Omnidirectional Harvesting of Weak Light Using a Graphene Quantum Dot-Modified Organic/Silicon Hybrid Device

Handle URI:
http://hdl.handle.net/10754/623446
Title:
Omnidirectional Harvesting of Weak Light Using a Graphene Quantum Dot-Modified Organic/Silicon Hybrid Device
Authors:
Tsai, Meng-Lin ( 0000-0002-9894-1006 ) ; Tsai, Dung-Sheng; Tang, Libin; Chen, Lih-Juann; Lau, Shu Ping; He, Jr-Hau ( 0000-0003-1886-9241 )
Abstract:
Despite great improvements in traditional inorganic photodetectors and photovoltaics, more progress is needed in the detection/collection of light at low-level conditions. Traditional photodetectors tend to suffer from high noise when operated at room temperature; therefore, these devices require additional cooling systems to detect weak or dim light. Conventional solar cells also face the challenge of poor light-harvesting capabilities in hazy or cloudy weather. The real world features such varying levels of light, which makes it important to develop strategies that allow optical devices to function when conditions are less than optimal. In this work, we report an organic/inorganic hybrid device that consists of graphene quantum dot-modified poly(3,4-ethylenedioxythiophene) polystyrenesulfonate spin-coated on Si for the detection/harvest of weak light. The hybrid configuration provides the device with high responsivity and detectability, omnidirectional light trapping, and fast operation speed. To demonstrate the potential of this hybrid device in real world applications, we measured near-infrared light scattered through human tissue to demonstrate noninvasive oximetric photodetection as well as characterized the device's photovoltaic properties in outdoor (i.e., weather-dependent) and indoor weak light conditions. This organic/inorganic device configuration demonstrates a promising strategy for developing future high-performance low-light compatible photodetectors and photovoltaics.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Tsai M-L, Tsai D-S, Tang L, Chen L-J, Lau SP, et al. (2017) Omnidirectional Harvesting of Weak Light Using a Graphene Quantum Dot-Modified Organic/Silicon Hybrid Device. ACS Nano. Available: http://dx.doi.org/10.1021/acsnano.6b08567.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Nano
Issue Date:
21-Apr-2017
DOI:
10.1021/acsnano.6b08567
Type:
Article
ISSN:
1936-0851; 1936-086X
Sponsors:
This research was supported by KAUST baseline funding, the Research Grants Council of Hong Kong (Project no. PolyU 153012/14P) and National Natural Science Foundation of China (NSFC grant no. 11374250).
Additional Links:
http://pubs.acs.org/doi/full/10.1021/acsnano.6b08567
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorTsai, Meng-Linen
dc.contributor.authorTsai, Dung-Shengen
dc.contributor.authorTang, Libinen
dc.contributor.authorChen, Lih-Juannen
dc.contributor.authorLau, Shu Pingen
dc.contributor.authorHe, Jr-Hauen
dc.date.accessioned2017-05-09T12:54:46Z-
dc.date.available2017-05-09T12:54:46Z-
dc.date.issued2017-04-21en
dc.identifier.citationTsai M-L, Tsai D-S, Tang L, Chen L-J, Lau SP, et al. (2017) Omnidirectional Harvesting of Weak Light Using a Graphene Quantum Dot-Modified Organic/Silicon Hybrid Device. ACS Nano. Available: http://dx.doi.org/10.1021/acsnano.6b08567.en
dc.identifier.issn1936-0851en
dc.identifier.issn1936-086Xen
dc.identifier.doi10.1021/acsnano.6b08567en
dc.identifier.urihttp://hdl.handle.net/10754/623446-
dc.description.abstractDespite great improvements in traditional inorganic photodetectors and photovoltaics, more progress is needed in the detection/collection of light at low-level conditions. Traditional photodetectors tend to suffer from high noise when operated at room temperature; therefore, these devices require additional cooling systems to detect weak or dim light. Conventional solar cells also face the challenge of poor light-harvesting capabilities in hazy or cloudy weather. The real world features such varying levels of light, which makes it important to develop strategies that allow optical devices to function when conditions are less than optimal. In this work, we report an organic/inorganic hybrid device that consists of graphene quantum dot-modified poly(3,4-ethylenedioxythiophene) polystyrenesulfonate spin-coated on Si for the detection/harvest of weak light. The hybrid configuration provides the device with high responsivity and detectability, omnidirectional light trapping, and fast operation speed. To demonstrate the potential of this hybrid device in real world applications, we measured near-infrared light scattered through human tissue to demonstrate noninvasive oximetric photodetection as well as characterized the device's photovoltaic properties in outdoor (i.e., weather-dependent) and indoor weak light conditions. This organic/inorganic device configuration demonstrates a promising strategy for developing future high-performance low-light compatible photodetectors and photovoltaics.en
dc.description.sponsorshipThis research was supported by KAUST baseline funding, the Research Grants Council of Hong Kong (Project no. PolyU 153012/14P) and National Natural Science Foundation of China (NSFC grant no. 11374250).en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/full/10.1021/acsnano.6b08567en
dc.subjectHybriden
dc.subjectweak lighten
dc.subjectPedot:pssen
dc.subjectGraphene Quantum Dotsen
dc.subjectOmnidirectionalen
dc.titleOmnidirectional Harvesting of Weak Light Using a Graphene Quantum Dot-Modified Organic/Silicon Hybrid Deviceen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalACS Nanoen
dc.contributor.institutionInstitute of Photonics and Optoelectronics & Department of Electrical Engineering, National Taiwan University , Taipei 10617, Taiwan, Republic of China.en
dc.contributor.institutionDepartment of Applied Physics, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong SAR.en
dc.contributor.institutionDepartment of Materials Science and Engineering, National Tsing Hua University , Hsinchu 30013, Taiwan, Republic of China.en
kaust.authorTsai, Meng-Linen
kaust.authorHe, Jr-Hauen
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