Supramolecular assembly of blue and green halide perovskites with near-unity photoluminescence-Reference-Cited by-同舟云学术

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

Published:2024-01-05 Issue:6678 Volume:383 Page:86-93
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Zhu Cheng¹²³^ORCID,Jin Jianbo⁴^ORCID,Wang Zhen¹^ORCID,Xu Zhenpeng¹^ORCID,Folgueras Maria C.¹²³^ORCID,Jiang Yuxin²⁴^ORCID,Uzundal Can B.²⁴,Le Han K. D.²⁴^ORCID,Wang Feng²³⁵^ORCID,Zheng Xiaoyu (Rayne)¹⁶^ORCID,Yang Peidong¹²³⁴^ORCID

Affiliation:

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.

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) 2 HfBr 6 powders showed blue emission with a near-unity PLQY (96.2%), and green emission was also achieved with (18C6@K) 2 ZrCl 4 Br 2 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.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/science.adi4196

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