Supramolecular assembly of blue and green halide perovskites with near-unity photoluminescence

Cheng Zhu; Jianbo Jin; Zhen Wang; Zhenpeng Xu; Maria C Folgueras; Yuxin Jiang; Can B Uzundal; Han K D Le; Feng Wang; Xiaoyu Rayne Zheng; Peidong Yang

doi:10.1126/science.adi4196

Supramolecular assembly of blue and green halide perovskites with near-unity photoluminescence

Science. 2024 Jan 5;383(6678):86-93. doi: 10.1126/science.adi4196. Epub 2024 Jan 4.

Authors

Cheng Zhu^#^{1

2

3}, Jianbo Jin^#⁴, Zhen Wang¹, Zhenpeng Xu¹, Maria C Folgueras^{1

2

3}, Yuxin Jiang^{2

4}, Can B Uzundal^{2

4}, Han K D Le^{2

4}, Feng Wang^{2

3

5}, Xiaoyu Rayne Zheng^{1

6}, Peidong Yang^{1

2

3

4}

Affiliations

¹ Department of Materials Science and Engineering, University of California Berkeley, Berkeley, CA 94720, USA.
² Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
³ Kavli Energy NanoScience Institute, Berkeley, CA 94720, USA.
⁴ Department of Chemistry, University of California Berkeley, Berkeley, CA 94720, USA.
⁵ Department of Physics, University of California Berkeley, Berkeley, CA 94720, USA.
⁶ Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

^# Contributed equally.

PMID: 38175897
DOI: 10.1126/science.adi4196

Abstract

The metal-halide ionic octahedron is the optoelectronic unit for halide perovskites, and a crown ether-assisted supramolecular assembly approach can pack various ionic octahedra into tunable symmetries. In this work, we demonstrate near-unity photoluminescence quantum yield (PLQY) blue and green emission with the supramolecular assembly of hafnium (Hf) and zirconium (Zr) halide octahedral clusters. (18C6@K)₂HfBr₆ powders showed blue emission with a near-unity PLQY (96.2%), and green emission was also achieved with (18C6@K)₂ZrCl₄Br₂ powders at a PLQY of 82.7%. These highly emissive powders feature facile low-temperature solution-based synthesis conditions and maintain high PLQY in solution-processable semiconductor inks under ambient conditions, and they were used in thin-film displays and emissive three-dimensional-printed architectures that exhibited high spatial resolution.