳能电池由于其接近理想光捕获的能力，在新一代光伏技术中显示出巨大的潜力。然而，带来光学效益的纳米特征形态也引入了新的复合通道，在大多数尝试中，即使在光学增益方面，严重的电性能恶化甚至超过了优势。本文旨在综述硅纳米结构中载流子复合抑制的最新进展，重点是优化表面形态和可控纳米结构高度和发射极掺杂浓度，以及介电钝化涂层的应用，为实现高效率纳米结构硅太阳能电池提供设计规则，实现大规模应用。
