Preparation of a silicon heterojunction photodetector from colloidal indium oxide nanoparticles

作者：Ismail Raid A^*; Ali Abdulrahman K; Hassoon Khaleel I

来源：Optics and Laser Technology, 2013, 51: 1-4.

DOI：10.1016/j.optlastec.2013.03.008

• Laser ablation
• Indium nanoparticles
• Heterojunction

A colloidal indium oxide (In2O3) nanoparticles (NPs) were synthesized by using a Q-switched Nd:YAG laser ablation of indium target in water at room temperature. Optical absorption and x-ray diffraction (XRD) investigation of the prepared samples confirm the formation of In2O3 NPs. A solution-processed silicon heterojunction photodetector, fabricated by drop cast film of colloidal In2O3 NPs onto n-type single crystal silicon wafer, is demonstrated. characteristics of In2O3 NPs/Si heterojunction under dark and illumination conditions confirmed the rectifying behavior and the good photoresponse. The built-in-voltage was determined from the C-V measurements which revealed an abrupt junction.

• 出版日期2013-10