Fig. 8From: Vacuum-ultraviolet photodetectorsPerformance improvement (response speed and open-circuit voltage) and array demonstration of heterojunction photovoltaic VUV photodetectors. a Schematic diagram of temporal- and tempratural-dependent photoresponse measurement of the device under VUV nanosecond pulses, where the device is in parallel with a resistor (1 GΩ) and an oscilloscope [113]. b Temperature-dependent short-circuit photocurrent and decay time at the bias of 0 V [113]. c Open-circuit voltages of four types of devices. Error bars represent s.d. from three independent devices [114]. d Diagram of the VUV imaging test for line array device and result of the device’s line scanning [115]Back to article page