1
|
Polumati G, Kolli CSR, Flores M, Kumar A, Sanghvi A, Bugallo ADL, Sahatiya P. Mixed-Dimensional van der Waals Heterostructure (2D ReS 2/0D MoS 2 Quantum Dots)-Based Broad Spectral Range with Ultrahigh-Responsive Photodetector. ACS APPLIED MATERIALS & INTERFACES 2024; 16:19261-19270. [PMID: 38588397 DOI: 10.1021/acsami.4c02295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
The remarkable properties of two-dimensional (2D) materials have led to significant advancements in photodetection and optoelectronics research. Currently, there are many successful methods that are employed to improve the responsivity of photodetectors, but the limited spectral range of the device remains a limitation. This work demonstrates the development of a mixed-dimensional (2D/0D) hybrid photodetector device fabricated using chemical vapor deposition (CVD)-grown monolayer ReS2 and solution-processed MoS2 quantum dots (QDs). The mixed dimensionality of 2D (ReS2) and zero-dimensional (0D) MoS2 QDs assist in improving the spectral range of the device [ultraviolet (360 nm) to near-infrared (780 nm)]. Further, due to the work function difference between ReS2 and MoS2 QDs, the built-in electric field across the mixed-dimensional interface promotes effective charge separation and migration, resulting in improved responsivities of the device. The calculated responsivities of the fabricated photodetector are 5.4 × 102, 3.3 × 102, and 2.6 × 102 A/W when subjected to visible, UV, and NIR light illumination, which is remarkable when compared to the existing reports on broadband photodetection. The mixed-dimensionality heterostructure coupled with contact engineering paves the way for highly responsive broadband photodetectors for potential applications in security, healthcare, etc.
Collapse
Affiliation(s)
- Gowtham Polumati
- Department of Electrical and Electronics Engineering, BITS Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Chandra Sekhar Reddy Kolli
- Department of Electrical and Electronics Engineering, BITS Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Mario Flores
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, A.P. 1-1010, Querétaro, Qro CP 76000, México
| | - Aayush Kumar
- Department of Electrical and Electronics Engineering, BITS Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Aarnav Sanghvi
- Department of Electrical and Electronics Engineering, BITS Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Andres De Luna Bugallo
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, A.P. 1-1010, Querétaro, Qro CP 76000, México
| | - Parikshit Sahatiya
- Department of Electrical and Electronics Engineering, BITS Pilani, Hyderabad Campus, Hyderabad 500078, India
- Materials Center for Sustainable Energy & Environment, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad 500078, India
| |
Collapse
|
2
|
Tran MH, Nguyen TMH, Bark CW. Toward Industrial Production of a High-Performance Self-Powered Ultraviolet Photodetector Using Nanoporous Al-Doped ZnO Thin Films. ACS OMEGA 2023; 8:35343-35350. [PMID: 37779960 PMCID: PMC10536242 DOI: 10.1021/acsomega.3c05266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/01/2023] [Indexed: 10/03/2023]
Abstract
Al-doped ZnO (AZO) thin films are effective n-type semiconductors for ultraviolet (UV) detection because of their low cost, high electron mobility, and high sensitivity to UV light, especially in the UVA spectrum. However, a reasonable compromise between performance (such as sensitivity, detectivity, and response time) and fabrication ease remains an obstacle to the practicability of AZO-based UV photodetectors. To address this issue, we propose an efficient strategy to achieve a large AZO photoactive area for outstanding performance, along with a facile sol-gel method. Consequently, the device exhibits a superb on/off ratio of >104, a high detectivity of 1.85 × 1012 Jones, and a fast response speed under 365 nm UVA illumination without external energy consumption. Hence, this study suggests a self-powered and high-performance nanoporous AZO-based UVA detector with an environmentally friendly scalable process that satisfies industrial production requirements for numerous practical UV-detection applications.
Collapse
Affiliation(s)
- Manh Hoang Tran
- Department of Electrical
Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, South Korea
| | - Thi My Huyen Nguyen
- Department of Electrical
Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, South Korea
| | - Chung Wung Bark
- Department of Electrical
Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, South Korea
| |
Collapse
|
3
|
Lin S, Habib MA, Burse S, Mandavkar R, Khalid T, Joni MH, Li MY, Kunwar S, Lee J. Hybrid UV Photodetector Design Incorporating AuPt Alloy Hybrid Nanoparticles, ZnO Quantum Dots, and Graphene Quantum Dots. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2204-2215. [PMID: 36563284 DOI: 10.1021/acsami.2c19006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A hybrid device scheme is an attractive strategy in the construction of advanced UV photodetectors due to the flexibility in selecting the components and correspondingly improved optoelectronic properties by the cooperation of various components, which cannot be achieved by a single component device. In this work, a novel hybrid UV photodetector (PD) is demonstrated by adapting AuPt alloy hybrid nanoparticles (AHNPs), ZnO quantum dots (QDs), and graphene quantum dots (GQDs), namely, GQD/ZnO/AHNP PD. The optimized device achieves high-end figure-of-merit performance with a responsivity of 2299 mA/W, detectivity of 7.04 × 1010 jones, and external quantum efficiency of 741%. Enhanced photocurrent can be associated with the hot electron generation around the AuPt AHNPs and swift transfer to the conduction band of ZnO QDs. At the same time, the added carrier injection is achieved by a thin layer of GQDs. High density of hotspots and electromagnetic fields are generated by the strong localized surface plasmon resonance (LSPR) by the uniquely designed AuPt AHNPs with the fully alloyed AuPt NPs and adjacent small background Au NPs. The e-field distribution of various NP configurations is systematically investigated with finite-difference time-domain (FDTD) simulations.
Collapse
Affiliation(s)
- Shusen Lin
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul01897, South Korea
| | - Md Ahasan Habib
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul01897, South Korea
| | - Shalmali Burse
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul01897, South Korea
| | - Rutuja Mandavkar
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul01897, South Korea
| | - Tasmia Khalid
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul01897, South Korea
| | - Mehedi Hasan Joni
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul01897, South Korea
| | - Ming-Yu Li
- School of Science, Wuhan University of Technology, Wuhan, Hubei430070, China
| | - Sundar Kunwar
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul01897, South Korea
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico87545, United States
| | - Jihoon Lee
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul01897, South Korea
| |
Collapse
|
4
|
Lazau C, Nicolaescu M, Orha C, Şerban V, Bandas C. Self-Powered Photodetector Based on FTO/n-TiO2/p-CuMnO2 Transparent Thin Films. MATERIALS 2022; 15:ma15155229. [PMID: 35955163 PMCID: PMC9369718 DOI: 10.3390/ma15155229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/20/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022]
Abstract
A self-powered photodetector with the FTO/n-TiO2/p-CuMnO2 configuration, representing the novelty of the work, was successfully achieved for the first time and presumes two steps: deposition of the n-type semiconductor (TiO2) by the doctor blade method and of the p-type semiconductor (CuMnO2) by the spin coating technique, respectively. Investigation techniques of the structural and morphological characteristics of the as-synthesized heterostructures, such as XRD, UV-VIS analysis, and SEM/EDX and AFM morphologies, were used. The I-t measurements of the photodetector showed that the responsivity in the self-powered mode was 2.84 × 107 A W−1 cm2 and in the 1 V bias mode it was 1.82 × 106 A W−1 cm2. Additionally, a self-powered current of 14.2 nA was generated under UV illumination with an intensity of 0.1 mW/cm2. Furthermore, under illumination conditions, the response time (tres) and the recovery time (trec) of the sensor exhibited a good response; thus, tres = 7.30 s and trec = 0.4 s for the self-powered mode, and in the 1 V bias mode, these were tres = 15.16 s and trec = 2.18 s. The above results show that the transparent heterojunction device of n-TiO2/p-CuMnO2 exhibited a self-powered ultraviolet photodetector with high sensitivity.
Collapse
Affiliation(s)
- Carmen Lazau
- National Institute for Research and Development in Electrochemistry and Condensed Matter Timisoara, 300569 Timisoara, Romania; (C.L.); (M.N.); (C.O.)
| | - Mircea Nicolaescu
- National Institute for Research and Development in Electrochemistry and Condensed Matter Timisoara, 300569 Timisoara, Romania; (C.L.); (M.N.); (C.O.)
- Department of Materials and Manufacturing Engineering, Faculty of Mechanical Engineering, University Politehnica of Timisoara, 300222 Timisoara, Romania;
| | - Corina Orha
- National Institute for Research and Development in Electrochemistry and Condensed Matter Timisoara, 300569 Timisoara, Romania; (C.L.); (M.N.); (C.O.)
| | - Viorel Şerban
- Department of Materials and Manufacturing Engineering, Faculty of Mechanical Engineering, University Politehnica of Timisoara, 300222 Timisoara, Romania;
- Romanian Academy of Technical Sciences, 300223 Timisoara, Romania
| | - Cornelia Bandas
- National Institute for Research and Development in Electrochemistry and Condensed Matter Timisoara, 300569 Timisoara, Romania; (C.L.); (M.N.); (C.O.)
- Correspondence:
| |
Collapse
|
5
|
Panžić I, Capan I, Brodar T, Bafti A, Mandić V. Structural and Electrical Characterization of Pure and Al-Doped ZnO Nanorods. MATERIALS 2021; 14:ma14237454. [PMID: 34885608 PMCID: PMC8658985 DOI: 10.3390/ma14237454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 12/28/2022]
Abstract
Pure and Al-doped (3 at.%) ZnO nanorods were prepared by two-step synthesis. In the first step, ZnO thin films were deposited on silicon wafers by spin coating; then, ZnO nanorods (NR) and Al-doped ZnO NR were grown using a chemical bath method. The structural properties of zincite nanorods were determined by X-ray diffraction (XRD) and corroborated well with the morphologic properties obtained by field-emission gun scanning electron microscopy (FEG SEM) with energy-dispersive X-ray spectroscopy (EDS). Morphology results revealed a minute change in the nanorod geometry upon doping, which was also visible by Kelvin probe force microscopy (KPFM). KPFM also showed preliminary electrical properties. Detailed electrical characterization of pure and Al-doped ZnO NR was conducted by temperature-dependent current–voltage (I–V) measurements on Au/(Al)ZnO NR/n-Si junctions. It was shown that Al doping increases the conductivity of ZnO NR by an order of magnitude. The I–V characteristics of pure and Al-doped ZnO NR followed the ohmic regime for lower voltages, whereas, for the higher voltages, significant changes in electric conduction mechanisms were detected and ascribed to Al-doping. In conclusion, for future applications, one should consider the possible influence of the geometry change of (Al)ZnO NRs on their overall electric transport properties.
Collapse
Affiliation(s)
- Ivana Panžić
- Faculty of Chemical Engineering and Technology, Marulićev trg 20, 10000 Zagreb, Croatia; (I.P.); (A.B.)
| | - Ivana Capan
- Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia; (I.C.); (T.B.)
| | - Tomislav Brodar
- Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia; (I.C.); (T.B.)
| | - Arijeta Bafti
- Faculty of Chemical Engineering and Technology, Marulićev trg 20, 10000 Zagreb, Croatia; (I.P.); (A.B.)
| | - Vilko Mandić
- Faculty of Chemical Engineering and Technology, Marulićev trg 20, 10000 Zagreb, Croatia; (I.P.); (A.B.)
- Correspondence: ; Tel.: +385-1-4597-226
| |
Collapse
|
6
|
Wei C, Xu J, Shi S, Bu Y, Cao R, Chen J, Xiang J, Zhang X, Li L. The improved photoresponse properties of self-powered NiO/ZnO heterojunction arrays UV photodetectors with designed tunable Fermi level of ZnO. J Colloid Interface Sci 2020; 577:279-289. [DOI: 10.1016/j.jcis.2020.05.077] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/09/2020] [Accepted: 05/19/2020] [Indexed: 11/25/2022]
|
7
|
Deka Boruah B. Zinc oxide ultraviolet photodetectors: rapid progress from conventional to self-powered photodetectors. NANOSCALE ADVANCES 2019; 1:2059-2085. [PMID: 36131964 PMCID: PMC9416854 DOI: 10.1039/c9na00130a] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 03/28/2019] [Indexed: 05/14/2023]
Abstract
Currently, the development of ultraviolet (UV) photodetectors (PDs) has attracted the attention of the research community because of the vast range of applications of photodetectors in modern society. A variety of wide-band gap nanomaterials have been utilized for UV detection to achieve higher photosensitivity. Specifically, zinc oxide (ZnO) nanomaterials have attracted significant attention primarily due to their additional properties such as piezo-phototronic and pyro-phototronic effects, which allow the fabrication of high-performance and low power consumption-based UV PDs. This article primarily focuses on the recent development of ZnO nanostructure-based UV PDs ranging from nanomaterials to architectural device design. A brief overview of the photoresponse characteristics of UV PDs and potential ZnO nanostructures is presented. Moreover, the recent development in self-powered PDs and implementation of the piezo-phototronic effect, plasmonic effect and pyro-phototronic effect for performance enhancement is highlighted. Finally, the research perspectives and future research direction related to ZnO nanostructures for next-generation UV PDs are summarized.
Collapse
Affiliation(s)
- Buddha Deka Boruah
- Institute for Manufacturing, Department of Engineering, University of Cambridge UK CB3 0FS
| |
Collapse
|
8
|
Gao Y, Xu J, Shi S, Dong H, Cheng Y, Wei C, Zhang X, Yin S, Li L. TiO 2 Nanorod Arrays Based Self-Powered UV Photodetector: Heterojunction with NiO Nanoflakes and Enhanced UV Photoresponse. ACS APPLIED MATERIALS & INTERFACES 2018; 10:11269-11279. [PMID: 29558104 DOI: 10.1021/acsami.7b18815] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The self-powered ultraviolet photodetectors (UV PDs) have attracted increasing attention due to their potential applications without consuming any external power. It is important to obtain the high-performance self-powered UV PDs by a simple method for the practical application. Herein, TiO2 nanorod arrays (NRs) were synthesized by hydrothermal method, which were integrated with p-type NiO nanoflakes to realize a high performance pn heterojunction for the efficient UV photodetection. TiO x thin film can improve the morphological and carrier transport properties of TiO2 NRs and decrease the surface and defect states, resulting in the enhanced photocurrent of the devices. NiO/TiO2 nanostructural heterojunctions show excellent rectifying characteristics (rectification ratio of 2.52 × 104 and 1.45 × 105 for NiO/TiO2 NRs and NiO/TiO2 NRs/TiO x, respectively) with a very low reverse saturation current. The PDs based on the heterojunctions exhibit good spectral selectivity, high photoresponsivity, and fast response and recovery speeds without external applied bias under the weak light radiation. The devices demonstrate good stability and repeatability under UV light radiation. The self-powered performance could be attributed to the proper built-in electric field of the heterojunction. TiO2 NRs and NiO nanoflakes construct the well-aligned energy-band structure. The enhanced responsivity and detectivity for the devices with TiO x thin films is related to the increased interfacial charge separation efficiency, reduced carrier recombination, and relatively good electron transport of TiO2 NRs.
Collapse
Affiliation(s)
- Yanyan Gao
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin Key Laboratory for Photoelectric Materials and Devices, and National Demonstration Center for Experimental Function Materials Education , Tianjin University of Technology , Tianjin 300384 , China
| | - Jianping Xu
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin Key Laboratory for Photoelectric Materials and Devices, and National Demonstration Center for Experimental Function Materials Education , Tianjin University of Technology , Tianjin 300384 , China
| | - Shaobo Shi
- School of Science , Tianjin University of Technology and Education , Tianjin 300222 , China
| | - Hong Dong
- Department of Electronics and Tianjin Key Laboratory of Photo-Electronic Thin Film Device and Technology , Nankai University , Tianjin 300350 , China
| | - Yahui Cheng
- Department of Electronics and Tianjin Key Laboratory of Photo-Electronic Thin Film Device and Technology , Nankai University , Tianjin 300350 , China
| | - Chengtai Wei
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin Key Laboratory for Photoelectric Materials and Devices, and National Demonstration Center for Experimental Function Materials Education , Tianjin University of Technology , Tianjin 300384 , China
| | - Xiaosong Zhang
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin Key Laboratory for Photoelectric Materials and Devices, and National Demonstration Center for Experimental Function Materials Education , Tianjin University of Technology , Tianjin 300384 , China
| | - Shougen Yin
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin Key Laboratory for Photoelectric Materials and Devices, and National Demonstration Center for Experimental Function Materials Education , Tianjin University of Technology , Tianjin 300384 , China
| | - Lan Li
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin Key Laboratory for Photoelectric Materials and Devices, and National Demonstration Center for Experimental Function Materials Education , Tianjin University of Technology , Tianjin 300384 , China
| |
Collapse
|
9
|
Su L, Yang W, Cai J, Chen H, Fang X. Self-Powered Ultraviolet Photodetectors Driven by Built-In Electric Field. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13. [PMID: 28926681 DOI: 10.1002/smll.201701687] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 07/27/2017] [Indexed: 05/14/2023]
Abstract
Self-powered ultraviolet (UV) photodetectors, which have vast applications in the military and for civilian purposes, have become particularly attractive in recent years due to their advantages of high sensitivity, ultrasmall size, and low power consumption. In particular, self-powered UV photodetectors driven by a built-in electric field cannot only detect UV signals but also be powered by the incident signals instead of external power. In this concept, the key issues and most recent developments on photovoltaic type UV photodetectors driven by p-n homojunction, heterojunction, and Schottky junction are surveyed. This should generate extensive interest in this field and encourage more researchers to engage in and tackle the scientific challenges.
Collapse
Affiliation(s)
- Longxing Su
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Wei Yang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Jian Cai
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Hongyu Chen
- Department of Physics, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| |
Collapse
|
10
|
Trung TQ, Dang VQ, Lee HB, Kim DI, Moon S, Lee NE, Lee H. An Omnidirectionally Stretchable Photodetector Based on Organic-Inorganic Heterojunctions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35958-35967. [PMID: 28948762 DOI: 10.1021/acsami.7b09411] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Omnidirectionally stretchable photodetectors are limited by difficulties in designing material and fabrication processes that enable stretchability in multiaxial directions. Here, we propose a new approach involving an organic-inorganic p-n heterojunction photodetector comprised of free-standing ZnO nanorods grown on a poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate transport layer coated on a three-dimensional micropatterned stretchable substrate containing bumps and valleys. This structure allows for efficient absorption of stretching strain. This approach allows the device to accommodate large tensile strain in all of the directions. The device behaves as a photogated p-n heterojunction photodetector in which current modulation was obtained by sensing the mechanisms that rely on photovoltage and photogating effects. The device exhibits a high photoresponse to UV light and reliable electrical performance under applied stretching in uniaxial and omniaxial directions. Furthermore, the device can be easily and conformally attached to a human wrist. This allowed us to investigate the response of the device to UV light during human activity.
Collapse
Affiliation(s)
| | - Vinh Quang Dang
- Department of Materials Science and Engineering, Korea University , Seongbuk-gu, Anam-ro 145, Seoul 02841, Republic of Korea
| | | | | | - Sungjin Moon
- Department of Materials Science and Engineering, Korea University , Seongbuk-gu, Anam-ro 145, Seoul 02841, Republic of Korea
| | | | - Hoen Lee
- Department of Materials Science and Engineering, Korea University , Seongbuk-gu, Anam-ro 145, Seoul 02841, Republic of Korea
| |
Collapse
|
11
|
Mihalache I, Radoi A, Pascu R, Romanitan C, Vasile E, Kusko M. Engineering Graphene Quantum Dots for Enhanced Ultraviolet and Visible Light p-Si Nanowire-Based Photodetector. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29234-29247. [PMID: 28786288 DOI: 10.1021/acsami.7b07667] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, a significant improvement of the classical silicon nanowire (SiNW)-based photodetector was achieved through the realization of core-shell structures using newly designed GQDPEIs via simple solution processing. The poly(ethyleneimine) (PEI)-assisted synthesis successfully tuned both optical and electrical properties of graphene quantum dots (GQDs) to fulfill the requirements for strong yellow photoluminescence emission along with large band gap formation and the introduction of electronic states inside the band gap. The fabrication of a GQDPEI-based device was followed by systematic structural and photoelectronic investigation. Thus, the GQDPEI/SiNW photodetector exhibited a large photocurrent to dark current ratio (Iph/Idark up to ∼0.9 × 102 under 4 V bias) and a remarkable improvement of the external quantum efficiency values that far exceed 100%. In this frame, GQDPEIs demonstrate the ability to arbitrate both charge-carrier photogeneration and transport inside a heterojunction, leading to simultaneous attendance of various mechanisms: (i) efficient suppression of the dark current governed by the type I alignment in energy levels, (ii) charge photomultiplication determined by the presence of the PEI-induced electron trap levels, and (iii) broadband ultraviolet-to-visible downconversion effects.
Collapse
Affiliation(s)
- Iuliana Mihalache
- National Institute for Research and Development in Microtechnologies (IMT Bucharest) , 126A Erou Iancu Nicolae Street, 72996 Bucharest, Romania
| | - Antonio Radoi
- National Institute for Research and Development in Microtechnologies (IMT Bucharest) , 126A Erou Iancu Nicolae Street, 72996 Bucharest, Romania
| | - Razvan Pascu
- National Institute for Research and Development in Microtechnologies (IMT Bucharest) , 126A Erou Iancu Nicolae Street, 72996 Bucharest, Romania
| | - Cosmin Romanitan
- National Institute for Research and Development in Microtechnologies (IMT Bucharest) , 126A Erou Iancu Nicolae Street, 72996 Bucharest, Romania
- Faculty of Physics, University of Bucharest , P.O. Box MG-11, 077125 Bucharest, Romania
| | - Eugenia Vasile
- National Institute for Research and Development in Microtechnologies (IMT Bucharest) , 126A Erou Iancu Nicolae Street, 72996 Bucharest, Romania
- Faculty of Applied Chemistry and Material Science, University Politehnica of Bucharest , No. 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Mihaela Kusko
- National Institute for Research and Development in Microtechnologies (IMT Bucharest) , 126A Erou Iancu Nicolae Street, 72996 Bucharest, Romania
| |
Collapse
|
12
|
Choi DS, Hansen M, Van Keuren E, Hahm JI. Highly photoresponsive, ZnO nanorod-based photodetector for operation in the visible spectral range. NANOTECHNOLOGY 2017; 28:145203. [PMID: 28281467 DOI: 10.1088/1361-6528/aa6237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
While significant advances have been made for gold nanoparticle (AuNP)-coupled zinc oxide (ZnO) as visibly blind, ultraviolet photodetection devices, very few ZnO nanomaterial systems have been developed specifically for use in the visible wavelength regime. Further efforts to develop ZnO-based visible photodetectors (PDs) are still highly warranted in order to better understand the precise effect of AuNP load, operation wavelength, and beam position on the device output. In this study, we demonstrate significantly enhanced, photoresponse behaviors of AuNP-coupled ZnO nanorod (NR) network devices in the visible wavelength range with their photoresponse capacity comparable to, if not far exceeding, most commercial PDs as well as recently reported, visible, AuNP-coupled ZnO detectors. In addition, the nature and degree of the photoresponsivity enhancement are systematically elucidated by investigating their light-triggered electrical signals under varying incident wavelengths, AuNP amounts, and illumination positions. We discuss a possible photoconduction mechanism of our AuNP-coupled ZnO NR PDs and the origins of the high photoresponsivity. Specifically related to the AuNP amount-dependent photoresponse behaviors, the nanoparticle density yielding photoresponse maxima is explained as the interplay between localized surface plasmon resonance, plasmonic heating, and scattering in our photothermoelectric effect-driven device. We show that the AuNP-coupled ZnO NR PDs can be constructed via a straightforward method without the need for ultrahigh vacuum, sputtering procedures, or photo/electron-beam lithographic tools. Hence, the approach demonstrated in this study may serve as a convenient and viable means to advance the current state of ZnO-based PDs for operation in the visible spectral range with greatly increased photoresponsivity.
Collapse
Affiliation(s)
- Daniel S Choi
- Department of Chemistry, Georgetown University, 37th & O Sts. NW., Washington, DC 20057, United States of America
| | | | | | | |
Collapse
|
13
|
Wang X, Liu K, Chen X, Li B, Jiang M, Zhang Z, Zhao H, Shen D. Highly Wavelength-Selective Enhancement of Responsivity in Ag Nanoparticle-Modified ZnO UV Photodetector. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5574-5579. [PMID: 28116905 DOI: 10.1021/acsami.6b14430] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We proposed and demonstrated Ag nanoparticles (NPs)-decorated ZnO photodetectors for UV light sensing. After decoration of their surface with random Ag NPs, the dark current density of ZnO UV photodetectors decreases obviously. Moreover, the device exhibits an obvious increase in peak responsivity at around 380 nm, which can be attributed to the narrow-band quadrupole plasmon resonance of Ag NPs in the UV range. Meanwhile, the responsivity at the other wavelengths decreases a lot. As a result, the response peak becomes more significant, and the response of the devices presents an excellent wavelength selectivity after covering with Ag NPs. The detailed mechanism for this phenomenon was explained. We believe that our findings would open a way to harness the high-order plasmon modes in the field of UV optoelectronic devices.
Collapse
Affiliation(s)
- Xiao Wang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, People's Republic of China
- Graduate University of the Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Kewei Liu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, People's Republic of China
| | - Xing Chen
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, People's Republic of China
| | - Binghui Li
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, People's Republic of China
| | - Mingming Jiang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, People's Republic of China
| | - Zhenzhong Zhang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, People's Republic of China
| | - Haifeng Zhao
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, People's Republic of China
| | - Dezhen Shen
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033, People's Republic of China
| |
Collapse
|
14
|
Bo R, Nasiri N, Chen H, Caputo D, Fu L, Tricoli A. Low-Voltage High-Performance UV Photodetectors: An Interplay between Grain Boundaries and Debye Length. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2606-2615. [PMID: 28032752 DOI: 10.1021/acsami.6b12321] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Accurate detection of UV light by wearable low-power devices has many important applications including environmental monitoring, space to space communication, and defense. Here, we report the structural engineering of ultraporous ZnO nanoparticle networks for fabrication of very low-voltage high-performance UV photodetectors. A record high photo- to dark-current ratio of 3.3 × 105 and detectivity of 3.2 × 1012 Jones at an ultralow operation bias of 2 mV and low UV-light intensity of 86 μW·cm-2 are achieved by controlling the interplay between grain boundaries and surface depletion depth of ZnO nanoscale semiconductors. An optimal window of structural properties is determined by varying the particle size of ultraporous nanoparticle networks from 10 to 42 nm. We find that small electron-depleted nanoparticles (≤40 nm) are necessary to minimize the dark-current; however, the rise in photocurrent is tampered with decreasing particle size due to the increasing density of grain boundaries. These findings reveal that nanoparticles with a size close to twice their Debye length are required for high photo- to dark-current ratio and detectivity, while further decreasing their size decreases the photodetector performance.
Collapse
Affiliation(s)
- Renheng Bo
- Nanotechnology Research Laboratory, Research School of Engineering, Australian National University , Canberra, Australia
| | - Noushin Nasiri
- Nanotechnology Research Laboratory, Research School of Engineering, Australian National University , Canberra, Australia
| | - Hongjun Chen
- Nanotechnology Research Laboratory, Research School of Engineering, Australian National University , Canberra, Australia
| | - Domenico Caputo
- Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome , Rome, Italy
| | - Lan Fu
- Department of Electronic Materials Engineering, Research School of Physics and Engineering, Australian National University , Canberra, Australia
| | - Antonio Tricoli
- Nanotechnology Research Laboratory, Research School of Engineering, Australian National University , Canberra, Australia
| |
Collapse
|