Formic acid: an accelerator and quality promoter for nonseeded growth of CH3NH3PbI3 single crystals. Issue 9 (15th December 2017)

• Record Type: Journal Article
• Authors: Lv, Qianrui; Lian, Zhipeng; Li, Qiang; Sun, Jia-Lin; Yan, Qingfeng
• Is Part Of: Chemical communications. Volume 54:Issue 9(2018)
• Page Start: 1049
• Page End: 1052
• Publication Date: 2017-12-15
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c7cc07154j
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : With the aid of formic acid, CH3 NH3 PbI3 single crystals of 9 mm length were directly harvested within 3 days via a nonseeded solution temperature-lowering (STL) method. Abstract : With the aid of formic acid, CH3 NH3 PbI3 single crystal of 9 mm in length was directly harvested within 3 days via a nonseeded solution temperature-lowering (STL) method. It showed a record-narrow full width at half maximum of 13 arcsec for the high-resolution X-ray rocking curve, a low trap-state density of 3.1 × 10 9 cm −3, a high carrier mobility of 162 cm 2 V −1 s −1 and high moisture stability. The addition of formic acid could suppress the oxidation of iodide ions in a conventional STL process, resulting in rapid growth of high-quality CH3 NH3 PbI3 single crystals.