A novel solution-processed hybrid perovskite photodetector has been developed, demonstrating high detectivity, a wide dynamic range, and fast response. The photodetectors operate at room temperature and exhibit a detectivity approaching $10^{14}$ Jones, a linear dynamic range over 100 dB, and a 3-dB bandwidth up to 3 MHz. These performance metrics surpass those of most organic, quantum dot, and hybrid photodetectors, and are comparable to or better than traditional inorganic semiconductor-based photodetectors. The hybrid perovskite material, with its high external quantum efficiency and low defect density, is ideal for photodetector applications. The photodetectors were fabricated using an 'inverted' device configuration with a hole-blocking layer to reduce dark current and enhance detectivity. The devices show low noise currents, a large dynamic range, and fast response times, with detectivity values up to $8 \times 10^{13}$ Jones at -100 mV and $4 \times 10^{14}$ Jones at 0 mV. The high detectivity is attributed to the low dark current and excellent optical and electronic properties of the perovskite material. The photodetectors also exhibit a linear dynamic range of over 100 dB and a fast transient response, with rise and decay times of less than 200 ns. The results indicate that perovskite materials are promising candidates for low-cost, high-performance photodetectors.A novel solution-processed hybrid perovskite photodetector has been developed, demonstrating high detectivity, a wide dynamic range, and fast response. The photodetectors operate at room temperature and exhibit a detectivity approaching $10^{14}$ Jones, a linear dynamic range over 100 dB, and a 3-dB bandwidth up to 3 MHz. These performance metrics surpass those of most organic, quantum dot, and hybrid photodetectors, and are comparable to or better than traditional inorganic semiconductor-based photodetectors. The hybrid perovskite material, with its high external quantum efficiency and low defect density, is ideal for photodetector applications. The photodetectors were fabricated using an 'inverted' device configuration with a hole-blocking layer to reduce dark current and enhance detectivity. The devices show low noise currents, a large dynamic range, and fast response times, with detectivity values up to $8 \times 10^{13}$ Jones at -100 mV and $4 \times 10^{14}$ Jones at 0 mV. The high detectivity is attributed to the low dark current and excellent optical and electronic properties of the perovskite material. The photodetectors also exhibit a linear dynamic range of over 100 dB and a fast transient response, with rise and decay times of less than 200 ns. The results indicate that perovskite materials are promising candidates for low-cost, high-performance photodetectors.