Journal
NANO LETTERS
Volume 12, Issue 12, Pages 6448-6452Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl303837y
Keywords
Nanopillar; impact ionization; core-shell; avalanche gain; dead space; surface plasmons
Categories
Funding
- NSF [ECCS-1202591, DMR-1007051, Smart Lighting ERC: EEC-0812056]
- AFOSR [FA9550-12-1-0052, FA9550-08-1-0198]
- DoD [N00244-09-1-0034]
- Direct For Mathematical & Physical Scien [1007051] Funding Source: National Science Foundation
- Directorate For Engineering [1202591] Funding Source: National Science Foundation
- Division Of Materials Research [1007051] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys [1202591] Funding Source: National Science Foundation
Ask authors/readers for more resources
We demonstrate a nanopillar (NP) device structure for implementing plasmonically enhanced avalanche photodetector arrays with thin avalanche volumes (similar to 310 nm X 150 nm X 150 nm). A localized 3D electric field due to a core shell PN junction in a NP acts as a multiplication region, while efficient light absorption takes place via surface plasmon polariton Bloch wave (SPP-BW) modes due to a self-aligned metal nanohole lattice. Avalanche gains of similar to 216 at 730 nm at 12 V are obtained. We show through capacitance-voltage characterization, temperature-dependent breakdown measurements, and detailed device modeling that the avalanche region is on the order of the ionization path length, such that dead-space effects become significant. This work presents a clear path toward engineering dead space effects in thin 3D-confined multiplication regions for high performance avalanche detectors for applications in telecommunications, sensing and single photon detection.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available