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Low dimensional electric and photonic materials and devices

Prof Hyeonsik Cheong, Prof Chang Liu

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  1. Content type: Nano Express

    Self-assembled organic-inorganic CH3NH3PbI3 perovskite microwires (MWs) upon humidity exposure along several weeks were investigated by photoluminescence (PL) spectroscopy, Raman spectroscopy, and X-ray diffracti...

    Authors: Rubén Segovia, Geyang Qu, Miao Peng, Xiudong Sun, Hongyan Shi and Bo Gao

    Citation: Nanoscale Research Letters 2018 13:79

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  2. Content type: Nano Express

    Misaligned edge-to-edge dimers are the common products during the preparation of Ag nanoprism dimers using self-assembly method. However, in the self-assembly method, Ag nanoprisms are easily truncated because...

    Authors: Hanning Yang, Edgar Oduor Owiti, Xiangqian Jiang, Siren Li, Peng Liu and Xiudong Sun

    Citation: Nanoscale Research Letters 2017 12:430

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  3. Content type: Nano Express

    We investigate the ferroelectric state of a tetragonal BiFeO3 thin film grown on a LaAlO3 (001) substrate using an optical second harmonic generation (SHG) microscope. Whereas the ferroelectric state of this mate...

    Authors: Chang Jae Roh, Sun Young Hamh, Chang-Soo Woo, Kwang-Eun Kim, Chan-Ho Yang and Jong Seok Lee

    Citation: Nanoscale Research Letters 2017 12:353

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  4. Content type: Nano Express

    The multi-functional nanomaterial constructed with more than one type of materials has gained a great attention due to its promising application. Here, a high white light photodetector prototype established wi...

    Authors: Jinyang Liu, Qingqing Huang, Kun Zhang, Yangyang Xu, Mingzhu Guo, Yongqiang Qian, Zhigao Huang, Fachun Lai and Limei Lin

    Citation: Nanoscale Research Letters 2017 12:259

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  5. Content type: Nano Express

    We report on a thickness-dependent wetting property of WS2/Al2O3 and WS2/SiO2/Si structures. We prepared WS2 films with gradient thickness by annealing thickness-controlled WO3 films at 800 °C in sulfur atmospher...

    Authors: Byoung Ki Choi, In Hak Lee, Jiho Kim and Young Jun Chang

    Citation: Nanoscale Research Letters 2017 12:262

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  6. Content type: Nano Express

    Five percent of Fe-doped ZnO (ZnO:Fe) thin films were deposited on Pt/TiO2/SiO2/Si substrates by a spin-coating method. The films were annealed without (ZnO:Fe-0T) and with a pulsed magnetic field of 4 T (ZnO:Fe-...

    Authors: Hongtao Xu, Changjin Wu, Zhao Xiahou, Ranju Jung, Ying Li and Chunli Liu

    Citation: Nanoscale Research Letters 2017 12:176

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  7. Content type: Nano Express

    Oxygen vacancies have a profound effect on the magnetic, electronic, and transport properties of transition metal oxide materials. Here, we studied the influence of oxygen vacancies on the magnetoresistance (M...

    Authors: Umasankar Dash, Susant Kumar Acharya, Bo Wha Lee and Chang Uk Jung

    Citation: Nanoscale Research Letters 2017 12:168

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  8. Content type: Nano Express

    We investigated the influence of metal coating on the optical characteristics of Si nanopillar (NP) arrays with and without thin metal layers coated on the sample surface. The reflection dips of the metal-coat...

    Authors: Sujung Kim, Eunah Kim, Yeon Ui Lee, Eunkyo Ko, Hyeong-Ho Park, Jeong Weon Wu and Dong-Wook Kim

    Citation: Nanoscale Research Letters 2017 12:151

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  9. Content type: Nano Express

    InN nanocolumn arrays were grown on c-plane sapphire with and without anodic aluminum oxide (AAO) nanotemplates. The crystalline quality of InN nanocolumns was significantly improved by selective-area growth (...

    Authors: Xiao Wang, Guozhen Zhang, Yang Xu, Hao Wu and Chang Liu

    Citation: Nanoscale Research Letters 2017 12:145

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  10. Content type: Nano Express

    Oxygen vacancy (VO) strongly affects the properties of oxides. In this study, we used X-ray diffraction (XRD) to study changes in the VO concentration as a function of the Co-doping level of ZnO. Rietveld refinem...

    Authors: Ji Hun Park, Yeong Ju Lee, Jong-Seong Bae, Bum-Su Kim, Yong Chan Cho, Chikako Moriyoshi, Yoshihiro Kuroiwa, Seunghun Lee and Se-Young Jeong

    Citation: Nanoscale Research Letters 2015 10:186

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  11. Content type: Nano Express

    Ultrasmall microring and microdisk lasers with an asymmetric air/GaAs/Al0.98Ga0.02As waveguide and an active region based on InAs/InGaAs/GaAs quantum dots emitting around 1.3 μm were fabricated and studied. The d...

    Authors: Mikhail V Maximov, Natalia V Kryzhanovskaya, Alexey M Nadtochiy, Eduard I Moiseev, Ivan I Shostak, Andrey A Bogdanov, Zarina F Sadrieva, Alexey E Zhukov, Andrey A Lipovskii, Denis V Karpov, Janne Laukkanen and Juha Tommila

    Citation: Nanoscale Research Letters 2014 9:657

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  12. Content type: Nano Express

    Indium gallium nitride (InGaN) samples with single heterojunction (SH) and double heterojunction (DH) were prepared using metal-organic chemical vapor deposition. SH has a layer of InGaN thin film (thicknesses...

    Authors: Yung-Sheng Chen, Che-Hao Liao, Chie-Tong Kuo, Raymond Chien-Chao Tsiang and Hsiang-Chen Wang

    Citation: Nanoscale Research Letters 2014 9:334

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  13. Content type: Nano Express

    A scattering layer is utilized by mixing nanoporous spheres and nanoparticles in ZnO-based dye-sensitized solar cells. Hundred-nanometer-sized ZnO spheres consisting of approximately 35-nm-sized nanoparticles ...

    Authors: Chohui Kim, Hongsik Choi, Jae Ik Kim, Sangheon Lee, Jinhyun Kim, Woojin Lee, Taehyun Hwang, Suji Kang, Taeho Moon and Byungwoo Park

    Citation: Nanoscale Research Letters 2014 9:295

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  14. Content type: Nano Express

    Transparent conductive current-spreading layer is important for quantum efficiency and thermal performance of light-emitting diodes (LEDs). The increasing demand for tin-doped indium oxide (ITO) caused the pri...

    Authors: Xia Guo, Chun Wei Guo, Yuan Hao Jin, Yu Chen, Qun Qing Li and Shou Shan Fan

    Citation: Nanoscale Research Letters 2014 9:171

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  15. Content type: Nano Express

    The excitation and absorption properties of grating coupled graphene surface plasmons were studied. It was found that whether a mode can be excited is mainly determined by the frequency of incident light and t...

    Authors: Haiming Yuan, Hanning Yang, Pengzi Liu, Xiangqian Jiang and Xiudong Sun

    Citation: Nanoscale Research Letters 2014 9:90

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  16. Content type: Nano Express

    The effect of metal particles on the photoluminescence (PL) and the Raman spectra of functionalized SWCNTs in aqueous solutions was systematically investigated by studying three different metal particles (gold...

    Authors: Se-Jin Kim, June Park, Yuhyun Jeong, Hayoung Go, Kangseok Lee, Seunghun Hong and Maeng-Je Seong

    Citation: Nanoscale Research Letters 2014 9:85

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  17. Content type: Nano Express

    According to first-principles calculations, the solubility of Mg as a substitute for Ga or Al in Al x Ga1 – xN bulk is limited by large, positive formation enthalpies. In contras...

    Authors: Tongchang Zheng, Wei Lin, Duanjun Cai, Weihuang Yang, Wei Jiang, Hangyang Chen, Jinchai Li, Shuping Li and Junyong Kang

    Citation: Nanoscale Research Letters 2014 9:40

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  18. Content type: Nano Express

    Mg-doped ZnS hierarchical spheres have been synthesized via hydrothermal method using mixed solvents of ethylenediamine and DI water without any surface-active agent. The surface morphology and microstructure ...

    Authors: Devulapalli Amaranatha Reddy, Deok Hyeon Kim, Seuk Joo Rhee, Bo Wha Lee and Chunli Liu

    Citation: Nanoscale Research Letters 2014 9:20

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  19. Content type: Nano Express

    Stacked precursors of Cu-Zn-Sn-S were grown by radio frequency sputtering and annealed in a furnace with Se metals to form thin-film solar cell materials of Cu2ZnSn(S,Se)4 (CZTSSe). The samples have different abs...

    Authors: Gee Yeong Kim, Ju Ri Kim, William Jo, Dae-Ho Son, Dae-Hwan Kim and Jin-Kyu Kang

    Citation: Nanoscale Research Letters 2014 9:10

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