DataVXAdvanced MaterialsPaper
journal article·2023-02Open access

A Universal Perovskite Nanocrystal Ink for High‐Performance Optoelectronic Devices

Hochan Song, Jonghee Yang, Woo Hyeon Jeong, Jeongjae Lee, Tack Ho Lee, Jung Won Yoon, Hajin Lee, Alexandra J. Ramadan, Robert D. J. Oliver, Seong Chan Cho, Seul Gi Lim, Ji Won Jang, Zhongkai Yu, Jae Taek Oh, Eui Dae Jung, Myoung Hoon Song, Sung Heum Park, James R. Durrant, Henry J. Snaith, Sang Uck Lee, Bo Ram Lee, Hyosung Choi

Advanced Materials· Volume 35· Issue 8
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Source abstract

Abstract

Abstract Semiconducting lead halide perovskite nanocrystals (PNCs) are regarded as promising candidates for next‐generation optoelectronic devices due to their solution processability and outstanding optoelectronic properties. While the field of light‐emitting diodes (LEDs) and photovoltaics (PVs), two prime examples of optoelectronic devices, has recently seen a multitude of efforts toward high‐performance PNC‐based devices, realizing both devices with high efficiencies and stabilities through a single PNC processing strategy has remained a challenge. In this work, diphenylpropylammonium (DPAI) surface ligands, found through a judicious ab‐initio‐based ligand search, are shown to provide a solution to this problem. The universal PNC ink with DPAI ligands presented here, prepared through a solution‐phase ligand‐exchange process, simultaneously allows single‐step processed LED and PV devices with peak electroluminescence external quantum efficiency of 17.00% and power conversion efficiency of 14.92% (stabilized output 14.00%), respectively. It is revealed that a careful design of the aromatic rings such as in DPAI is the decisive factor in bestowing such high performances, ease of solution processing, and improved phase stability up to 120 days. This work illustrates the power of ligand design in producing PNC ink formulations for high‐throughput production of optoelectronic devices; it also paves a path for “dual‐mode” devices with both PV and LED functionalities.
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Research context

NanomaterialsElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Organic Light-Emitting Diodes Research · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry Research Institute for Convergence of Basic Science, and Research Institute for Natural Sciences Hanyang University Seoul 04763 South Korea

Institute for Advanced Materials and Manufacturing Department of Materials Science and Engineering University of Tennessee Knoxville TN 37996 United States

School of Earth and Environmental Sciences Seoul National University Seoul 08826 South Korea

Department of Chemistry and Centre for Processable Electronics Imperial College London London W12 0BZ United Kingdom

Department of Applied Chemistry Center for Bionano Intelligence Education and Research Hanyang Universitry Ansan 15588 South Korea

Department of Physics University of Oxford Clarendon Laboratory Parks Road Oxford OX1 3PU United Kingdom

Department of Physics Pukyong National University Busan 48513 South Korea

Department of Electrical and Computer Engineering University of Toronto Toronto Ontario M5S 1A4 Canada

Department of Materials Science and Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea

SPECIFIC IKE College of Engineering Swansea University Swansea SA2 7AX United Kingdom

Funding

National Research Foundation of Korea · Engineering and Physical Sciences Research Council

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