138(17), 5576–5584 (2016)įeng, H.P., Tang, L., Zeng, G.M., Zhou, Y., Deng, Y.C., Ren, X., Song, B., Liang, C., Wei, M.Y., Yu, J.F.: Core-shell nanomaterials: applications in energy storage and conversion. Wu, L., Chen, S.Y., Fan, F.J., Zhuang, T.T., Dai, C.M., Yu, S.H.: Polytypic nanocrystals of Cu-based ternary chalcogenides: colloidal synthesis and photoelectrochemical properties. Song, S., Kang, G., Pyeon, L., Lim, C., Lee, G.-Y., Park, T., Choi, J.: Systematically optimized bilayered electron transport layer for highly efficient planar perovskite solar cells (η = 21.1%). Giustino, F., Snaith, H.J.: Toward lead-free perovskite solar cells. Zhao, H., Rosei, F.: Colloidal quantum dots for solar technologies. Zhang, S., Wu, S., Chen, W., Zhu, H., Xiong, Z., Yang, Z., Chen, C., Chen, R., Han, L., Chen, W.: Solvent engineering for efficient inverted perovskite solar cells based on inorganic CsPbI 2Br light absorber. We conclude with a detailed account of the latest research progress in structure, materials, and performance of LSCs based on colloidal core/shell QDs and a further perspective on the remaining key issues and open opportunities in the field. We further discuss in details the relationship between structure and optical properties, which is a key requirement for their applications in LSCs. In this chapter, we first introduce the working principle of an LSC, and then we discuss the design and synthesis of core/shell QDs with high Stokes shift and high fluorescence quantum yield, and core/shell structure-dependent band energy alignment. Among various types of fluorophores used in LSCs, core/shell quantum dots (QDs) are promising candidates as a new type of absorber/emitter in LSCs, due to their size-tunable wide absorption spectrum, narrow emission spectrum, high quantum yield, and structure-engineered large Stokes shift compared to organic dyes and polymers.
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