Growth of axial nested P–N heterojunction nanowires for high performance diodes

Abstract

Heterojunction nanomaterials have attracted the interest of numerous scientists and engineers to explore the fundamental scientific understanding of the formation of heterojunction nanostructures, their special properties with enhanced electrical and optical performance and the relationship between the functionality and the molecular structures. In this work, we synthesized novel axial nested P-N heterojunction nanowires combining the inorganic semiconductor PbS and the organic conjugated polymer polypyrrole (PPy). The nested P-N heterojunction nanowires (NWs) show a higher rectification ratio (exceeding 100), long-term stability and high unilateral conductivity due to the bigger area of junction produced.

Axial heterostructure nanoarray as all‐solid‐state micro‐supercapacitors

“…In addition to the capacitive nature of the electrode material itself, the morphology of the electrode material has a critical impact on the performance of the SC. Compared with two‐dimensional (2D) dense nanofilms, one‐dimensional (1D) nanowires have ultrahigh specific surface area and short ion transport channels . When SC is electrochemically treated, it promotes rapid shuttle movement of ions and increase the rate performance and charge and discharge reactions of SC.…”

“…Compared with two-dimensional (2D) dense nanofilms, one-dimensional (1D) nanowires have ultrahigh specific surface area and short ion transport channels. [45][46][47] When SC is electrochemically treated, it promotes rapid shuttle movement of ions and increase the rate performance and charge and discharge reactions of SC. In addition, when the 2D dense nanofilm is used as an electrode material for flexible MSC device, problems such as material cracking seriously affect the use of MSCs.…”

Controlling the Interface Areas of Organic/Inorganic Semiconductor Heterojunction Nanowires for High-Performance Diodes

“…Low-dimensional organic/inorganic heterojunction nanomaterials exhibit unique optoelectronic and electric properties and potential applications. − Many approaches have been developed for preparing the organic/inorganic semiconductor heterojunction nanowires. ,,,,,− ,− ,, It is well-known that how to control the size of the interface of the heterojunction is a key factor for tuning the performance of heterojunction nanowires. There are some reports for growing organic/inorganic heterojunction nanowires with differently sized heterojunctional interfaces. ,,− ,,, However, precise control of the size of the heterojunctional interface is a crucial challenge to constructing organic/inorganic heterojunction nanowires with high performance. Electrochemical deposition technology with the help of porous anodized alumina oxide (AAO) templates has been discussed. − ,− , As yet, the possibilities are limited, and it is desirable to develop further concepts for the formation of nanoscale heterojunction assemblies.…”

“…There are some reports for growing organic/inorganic heterojunction nanowires with differently sized heterojunctional interfaces. ,,− ,,, However, precise control of the size of the heterojunctional interface is a crucial challenge to constructing organic/inorganic heterojunction nanowires with high performance. Electrochemical deposition technology with the help of porous anodized alumina oxide (AAO) templates has been discussed. − ,− , As yet, the possibilities are limited, and it is desirable to develop further concepts for the formation of nanoscale heterojunction assemblies.…”

Device applications of transition metal oxide thin films

“…Study of the diode and ultraviolet photodetector applications of p-NiO/n-IGZO thin film heterojunction structure Semiconductor diode, one of the extremely important components in modern electronics, has been studied for years due to its various applications such as rectifier, detector, photovoltaic devices, or luminescent devices. In general, the rectifying characteristic exists in three kinds of structures, namely point-contact diode, p-n junction diode, and Schottky diode[168][169][170][171][172][173][174]. Among them, p-n heterojunction diode made of transparent semiconductor oxides (TSOs) has attracted much attention due to its good electrical property and optical transparency.…”