Flexible Photodiodes Based on Nitride Core/Shell p–n Junction Nanowires

Zhang, Hezhi; Dai, Xiaoying; Guan, Nan; Messanvi, Agnès; Neplokh, Vladimir; Piazza, Valerio; Vallo, Martin; Bougerol, Catherine; Julien, F. H.; Babichev, A. V.; Cavassilas, Nicolas; Bescond, Marc; Michelini, Fabienne; Foldyna, Martin; Gautier, Éric; Durand, Christophe; Eymery, J.; Tchernycheva, Maria

doi:10.1021/acsami.6b06414

Cited by 68 publications

(62 citation statements)

References 51 publications

(102 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As clearly indicated from the EBIC measurements, since both samples I and II have low junction positions, minority carriers generated from the substrate could diffuse to the junction to contribute to the photocurrent making it hard to differentiate the contribution from the NW and the substrate; whereas in sample III (p‐p − ‐n structure) due to its higher junction position (>1 μm from the substrate) and limited carrier diffusion length, we may exclude the possibility of photocurrent generation from the substrate. This will allow us to assess the real device performance of the NWSC array, which is critical for enabling their future applications as flexible/wearable devices where the NW array needs to be detached (or peeled off) from the substrate …”

Section: Resultsmentioning

confidence: 99%

Axial p‐n junction design and characterization for InP nanowire array solar cells

Gao

et al. 2018

Progress in Photovoltaics

View full text Add to dashboard Cite

In this work, InP nanowire (NW) array solar cells with different axial p‐i‐n junction designs were investigated. The optical properties of the different NW structures were characterized through a series of microphotoluminescence measurements to extract important material parameters such as minority carrier lifetimes and internal quantum efficiencies. A glancing angle sputtering deposition technique has been developed to enable a direct visualization of the p‐n junctions in the vertical array of InP NW solar cells (NWSCs) using electron beam‐induced current (EBIC) technique. Based on EBIC and electrical simulation, it is found that the background doping in NWSC significantly affects the junction position. By modifying the junction design, the width and position of the p‐n junction can be varied effectively. By employing a p‐p−‐n structure, a high junction position (>1 μm from the substrate) and wide depletion width have been achieved as confirmed by EBIC measurement. Moreover, the NW growth substrate does not show any influence on the device behavior due to the fully decoupled junction position, indicating a promising structural design for future development of high‐performance, low‐cost flexible NW devices.

show abstract

Section: Resultsmentioning

confidence: 99%

Axial p‐n junction design and characterization for InP nanowire array solar cells

Gao

et al. 2018

Progress in Photovoltaics

View full text Add to dashboard Cite

show abstract

“…Photodiodes can provide an improved detectivity and sensitivity due to the lowest dark current, as well as fast response speeds thanks to efficient separation of photocarriers by the built‐in electric field . Flexible photodiodes based on 1D inorganic nanostructure p‐n junctions or Schottky junctions have also attracted considerable research interest in recent years . Huang et al presented flexible NIR photodetectors based on p‐n junctions of multi‐walled CNTs, which exhibit a evidently enhanced photoresponse compared with detectors based on p‐type or n‐type CNTs only .…”

Section: D Inorganic Nanostructures‐based Flexible Photodetectorsmentioning

confidence: 99%

Flexible Photodetectors Based on Novel Functional Materials

Xie

Yan

2017

Small

295

240

View full text Add to dashboard Cite

Flexible photodetectors have attracted a great deal of research interest in recent years due to their great possibilities for application in a variety of emerging areas such as flexible, stretchable, implantable, portable, wearable and printed electronics and optoelectronics. Novel functional materials, including materials with zero-dimensional (0D) and one-dimensional (1D) inorganic nanostructures, two-dimensional (2D) layered materials, organic semiconductors and perovskite materials, exhibit appealing electrical and optoelectrical properties, as well as outstanding mechanical flexibility, and have been widely studied as building blocks in cost-effective flexible photodetection. Here, we comprehensively review the outstanding performance of flexible photodetectors made from these novel functional materials reported in recent years. The photoresponse characteristics and flexibility of the devices will be discussed systematically. Summaries and challenges are provided to guide future directions of this vital research field.

show abstract

“…In addition, same anisotropy has been reported for its electrical conductance that makes the borophene sheet an ideal candidate for electronic devices [20]. Borophene sheets can be used as an anode electrode in Li and Na rechargeable batteries [21][22][23]. Superconductivity of the borophene sheets has also been attracted some attention in recent years [24,25].…”

Section: Introductionmentioning

confidence: 86%

Freestanding χ₃-borophene nanoribbons: a density functional theory investigation

Vishkayi

Tagani

2018

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

Experimental observation of borophene nanoribbons (BNRs) motivated us to carry out a comprehensive investigation on BNRs, decomposed from a χ3 sheet, using density functional theory. Our results show that the stability and also the electrical and magnetic properties of the ribbons are strongly dependent on the edge configurations. We have studied two categories of ribbon: XBNRs and YBNRs. The first one is a nonmagnetic metal with armchair shaped edges, while YBNRs can be magnetic or nonmagnetic depending on the edge shape. YBNRs have four different edge types and we show that two of them are magnetic (a- and b-type edges) while the other two are nonmagnetic (c- and d-type edges). There are 10 distinct configurations possible by arranging the different edges of YBNRs. 10 percent of YBNRs are polarized asymmetrically at the edges, leading to the loss of degeneracy of the spin-up and spin-down bands in the antiferromagnetic configuration. 40 percent of YBNRs have one magnetic edge and can be promising candidates for spintronic applications due to the separation of the spin in the real space in addition to the energy space. Electronic transmission properties of the ribbons were also studied and we found that transmission channels are suppressed at the edges of XBNRs due to electron localization.

show abstract

Flexible Photodiodes Based on Nitride Core/Shell p–n Junction Nanowires

Cited by 68 publications

References 51 publications

Axial p‐n junction design and characterization for InP nanowire array solar cells

Axial p‐n junction design and characterization for InP nanowire array solar cells

Flexible Photodetectors Based on Novel Functional Materials

Freestanding χ₃-borophene nanoribbons: a density functional theory investigation

Contact Info

Product

Resources

About

Flexible Photodiodes Based on Nitride Core/Shell p–n Junction Nanowires

Cited by 68 publications

References 51 publications

Axial p‐n junction design and characterization for InP nanowire array solar cells

Axial p‐n junction design and characterization for InP nanowire array solar cells

Flexible Photodetectors Based on Novel Functional Materials

Freestanding χ3-borophene nanoribbons: a density functional theory investigation

Contact Info

Product

Resources

About

Freestanding χ₃-borophene nanoribbons: a density functional theory investigation