2019
DOI: 10.1039/c9tc01309a
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Single-crystalline lead halide perovskite wafers for high performance photodetectors

Abstract: A single crystalline perovskite thin wafer is prepared using the seed-induced crystallization method and its photodetection on/off current ratio is 4.3 thousand.

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Cited by 43 publications
(33 citation statements)
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“…However, the aspect ratios of these macroscale single crystals had been about unity depending on the isotropous growth rate in solution. Therefore, methods based on space-confine [4,[46][47][48][49][50], mechanical cutting [48], surface tension [51] and microjetting [52] have been introduced to grow perovskite crystals with large scale. However, the SC-TFs made by these methods are with limited aspect ratio.…”
Section: Introductionmentioning
confidence: 99%
“…However, the aspect ratios of these macroscale single crystals had been about unity depending on the isotropous growth rate in solution. Therefore, methods based on space-confine [4,[46][47][48][49][50], mechanical cutting [48], surface tension [51] and microjetting [52] have been introduced to grow perovskite crystals with large scale. However, the SC-TFs made by these methods are with limited aspect ratio.…”
Section: Introductionmentioning
confidence: 99%
“…Lead‐halide perovskite has tunable direct bandgap, high light absorption coefficient, high carrier mobility, balanced carrier transmission distance, etc., making it a promising candidate in fields of solar cells, photodetectors, LEDs, and lasers. [ 140–147 ] Compared with the widely studied photodetectors based on organic–inorganic lead‐halide perovskite, [ 56,148–150 ] all‐inorganic lead‐halide perovskite‐based photodetectors are more stable, which have been rapidly sprouted. [ 15–18 ] In 2013, Zhou et al.…”
Section: Research Status Of Msm‐pdsmentioning
confidence: 99%
“…Gao and co‐workers used a SC perovskite without grain boundaries to promote the overall performance parameters. [ 70 ] They combined space‐confined growth with seed‐induced crystallization methods to fabricate a 10 mm sized SC wafer. Based on this SC wafer, the detector exhibited high performance with a large LDR of 119 dB, an EQE of 904%, a responsivity of 3.87 A W −1 , and a detectivity of 1.77 × 10 13 Jones ( Figure a–d).…”
Section: Photodetectorsmentioning
confidence: 99%