Chemical Management for Colorful, Efficient, and Stable Inorganic–Organic Hybrid Nanostructured Solar Cells

✍ Scribed by Noh, Jun Hong; Im, Sang Hyuk; Heo, Jin Hyuck; Mandal, Tarak N.; Seok, Sang Il

• Book ID: 120271475
• Publisher: American Chemical Society
• Year: 2013
• Tongue: English
• Weight: 444 KB
• Volume: 13
• Category: Article
• ISSN: 1530-6984
• DOI: 10.1021/nl400349b

✦ Synopsis

Chemically tuned inorganic−organic hybrid materials, based on CH 3 NH 3 (MA)Pb(I 1−x Br x ) 3 perovskites, have been studied using UV−vis absorption and X-ray diffraction patterns and applied to nanostructured solar cells. The band gap engineering brought about by the chemical management of MAPb(I 1−x Br x ) 3 perovskites can be controllably tuned to cover almost the entire visible spectrum, enabling the realization of colorful solar cells. We demonstrate highly efficient solar cells exhibiting 12.3% in a power conversion efficiency of under standard AM 1.5, for the most efficient device, as a result of tunable composition for the light harvester in conjunction with a mesoporous TiO 2 film and a hole conducting polymer. We believe that the works highlighted in this paper represent one step toward the realization of low-cost, high-efficiency, and long-term stability with colorful solar cells.