Guo Nan. Infrared Photodetectors Based on Low-Dimensional Materials

Springer, 2018. — 61 p. — (Series: Springer Theses). — ISBN: 978-981-13-2838-1.Doctoral Thesis accepted by the University of Chinese Academy of Sciences, Beijing, China.
Infrared photodetectors, which turn the invisible infrared radiant energy into easily measurable electric signals, are widely used in many fi elds, such as spectroscopy, night vision and object recognition. However, its development still faces many problems. The traditional response mechanisms cannot provide better device performance, which requires new materials and physical mechanisms. In recent years, the emergence of low-dimensional materials with unique properties, such as high carrier mobility, tunable bandgap, easy combination between different materials without lattice mismatch, provides new prospects to enhancing the performance of infrared photodetectors.
This book is focused on the study of physical mechanisms and device design for achieving high-performance infrared photodetection based on low-dimensional materials. Through theory analysis, material characterization and photo-electric measurements, it provides solutions to the trade-off problems which are commonly encountered in traditional infrared photodetectors and presents novel methods to improve the responsivity, detectivity and response speed. Researchers and scientists in the field of opto-electronic device can benefit from the book.
Nominated as an outstanding PhD thesis by the University of Chinese Academy of Sciences.
Provides a new type of photodetector with hybrid structure to surpass existing limitations in sensitivity.
Presents reliable experimental methods to develop a multispectral active infrared imaging.