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Just Accepted

Just Accepted manuscripts are peer-reviewed and accepted for publication. They are posted online prior to technical editing formatting for publication and author proofing.

  • Photoluminescence properties of ultrathin CsPbCl3 nanowires on mica substrate

    Yan Gao, Liyun Zhao, Qiuyu Shang, Chun Li, Zhen Liu, Qi Li, Xina Wang, Qing Zhang

    Available online

    Abstract Full Text PDF

    Fabricating high-quality cesium lead chloride (CsPbCl3) perovskite nanowires (NWs) with dimension below < 10 nm is not only of interests in fundamental physics, but also holds the great promise for optoelectronic applications. Herein, ultrathin CsPbCl3NWs with height of ~7 nm, have been achieved via vapor phase deposition method. Power and temperature-dependent photoluminescence (PL) spectroscopy is performed to explore the emission properties of the CsPbCl3 NWs. Strong free exciton recombination is observed at ~3.02 eV as the temperature (T) is 78?294 K with binding energy of ~ 37.5 meV. With the decreasing of T, the PL peaks exhibit a first blue shift by 2 meV for T ~ 294?190 K and then a redshift by 4 meV for T ~ 190?78 K. The exciton–optical phonon interaction plays a major role in the linewidth broadening of the PL spectra with average optical phonon energy of ~48.0 meV and the interaction coefficient of 203.9 meV. These findings advance the fabrication of low dimensional CsPbCl3 perovskite and provide in sights into the photo physics of the CsPbCl3 perovskite.

  • Heteroepitaxy of semiconductor thin films

    Gu Yi

    Available online

    Abstract Full Text PDF

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