7 papers · 1 filter
Carrier Capture at Defects from Finite-Temperature Lattice Dynamics
Menglin Huang, Shanshan Wang, Shiyou Chen
Defect-assisted carrier capture is commonly described within nonradiative multiphonon (NMP) theory using normal modes of the equilibrium defect structure. This description becomes…
Nonradiative Multiphonon Model of Deep-Level Transient Spectroscopy: Beyond Henry-Lang Model
Menglin Huang, Shanshan Wang, Junjie Zhou +2
Deep-level transient spectroscopy (DLTS) is a key experimental method for defect characterization, yet its analysis remains controversial, and the two widely used models developed…
Electroluminescence of NV Color Centers in Diamond p-i-n Diodes mediated by Charge-state Dynamics
Ruirong Bai, Menglin Huang, Shanshan Wang +2
As the electroluminescence (EL) of NV color centers in diamond has been realized in p-i-n diodes,the underlying mechanism remains a puzzle for longer than a decade. In this study,u…
Carrier Emission and Capture Competition mediated A(n)BC Recombination Model in Semiconductors with Multi-Level Defects
Shanshan Wang, Menglin Huang, Su-Huai Wei +2
The ABC model has been widely used to describe the carrier recombination rate, in which the rate of non-radiative recombination assisted by deep-level defects is assumed to depend…
Defect Phonon Renormalization during Nonradiative Multiphonon Transitions in Semiconductors
Junjie Zhou, Shanshan Wang, Menglin Huang +2
As a typical nonradiative multiphonon transition in semiconductors, carrier capture at defects is critical to the performance of semiconductor devices. Its transition rate is usual…
Metastability and anharmonicity enhance defect-assisted nonradiative recombination in low-symmetry semiconductors
Menglin Huang, Shanshan Wang, Shiyou Chen
Strong nonradiative recombination has been observed in quasi-one-dimensional antimony selenide, which runs counter to the simple intuition that claims high defect tolerance exists…