| Autor: |
Corletto, Alexander, Myagmarsereejid, Purevlkham, Wang, Shifan, Yan, Wei, Balendhran, Sivacarendran, Liu, Huan, Zhong, Yu Lin, Crozier, Kenneth B., Batmunkh, Munkhbayar, Bullock, James |
| Předmět: |
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| Zdroj: |
Advanced Science; 9/18/2024, Vol. 11 Issue 35, p1-12, 12p |
| Abstrakt: |
Bulk black phosphorous (bP) exhibits excellent infrared (IR) optoelectronic properties, but most reported bP IR photodetectors are fabricated from single exfoliated flakes with lateral sizes of < 100 µm. Here, scalable thin films of bP suitable for IR photodetector arrays are realized through a tailored solution‐deposition method. The properties of the bP film and their protective capping layers are optimized to fabricate bP IR photoconductors exhibiting specific detectivities up to 4.0 × 108 cm Hz1/2 W−1 with fast 30/60 µs rise/fall times under λ = 2.2 µm illumination. The scalability of the bP thin film fabrication is demonstrated by fabricating a linear array of 25 bP photodetectors and obtaining 25 × 25 pixel IR images at ≈203 ppi with good spatial fidelity. This research demonstrates a commercially viable method of fabricating scalable bP thin films for optoelectronic devices including room temperature‐operable IR photodetector arrays. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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