Room Temperature Photon Detectors provides an overview of the performance of emerging new generation of room temperature photodetectors generally called low-dimensional solid (LDS) photodetectors among which the most important are two-dimensional (2D) materials, perovskites, and quantum dots (QDs)/nanowires (NWs) operating in a wide spectral range from the ultraviolet (UV), visible (VIS), far infrared (FIR) to terahertz (THz). The LDS reported performance at room temperature is even better than that presented for standard commercial photodetectors. This book describes the peculiarities of the physical properties of LDS materials and their impact on the photodetectors' performance. It also undertakes a comprehensive analysis of these performances when confronted with the standard photodetectors dominating the global market. Currently, intensive efforts are being made to reduce the cost of imaging systems and, in particular in the infrared (IR) range, to increase their operating temperature by reducing size, weight and power consumption (SWaP). This raises the question of whether the emergence of a new generation of LDS photodetectors will result in their rapid commercialization and serious competition for the standardized bulk photodetectors. This book attempts to answer those issues/questions. Features • Defines the importance of LDS photodetectors in the broad group of standard UV, VIS, IR, and THz photodetectors, and includes their advantages/disadvantages • Covers different types of photodetectors, including the relevant aspects of theory, types of materials, their physical properties, and detector fabrication • Provides invaluable resource for graduate students in physics and engineering, as well as a guide for those already working with sensors and systems, thermal imaging, remote sensing, optical telecommunications, and light detection.