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) Molecular structure of aP_n-used to test the origin of the low dark current. (b) Dark current density–voltage curves for PC₇₁BM-, aP_n-, and cP₄-based photodetectors. (c) Specific detectivity spectra for cP₄-, aP_n-, and PC₇₁BM-based OPDs calculated at −0.1-V bias voltage (from Ref. [20]).