DataVXACS NanoPaper
journal article·2015-12-22Open access

Superior Optical Properties of Perovskite Nanocrystals as Single Photon Emitters

Fengrui Hu, Huichao Zhang, Chun Sun, Chunyang Yin, Bihu Lv, Chunfeng Zhang, William W. Yu, Xiaoyong Wang, Yu Zhang, Min Xiao

ACS Nano· Volume 9· Issue 12
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Source abstract

Abstract

The power conversion efficiency of photovoltaic devices based on semiconductor perovskites has reached ∼20% after just several years of research efforts. With concomitant discoveries of other promising applications in lasers, light-emitting diodes, and photodetectors, it is natural to anticipate what further excitement these exotic perovskites could bring about. Here we report on the observation of single photon emission from single CsPbBr3 perovskite nanocrystals (NCs) synthesized from a facile colloidal approach. Compared with traditional metal-chalcogenide NCs, these CsPbBr3 NCs exhibit nearly 2 orders of magnitude increase in their absorption cross sections at similar emission colors. Moreover, the radiative lifetime of CsPbBr3 NCs is greatly shortened at both room and cryogenic temperatures to favor an extremely fast output of single photons. The above superior optical properties have paved the way toward quantum-light applications of perovskite NCs in various quantum information processing schemes.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Optical properties and cooling technologies in crystalline materials

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

Affiliations

National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

College of Electronics and Information, Hangzhou Dianzi University, Xiasha Campus, Hangzhou 310018, China

State Key Laboratory on Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun 130012, China

Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, United States

Funding

Ministry of Science and Technology of the People's Republic of China · Priority Academic Program Development of Jiangsu Higher Education Institutions · National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province

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