Recent research process on perovskite photodetectors: A review for photodetector—materials, physics, and applications<xref rid="cpb_27_12_127806fn1" ref-type="fn">*</xref><fn id="cpb_27_12_127806fn1"><label>*</label><p>Project supported by the International Cooperation and Exchange Project of Jilin Province, China (Grant Nos. 20170414002GH and 20180414001GH).</p></fn>

Recent research process on perovskite photodetectors: A review for photodetector—materials, physics, and applications**

Project supported by the International Cooperation and Exchange Project of Jilin Province, China (Grant Nos. 20170414002GH and 20180414001GH).

Zhao Yan, Li Chenglong, Shen Liang^†

(color online) (a) Device structure of the CH₃NH₃PbI₃ photodetector. (b) Energy diagram of the CH₃NH₃PbI₃ photodetector at reverse bias under illumination. (c) Absorption spectrum (solid line) of the CH₃NH₃PbI₃ films and wavelength-dependent gain (solid lines with symbols) of the CH₃NH₃PbI₃ devices under reverse biases between 0 V to −1 V. (d) Photo- and dark-current density–voltage curves of the CH₃NH₃PbI₃ device (from Ref. [16]).