Physical and Materials Chemistry Division, National Chemical Laboratory, Dr Homi Bhabha Road, Pune, India.
Nanoscale. 2011 Nov;3(11):4706-12. doi: 10.1039/c1nr10665a. Epub 2011 Oct 14.
Cu(2)O nanoneedles are synthesized on a copper substrate by a simple anodization and reducing ambient annealing protocol. ZnO nanorods are grown on ITO coated glass by a low temperature chemical route. The electronic and photo-response properties of the p-Cu(2)O/n-ZnO flip-chip heterojunction are then studied and analyzed. We show that the I-V characteristic is rectifying and the junction exhibits a good photoresponse (∼120% under 1 V reverse bias) under AM 1.5 (1 Sun) illumination. This nano-heterojunction photo-response is far stronger as compared to that of a pulsed laser deposited thin film p-Cu(2)O/n-ZnO heterojunction, which can be attributed to higher junction area in the former case.
通过简单的阳极氧化和还原环境退火协议，在铜基底上合成了 Cu（2）O 纳米针。通过低温化学途径在 ITO 镀膜玻璃上生长了 ZnO 纳米棒。然后研究和分析了 p-Cu（2）O/n-ZnO 倒装芯片异质结的电子和光电响应特性。我们表明，I-V 特性是整流的，并且在 AM 1.5（1 太阳）照射下，结在 1V 反向偏压下表现出良好的光电响应（约 120%）。与脉冲激光沉积的 p-Cu（2）O/n-ZnO 异质结相比，这种纳米异质结的光电响应要强得多，这可以归因于前者中结面积更大。
