Expanding the potential of Zn0.15Sn0.85(Se0.95S0.05)2 crystals for applications in near-infrared optoelectronics, sensing, and Van der Waals heterojunctions
Yash N. Doshi , Dixita S. Parmar , Ajay D. Zanpadiya , Aditi P. Pathak , Divya R. Solanki , Dimple V. Shah , Vishva M. Jain , Hiren N. Desai , Piyush B. Patel
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引用次数: 0
Abstract
Layered Zn0.15Sn0.85(Se0.95S0.05)2 (Q2) crystals with a hexagonal crystalline structure were grown using the direct vapor transport technique (DVT). This research explores applications of the grown Q2 crystals as a near-infrared (NIR) photodetector, vacuum pressure sensor, and Van der Waals heterojunction. The NIR photodetector demonstrating stable, rapid switching with an improved responsivity of 153.38 mAW-1. A Q2 crystal-based NIR photodetector achieves an external quantum efficiency of 21.17 %. The Maxwellian distribution was applied to analysis trap depth of NIR photodetector. Additionally, the pulse resistive response of the Q2 crystal-based vacuum pressure sensor was evaluated across a vacuum pressure range from −1033 mbar to 0 mbar. The sensor exhibited a stable response, with 61.27 % at −1033 mbar and 5.85 % at −133 mbar with an average delay time of 2.99 s. Furthermore, the Van der Waals heterojunction device formed by the grown p-type Q2 crystals with another n-type quaternary crystal was studied using the thermionic-emission (TE) model. The ideality factors have been defined in the range of 1 to 2 by studying the current voltage (I-V) characteristics under different temperatures.
期刊介绍:
It is the aim of this journal to bring together in one publication outstanding papers reporting new and original work in the following areas: (1) applications of solid-state physics and technology to electronics and optoelectronics, including theory and device design; (2) optical, electrical, morphological characterization techniques and parameter extraction of devices; (3) fabrication of semiconductor devices, and also device-related materials growth, measurement and evaluation; (4) the physics and modeling of submicron and nanoscale microelectronic and optoelectronic devices, including processing, measurement, and performance evaluation; (5) applications of numerical methods to the modeling and simulation of solid-state devices and processes; and (6) nanoscale electronic and optoelectronic devices, photovoltaics, sensors, and MEMS based on semiconductor and alternative electronic materials; (7) synthesis and electrooptical properties of materials for novel devices.