%AHe, Yanjie%AYoon, Young%AHarn, Yeu%ABiesold-McGee, Gill%ALiang, Shuang%ALin, Chun%ATsukruk, Vladimir%AThadhani, Naresh%AKang, Zhitao%ALin, Zhiqun%BJournal Name: Science Advances; Journal Volume: 5; Journal Issue: 11 %D2019%I %JJournal Name: Science Advances; Journal Volume: 5; Journal Issue: 11 %K %MOSTI ID: 10142682 %PMedium: X %TUnconventional route to dual-shelled organolead halide perovskite nanocrystals with controlled dimensions, surface chemistry, and stabilities %XThe past few years have witnessed rapid advances in the synthesis of high-quality perovskite nanocrystals (PNCs). However, despite the impressive developments, the stability of PNCs remains a substantial challenge. The ability to reliably improve stability of PNCs while retaining their individual nanometer size represents a critical step that underpins future advances in optoelectronic applications. Here, we report an unconventional strategy for crafting dual-shelled PNCs (i.e., polymer-ligated perovskite/SiO 2 core/shell NCs) with exquisite control over dimensions, surface chemistry, and stabilities. In stark contrast to conventional methods, our strategy relies on capitalizing on judiciously designed star-like copolymers as nanoreactors to render the growth of core/shell NCs with controlled yet tunable perovskite core diameter, SiO 2 shell thickness, and surface chemistry. Consequently, the resulting polymer-tethered perovskite/SiO 2 core/shell NCs display concurrently a stellar set of substantially improved stabilities (i.e., colloidal stability, chemical composition stability, photostability, water stability), while having appealing solution processability, which are unattainable by conventional methods. %0Journal Article