Large scale fabrication of well-aligned CdS/p-Si shell/core nanowire arrays for photodetectors using solution methods

Literature Information

Publication Date 2015-06-10
DOI 10.1039/C5CP00679A
Impact Factor 3.676
Authors

Yurong Jiang, Chen Li, Weiwei Cao, Yanrong Jiang, Shuying Shang, Congxin Xia


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Abstract

We report a facile approach for the preparation of the vertically aligned, large scale CdS/p-Si shell/core nanowire heterojunction arrays based on successive ionic layer adsorption and reaction deposition. The results indicate that the rectifying characteristics of CdS/Si shell/core nanowire arrays can be tailored by changing the number of SILAR cycles, and the CdS/Si shell–core nanowire heterojunctions have good photo-sensitivity (the ratio of photocurrent to dark current could reach 14.96 at −1 V reverse bias) under AM 1.5 (1 Sun) illumination. Furthermore, the electron transport mechanism across the CdS/Si nano-heterojunctions is also discussed in detail. This reported CdS/p-Si shell/core nanowire structure offers a generic approach for the integration of new functional materials for photo-electronics applications.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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