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Single-crystalline CdS nanobelts for excellent field-emitters and ultrahigh quantum-efficiency photodetectors

Journal Article


Abstract


  • The single crystalline CdS nanobelts were synthesized by an improved vapor-liquid-solid (VLS) process. Field emission measurements show that the nanostructures have a low turn-on field of 3.7 V&m-1 at a current density of 10 ��A cm-1, a low threshold field of 9.3 V ��m cm-1 and a high enhancement factor of 1298. When assembled into nanoscale visible light photodetectors, the CdS nanobelts showed good sensitivity and wavelength selectivity. The results imply that the present CdS nanobelts are excellent candidates for applications in high-performance field emitters and photodetectors.

Publication Date


  • 2010

Citation


  • Li, L., Wu, P. C., Fang, X. S., Zhai, T. Y., Dai, L., Liao, M. Y., . . . Colberg, D. (2010). Single-crystalline CdS nanobelts for excellent field-emitters and ultrahigh quantum-efficiency photodetectors. Advanced Materials, 22(29), 3161-3165. doi:10.1002/adma.201000144

Scopus Eid


  • 2-s2.0-79952032754

Start Page


  • 3161

End Page


  • 3165

Volume


  • 22

Issue


  • 29

Place Of Publication


Abstract


  • The single crystalline CdS nanobelts were synthesized by an improved vapor-liquid-solid (VLS) process. Field emission measurements show that the nanostructures have a low turn-on field of 3.7 V&m-1 at a current density of 10 ��A cm-1, a low threshold field of 9.3 V ��m cm-1 and a high enhancement factor of 1298. When assembled into nanoscale visible light photodetectors, the CdS nanobelts showed good sensitivity and wavelength selectivity. The results imply that the present CdS nanobelts are excellent candidates for applications in high-performance field emitters and photodetectors.

Publication Date


  • 2010

Citation


  • Li, L., Wu, P. C., Fang, X. S., Zhai, T. Y., Dai, L., Liao, M. Y., . . . Colberg, D. (2010). Single-crystalline CdS nanobelts for excellent field-emitters and ultrahigh quantum-efficiency photodetectors. Advanced Materials, 22(29), 3161-3165. doi:10.1002/adma.201000144

Scopus Eid


  • 2-s2.0-79952032754

Start Page


  • 3161

End Page


  • 3165

Volume


  • 22

Issue


  • 29

Place Of Publication