Hongli Liu

Collaborative Innovation Center of Chemical Science and Engineering Tianjin

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Shirong Wang

Tianjin University

Xianggao Li

Collaborative Innovation Center of Chemical Science and Engineering Tianjin

Fei Zhang

Anhui University

Chao Gao

Electric Power Research Institute

Xiaofei Dong

Langfang Normal University

Huayu Bao

Tianjin University

Baofeng Zhao

Shandong Academy of Sciences

Dewang Li

Tianjin University

Zhiyuan Cong

Microbiology Institute of Shaanxi

Longfei Yuan

Tianjin University

Cooperative Institutions

Tianjin University

112

Collaborative Innovation Center of Chemical Science and Engineering Tianjin

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Qingdao University

Peking University

Central South University

Huazhong University of Science and Technology

South China University of Technology

Xi'an Jiaotong University

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Synthesis of a side chain conjugated polythiophene copolymer and its photovoltaic property

Synthetic Metals (2011)

Chao Gao Bo Qu Zhongliang Jiang Di Tian Hongli Liu

Polythiophene

Side chain

Acceptor

10.1016/j.synthmet.2011.02.014

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Citations (7)

Oxygen heterocyclic coumarin-based hybridized local and charge-transfer deep-blue emitters for solution-processed organic light-emitting diodes

Journal of Materials Chemistry C (2024)

Qi Xie Chuanxin Liao Hongli Liu Shirong Wang Xianggao Li

Coumarin was employed as a new acceptor to construct the HLCT emitters. The solution-processed OLEDs exhibited deep-blue emission with the CIE coordinates of (0.16, 0.09), and the devices based on BCz-6P realized the champion EQE max of 6.80%.

Deep blue

Acceptor

Champion

10.1039/d4tc00974f

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Citations (2)

Optoelectronic measurement in deformation of blast shock with Doppler effect

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2009)

Lei Shao Hongli Liu Chengzhi Jiang

This paper attempts to explore the feasibility of a system based on laser Doppler technique which has been established to realize remote dynamic measurement of high velocity deformation parameters of explosion vessel. It aims at developing a stable and reliable non-contact instrument with high precision for the measuring of explosion on site. Doppler signal's SNR is very low in remote measurement of explosion vessel, a moving solid object with high velocity. To enhance signal intensity, restrain noise and extract weak Doppler signal is the key to realizing remote measurement with high precision. Both optical structure optimizing and digital signal processing used to solve the arduous problem above will be discussed in this paper. The test results prove that the relative error of the instrument is less than 1% in measuring displacement.

SIGNAL (programming language)

10.1117/12.837714

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Citations (0)

Quantum‐Confined Dodecahedron CsPbBr₃ Quantum Dots by A Sequential Post‐Treatment Strategy for Efficient Blue PeLEDs

Advanced Functional Materials (2022)

Longfei Yuan Dewang Li Hongli Liu Fei Zhang Shirong Wang

Abstract CsPbBr 3 quantum dots (QDs) prepared through traditional hot‐injection and room temperature reprecipitation methods are usually hexahedral (nanoplate/cube) and green‐emitting. These methods severely obstruct the development of blue perovskite‐based light‐emitting diodes (PeLEDs) because the resultant QDs always suffer unachievable morphology regulation. Here, highly efficient blue‐emitting rhombic dodecahedron CsPbBr 3 QDs (CsPbBr 3 <12> QDs) are obtained by regulating morphological transformation for the first time through a novel and facile sequential post‐treatment strategy. Hydrobromide (‐NH 3 + ) with stronger adsorption energy promotes the morphology transform of QDs from nanoplate to cube by substituting oleylamine in the first step. Then, polar solvent vapor eliminates PbX 6 4− and led to the (112) crystal plane of the cube QDs being exposed, which is effectively stabilized by ‐NH 3 + to realize morphology transition from cube to the dodecahedron. Highly efficient 12‐faceted dodecahedrons are endowed with significantly enhanced photoluminescence quantum yield of 89.8% at 476 nm as well as uniform size distribution and mono‐dispersity. The target blue PeLEDs achieve the maximum external quantum efficiency of 6.6% (480 nm) and excellent spectrum stability. This study provides a new strategy to prepare blue‐emitting CsPbBr 3 <12> QDs by delicate control toward the growth and polyhedron process of crystal.

Dodecahedron

Quantum yield

Cube (algebra)

10.1002/adfm.202208065

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Citations (11)

Application of liquid crystal display for binary optics

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2001)

Huijuan Zhang Zhaoqi Wang Hongli Liu

The property of phase-mostly modulation of the SVGA1 spatial light modulator, which is manufactured by CRL Ltd. in UK., was investigated and the phase shift of (pi) was achieved. The Dammann grating of binary-phase device for fan-out up to 5x5 was designed and the data of the phase device were fed into the liquid crystal display. The 5x5 array of spots was produced. It has been found that the spatial light modulator can be used as a phase modulated binary optical device to realize some functions in the laboratory.

Spatial light modulator

Modulation (music)

Binary data

10.1117/12.444701

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Citations (0)

Simple dopant-free hole-transporting materials with p -π conjugated structure for stable perovskite solar cells

Applied Surface Science (2017)

Mengna Sun Xue‐Yuan Liu Fei Zhang Hongli Liu Xicheng Liu

Thermal Stability

10.1016/j.apsusc.2017.04.153

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Citations (17)

Impact of peripheral groups on pyrimidine acceptor-based HLCT materials for efficient deep blue OLED devices

Journal of Materials Chemistry C (2022)

Yinzhao Zhen Fei Zhang Hongli Liu Yifei Yan Xianggao Li

Two pyrimidine acceptor-based HLCT materials of different peripheral groups were designed and reported for efficient deep blue OLED devices.

Acceptor

Deep blue

10.1039/d2tc01766k

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Citations (26)

A high performance Au/CH₃NH₃PbI₃/Cu planar-type self-powered photodetector

Journal of Materials Chemistry C (2022)

Jia Chen Hongli Liu Xiaoyuan Zhang Shirong Wang Xianggao Li

Self-powered photodetectors are great potential candidates in the next generation of low energy-consumption photoelectric devices.

Photoelectric effect

10.1039/d2tc02477b

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Citations (8)

High-Performance Planar Self-Driven Visible and Near-Infrared Photodetector Based on Pb-Sn Perovskite Single Crystals

The Journal of Physical Chemistry Letters (2023)

Qun Li Shirong Wang Chen Jia Hongli Liu Xianggao Li

MAPbI3 single crystals (SCs) are promising candidates for self-driven photodetectors due to their spontaneous polarization properties. However, their absorption cutoff wavelength, which is limited to 850 nm, severely hinders their further application in near-infrared photodetectors. In this work, a series of high-quality (MAPbI3)x(FASnI3)1-x (x = 0.8, 0.5 and 0.2) SCs with low defect density and wide absorption range were obtained by employing 1,4-pentanolactone as the solvent at low temperature. Typically, (MAPbI3)0.2(FASnI3)0.8 SCs grown at 32 °C realize absorption in the UV-vis-NIR range from 200 to 1120 nm, which is superior among the absorption wavelengths reported for Pb-Sn perovskite SCs. Resultantly, by merit of the spontaneously polarized built-in electric field, for (MAPbI3)0.2(FASnI3)0.8 SCs based self-driven photodetectors with planar symmetric electrodes exhibiting significant responsivities at 405-1064 nm, the device achieved a maximum responsiveness and detection of 0.247 A/W and 1.17 × 1012 Jones, respectively.

10.1021/acs.jpclett.3c01083

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Citations (7)

Synthesis of two benzo[1,2-b:3,4-b′]dithiophene-based conjugated polymers with different side chains and their applications in photovoltaic devices

Synthetic Metals (2012)

Bo Qu Hongsheng Yang Di Tian Hongli Liu Zhiyuan Cong

Side chain

Acceptor

Open-circuit voltage

10.1016/j.synthmet.2012.09.009

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Citations (12)