Hole‐Transport Materials for Perovskite Solar Cells

作者：Laura Calió, Samrana Kazim, Michaël Grätzel, Shahzada Ahmad · 发表于：Angewandte Chemie International Edition · 年份：2016 · DOI：10.1002/anie.201601757 · 被引用次数：1006 · 研究领域：Perovskite Materials and Applications、Conducting polymers and applications、Chalcogenide Semiconductor Thin Films

The pressure to move towards renewable energy has inspired researchers to look for ideas in photovoltaics that may lead to a major breakthrough. Recently the use of perovskites as a light harvester has lead to stunning progress. The power conversion efficiency of perovskite solar cells is now approaching parity (>22 %) with that of the established technology which took decades to reach this level of performance. The use of a hole transport material (HTM) remains indispensable in perovskite solar cells. Perovskites can conduct holes, but they are present at low levels, and for efficient charge extraction a HTM layer is a prerequisite. Herein we provide an overview of the diverse types of HTM available, from organic to inorganic, in the hope of encouraging further research and the optimization of these materials.