Self-powered solid-state photodetector based on TiO2 nanorod/spiro-MeOTAD heterojunction

Xie, Yanru; Wang, Lin; Li, Qinghao; Wei, Guodong; Wang, Dong; Chen, Yanxue; Jiao, Jun; Yan, Shishen; Liu, Guolei; Mei, Liangmo

doi:10.1063/1.4858390

Cited by 35 publications

(23 citation statements)

References 29 publications

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“…The absorption spectrum of CH 3 NH 3 PbI 3 and incident photon-to-electron conversion efficiency (IPCE) action spectrum of the perovskite device are shown in Figure 2 . The device exhibits a broad photoresponse range from 400 to 750 nm, and maximum responsivity of 284 mA W −1 at 490 nm and 0 V PD bias, which is higher than some commercial PDs and previously reported self-powered ones 4 5 6 12 13 . High photoresponse at 0 V bias is also obtained under the illumination with a solar simulator ( Supplementary Information Figure S3 ).…”

Section: Resultsmentioning

confidence: 64%

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High performance organic-inorganic perovskite-optocoupler based on low-voltage and fast response perovskite compound photodetector

Dong

et al. 2015

Sci Rep

108

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Organic-inorganic hybrid photodetectors attract considerable attention because they can combine the advantages of both organic and inorganic systems. Here, a perovskite compound with a broad absorption spectrum and high power conversion efficiency is used as a photosensitive layer in an organic/inorganic hybrid heterojunction photodetector with a high and fast response. The high sensitivity exceeding 104 is obtained at bias of 0–4 V. Using a tandem organic light-emitting diode (OLED) as the light source, we fabricated an optocoupler device. The optocoupler achieved a maximum photoresponsivity of 1.0 A W−1 at 341.3 μWcm−2 at an input voltage of 6 V. The device also exhibits rapid response times of τrise ~ 20 μs and τfall ~ 17 μs; as well as a high current transfer ratio (CTR) of 28.2%. After applying an amplification circuit, the CTR of the optocoupler increases to 263.3%, which is comparable with that of commercial inorganic optocouplers. The developed hybrid optocoupler thus shows great promise for use in photonics.

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Section: Resultsmentioning

confidence: 64%

“…On the other hand, inorganic PDs 11 12 exhibit high carrier mobility and absorption compared with their organic counterparts, but they have disadvantages such as high fabricating temperature and low flexibility. Therefore, organic-inorganic hybrid-PDs that combine the advantages of both are desired 4 13 .…”

mentioning

confidence: 99%

High performance organic-inorganic perovskite-optocoupler based on low-voltage and fast response perovskite compound photodetector

Dong

et al. 2015

Sci Rep

108

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“…Obviously, the photocurrent increases gradually with light intensity increasing from 0.147 to 0.542 mW cm −2 . The nonlinear plot can be fitted to a power law, I ≈ P θ (θ = 0.78), indicating a complex process of electron−hole generation, recombination and trapping at the Se/PANI interface . The reproducibility of the self‐powered PDs of individual Se/PANI, Se/PPy, and Se/PEDOT are also measured by repetitively recording of I – t characteristics.…”

Section: Resultsmentioning

confidence: 97%

Novel p–p Heterojunctions Self‐Powered Broadband Photodetectors with Ultrafast Speed and High Responsivity

Chen

et al. 2017

Adv Funct Materials

146

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Novel inorganic/organic self-powered UV-vis photodetectors based on single Se microtube and conducting polymers-polyaniline (PANI), polypyrrole (PPy), and poly(3,4-ethylenedioxythiophene) (PEDOT)-are fabricated. The conducting polymers are directly coated on the surface of a single Se microtube via a facile and low-cost in situ polymerization method. The integrated Se/PANI photodetector with 45-nm-thick PANI layer shows excellent self-powered behavior under UV-vis light illumination. In particular, it exhibits high on/off ratio of 1.1 × 10 3 , responsivity (120 mA W −1 ), large detectivity (3.78 × 10 11 Jones), and ultrafast response speed (rise time of 4.5 µs and fall time of 2.84 ms) at zero bias at 610 nm (0.434 mW cm −2 )-light illumination. Moreover, the individual Se/PPy and Se/PEDOT self-powered photo detectors also exhibit fast and stable responses, including responsivity of 70 and 5.5 mA W −1 , rise time of 0.35 and 1.00 ms, fall time of 16.97 and 9.78 ms, respectively. Given the simple device architecture and low cost fabrication process, this work provides a promising way to fabricate inorganic/ organic, high-performance, self-powered photodetectors.

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“…As a well‐known n‐type semiconductor material with wide bandgap, TiO 2 exhibits distinct UV absorption characteristics, making it an ideal candidate for visible–blind UV light sensors. Although various TiO 2 ‐based self‐powered photoelectrochemical cell (PEC)‐type detectors have been investigated recently, they always suffer from the evaporation of electrolytes, resulting in a short working life limiting the practical applications. Seldom literatures about TiO 2 based all solid‐state photodetectors can be found in the past decades due to its high combination rate of carriers.…”

Section: Photodetectors Based On Hybrid Structuresmentioning

confidence: 99%

Photoelectric Detectors Based on Inorganic p‐Type Semiconductor Materials

et al. 2018

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Photoelectric detectors are the central part of modern photodetection systems with numerous commercial and scientific applications. p-Type semiconductor materials play important roles in optoelectronic devices. Photodetectors based on p-type semiconductor materials have attracted a great deal of attention in recent years because of their unique properties. Here, a comprehensive summary of the recent progress mainly on photodetectors based on inorganic p-type semiconductor materials is presented. Various structures, including photoconductors, phototransistors, homojunctions, heterojunctions, p-i-n junctions, and metal-semiconductor junctions of photodetectors based on inorganic p-type semiconductor materials, are discussed and summarized. Perspectives and an outlook, highlighting the promising future directions of this research field, are also given.

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Self-powered solid-state photodetector based on TiO2 nanorod/spiro-MeOTAD heterojunction

Abstract: Published by the AIP PublishingArticles you may be interested in Structural and optoelectronic properties of hybrid bulk-heterojunction materials based on conjugated small molecules and mesostructured TiO2 Appl. Phys. Lett.

Cited by 35 publications

References 29 publications

High performance organic-inorganic perovskite-optocoupler based on low-voltage and fast response perovskite compound photodetector

High performance organic-inorganic perovskite-optocoupler based on low-voltage and fast response perovskite compound photodetector

Novel p–p Heterojunctions Self‐Powered Broadband Photodetectors with Ultrafast Speed and High Responsivity

Photoelectric Detectors Based on Inorganic p‐Type Semiconductor Materials

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