InP/InAsP Nanowire-Based Spatially Separate Absorption and Multiplication Avalanche Photodetectors

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InP/InAsP Nanowire-Based Spatially Separate Absorption and Multiplication Avalanche Photodetectors

Jain, Vishal (author): Högskolan i Halmstad,Halmstad University,Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Tillämpad matematik och fysik (MPE-lab),Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanovetenskap

Heurlin, Magnus (author): Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanometerkonsortiet

Barrigon, Enrique (author): Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanometerkonsortiet

Bosco, Lorenzo (author): Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanometerkonsortiet

Nowzari, Ali (author): Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Solid State Physics and NanoLund, Lund University, Lund, Sweden

Shroff, Shishir (author): Solid State Physics and NanoLund, Lund University, Lund, Sweden

Boix, Virginia (author): Solid State Physics and NanoLund, Lund University, Lund, Sweden

Karimi, Mohammad (author): Högskolan i Halmstad,Halmstad University,Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Tillämpad matematik och fysik (MPE-lab),Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanovetenskap

Jam, Reza J. (author): Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanometerkonsortiet

Berg, Alexander (author): Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanometerkonsortiet

Samuelson, Lars (author): Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanometerkonsortiet

Borgström, Magnus T. (author): Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Solid State Physics and NanoLund, Lund University, Lund, Sweden,Nanometerkonsortiet

Capasso, Federico (author): School of Engineering and Applied Sciences, Harvard University, Cambridge, United States,Nanophotonics

Pettersson, Håkan (author): Högskolan i Halmstad,Halmstad University,Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Tillämpad matematik och fysik (MPE-lab),Solid State Physics and NanoLund, Lund University, Lund, Sweden

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2017-10-19
2017
English 6 s.
In: ACS Photonics. - Washington : American Chemical Society (ACS). - 2330-4022. ; 4:11, s. 2693-2698

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Journal article (peer-reviewed)

Abstract Subject headings

Avalanche photodetectors (APDs) are key components in optical communication systems due to their increased photocurrent gain and short response time as compared to conventional photodetectors. A detector design where the multiplication region is implemented in a large band gap material is desired to avoid detrimental Zener tunneling leakage currents, a concern otherwise in smaller band gap materials required for absorption at 1.3/1.55 μm. Self-assembled III-V semiconductor nanowires offer key advantages such as enhanced absorption due to optical resonance effects, strain-relaxed heterostructures, and compatibility with mainstream silicon technology. Here, we present electrical and optical characteristics of single InP and InP/InAsP nanowire APD structures. Temperature-dependent breakdown characteristics of p+-n-n+ InP nanowire devices were investigated first. A clear trap-induced shift in breakdown voltage was inferred from I-V measurements. An improved contact formation to the p+-InP segment was observed upon annealing, and its effect on breakdown characteristics was investigated. The band gap in the absorption region was subsequently varied from pure InP to InAsP to realize spatially separate absorption and multiplication APDs in heterostructure nanowires. In contrast to the homojunction APDs, no trap-induced shifts were observed for the heterostructure APDs. A gain of 12 was demonstrated for selective optical excitation of the InAsP segment. Additional electron-beam-induced current measurements were carried out to investigate the effect of local excitation along the nanowire on the I-V characteristics. Simulated band profiles and electric field distributions support our interpretation of the experiments. Our results provide important insight for optimization of avalanche photodetector devices based on III-V nanowires.

Subject headings

TEKNIK OCH TEKNOLOGIER -- Nanoteknik -- Nanoteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Nano-technology -- Nano-technology (hsv//eng)
NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Keyword

avalanche photodetectors
nanowires
punch-through
SAM APDs
EU Horizon 2020
NEXTNANOCELLS
Grant 656208
avalanche photodetectors

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By the author/editor: Jain, Vishal; Heurlin, Magnus; Barrigon, Enriqu ...; Bosco, Lorenzo; Nowzari, Ali; Shroff, Shishir; show more...; Boix, Virginia; Karimi, Mohammad; Jam, Reza J.; Berg, Alexander; Samuelson, Lars; Borgström, Magnu ...; Capasso, Federic ...; Pettersson, Håka ...; show less...

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Nano technology; and Nano technology

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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By the university: Lund University; Halmstad University

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