Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold
We evaluate the limiting efficiency of full and partial solar spectrum harvesting via the process of internal photoemission in Au-semiconductor Schottky junctions. Our results based on the ab initio calculations of the electron density of states (e-DOS) reveal that the limiting efficiency of the ful...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
SPIE
2017
|
| Online Access: | http://hdl.handle.net/1721.1/107779 https://orcid.org/0000-0002-9872-5688 https://orcid.org/0000-0002-3968-8530 |
| _version_ | 1826195959635247104 |
|---|---|
| author | Hsu, Wei-Chun Liao, Bolin Boriskina, Svetlana V Zhou, Jiawei Chen, Gang |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Hsu, Wei-Chun Liao, Bolin Boriskina, Svetlana V Zhou, Jiawei Chen, Gang |
| author_sort | Hsu, Wei-Chun |
| collection | MIT |
| description | We evaluate the limiting efficiency of full and partial solar spectrum harvesting via the process of internal photoemission in Au-semiconductor Schottky junctions. Our results based on the ab initio calculations of the electron density of states (e-DOS) reveal that the limiting efficiency of the full-spectrum Au converter based on hot electron injection is below 4%. This value is even lower than previously established limit based on the parabolic approximation of the Au electron energy bands. However, we predict limiting efficiency exceeding 10% for the hot holes collection through the Schottky junction between Au and p-type semiconductor. Furthermore, we demonstrate that such converters have more potential if used as a part of the hybrid system for harvesting high- and low-energy photons of the solar spectrum. |
| first_indexed | 2024-09-23T10:18:33Z |
| format | Article |
| id | mit-1721.1/107779 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:18:33Z |
| publishDate | 2017 |
| publisher | SPIE |
| record_format | dspace |
| spelling | mit-1721.1/1077792022-09-30T20:18:01Z Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold Hsu, Wei-Chun Liao, Bolin Boriskina, Svetlana V Zhou, Jiawei Chen, Gang Massachusetts Institute of Technology. Department of Mechanical Engineering Boriskina, Svetlana V Zhou, Jiawei Chen, Gang We evaluate the limiting efficiency of full and partial solar spectrum harvesting via the process of internal photoemission in Au-semiconductor Schottky junctions. Our results based on the ab initio calculations of the electron density of states (e-DOS) reveal that the limiting efficiency of the full-spectrum Au converter based on hot electron injection is below 4%. This value is even lower than previously established limit based on the parabolic approximation of the Au electron energy bands. However, we predict limiting efficiency exceeding 10% for the hot holes collection through the Schottky junction between Au and p-type semiconductor. Furthermore, we demonstrate that such converters have more potential if used as a part of the hybrid system for harvesting high- and low-energy photons of the solar spectrum. United States. Department of Energy (DE-SC0001299) United States. Department of Energy (DE-FG02-09ER46577) 2017-03-30T16:10:00Z 2017-03-30T16:10:00Z 2015-09 2015-08 Article http://purl.org/eprint/type/ConferencePaper 0277-786X 1996-756x http://hdl.handle.net/1721.1/107779 Boriskina, Svetlana V., Jiawei Zhou, Wei-Chun Hsu, Bolin Liao, and Gang Chen. “Limiting Efficiencies of Solar Energy Conversion and Photo-Detection via Internal Emission of Hot Electrons and Hot Holes in Gold.” Edited by Marija Strojnik Scholl and Gonzalo Páez. Infrared Remote Sensing and Instrumentation XXIII (September 1, 2015). © 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) https://orcid.org/0000-0002-9872-5688 https://orcid.org/0000-0002-3968-8530 en_US http://dx.doi.org/10.1117/12.2189678 Proceedings of SPIE--the Society of Photo-Optical Instrumentation Engineers Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf SPIE SPIE |
| spellingShingle | Hsu, Wei-Chun Liao, Bolin Boriskina, Svetlana V Zhou, Jiawei Chen, Gang Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold |
| title | Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold |
| title_full | Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold |
| title_fullStr | Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold |
| title_full_unstemmed | Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold |
| title_short | Limiting efficiencies of solar energy conversion and photo-detection via internal emission of hot electrons and hot holes in gold |
| title_sort | limiting efficiencies of solar energy conversion and photo detection via internal emission of hot electrons and hot holes in gold |
| url | http://hdl.handle.net/1721.1/107779 https://orcid.org/0000-0002-9872-5688 https://orcid.org/0000-0002-3968-8530 |
| work_keys_str_mv | AT hsuweichun limitingefficienciesofsolarenergyconversionandphotodetectionviainternalemissionofhotelectronsandhotholesingold AT liaobolin limitingefficienciesofsolarenergyconversionandphotodetectionviainternalemissionofhotelectronsandhotholesingold AT boriskinasvetlanav limitingefficienciesofsolarenergyconversionandphotodetectionviainternalemissionofhotelectronsandhotholesingold AT zhoujiawei limitingefficienciesofsolarenergyconversionandphotodetectionviainternalemissionofhotelectronsandhotholesingold AT chengang limitingefficienciesofsolarenergyconversionandphotodetectionviainternalemissionofhotelectronsandhotholesingold |