Simple One‐Step Fabrication of Semiconductive Lateral Heterostructures Using Bipolar Electrodeposition

Abstract

Figure 3. a) The I-V curve of the transferred heterostructure (the inset shows the transferring steps) and b) the band alignments related to differnt points along the gradient of composition.www.advancedsciencenews.com www.pss-rapid.com

Recent Advances in 2D Lateral Heterostructures

“…Along this way, the lateral junction modulated by the thickness can be fabricated. Using bipolar electrodeposition (BPE) technique, Jamilpanah et al [ 156 ] built a lateral heterostructure with type-I and II band alignments. Because of the renewal of the BPE technique in materials science, a one-step method including a quick growth of gradients of molybdenum sulfide and oxides along a conductive substrate was proposed.…”

Area‐Step Cyclic Voltammetry for Assessing Local Electrocatalytic Activity of Gradient Materials

“…A potential difference gradient is thus generated along the BPE/electrolyte interface to drive opposite redox reactions at two poles of each single BPE. Over the past years, bipolar electrochemistry has been used to generate material gradients in composition, thickness, structure, particles size, morphology, and wettability . Gradient metals and alloys, such as a structure gradient of Cu crystallites, a size gradient of Au nanovoids, a composition gradient of Ag−Au, Cu−Ni, Cu−Zn, Ni−Zn and Cu−Ni−Zn, have been fabricated for screening highly active SERS substrates, fabricating semiconductor heterostructures, and creating wetting gradients …”

Self-Motion of Water Droplets along a Spacing Gradient of Micropillar Arrays on Copper

“…21 Benefiting from wireless features, bipolar electrochemistry enables controlling electrodes that are mobile in solution, synthesizing and screening novel materials (e.g., Janus objects and composition gradients). 22 The materials deposited on the BPE surface show various gradients in composition, 23−27 thickness, 24 particles size, 28 morphology, 29 microstructure, 19,25 and wettability. 19,30 Some metals, alloys, transition metal compounds, and conducting polymers have been reported to be prepared by bipolar electrochemistry, such as Cu crystallites, 19 Au nanovoids, 28 Ag−Au, 23 Cu−Zn, Ni−Zn and Cu−Ni−Zn, 24 Cu−Ni, 31,32 Ni− Cu−Fe, 33 CdS, 26 MoS x , 34 MoWS x , 35 Mo 2 B 5 and W 2 B 5 , 36 poly(3-methylthiophene), 27 polypyrrole, 37 and poly (3,4ethylenedioxythiophene).…”

“…19,30 Some metals, alloys, transition metal compounds, and conducting polymers have been reported to be prepared by bipolar electrochemistry, such as Cu crystallites, 19 Au nanovoids, 28 Ag−Au, 23 Cu−Zn, Ni−Zn and Cu−Ni−Zn, 24 Cu−Ni, 31,32 Ni− Cu−Fe, 33 CdS, 26 MoS x , 34 MoWS x , 35 Mo 2 B 5 and W 2 B 5 , 36 poly(3-methylthiophene), 27 polypyrrole, 37 and poly (3,4ethylenedioxythiophene). 38 The as-prepared materials may be used as SERS substrates, 23,28 semiconductor heterostructures, 25 electrocatalysts, 31−36 material screening, 37 and gradient wetting surfaces. 19,30,37 The wireless feature of BPEs allows breaking through the limitations of size, shape, and number of electrodes.…”

“…The materials deposited on the BPE surface show various gradients in composition, − thickness, particles size, morphology, microstructure, , and wettability. , Some metals, alloys, transition metal compounds, and conducting polymers have been reported to be prepared by bipolar electrochemistry, such as Cu crystallites, Au nanovoids, Ag–Au, Cu–Zn, Ni–Zn and Cu–Ni–Zn, Cu–Ni, , Ni–Cu–Fe, CdS, MoS x , MoWS x , Mo 2 B 5 and W 2 B 5 , poly­(3-methylthiophene), polypyrrole, and poly­(3,4-ethylene­dioxythiophene) . The as-prepared materials may be used as SERS substrates, , semiconductor heterostructures, electrocatalysts, − material screening, and gradient wetting surfaces. ,, …”