Flexible Thin-Film InGaAs Photodiode Focal Plane Array

Fan, Dejiu; Lee, Kyusang; Forrest, Stephen R.

doi:10.1021/acsphotonics.6b00042

Cited by 41 publications

(36 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To meet the demands of the aforementioned applications, a successful flexible photodetector design necessarily mandates both mechanical ruggedness and superior optical performance such as high signal-to-noise ratio (SNR) and fast response. To date, flexible photodetector devices have been implemented based on several material platforms, including organic polymers [20][21][22][23], nanowires or nanotubes [24][25][26][27][28][29][30], 2D materials [31][32][33][34], perovskites [35][36][37][38], and semiconductor nanomembranes (NMs) [39][40][41][42][43]. Supplement 1 (Table S1) highlights state-of-the-art flexible photodetector devices fabricated from these material systems.…”

Section: Introductionmentioning

confidence: 99%

High-performance flexible waveguide-integrated photodetectors

Li¹,

Lin²,

Huang³

et al. 2018

Optica

View full text Add to dashboard Cite

Mechanically flexible photonic devices are essential building blocks for novel bio-integrated optoelectronic systems, wearable sensors, and flexible consumer electronics. Here we describe the design and experimental demonstration of high-performance flexible semiconductor nanomembrane photodetectors integrated with single-mode chalcogenide glass waveguides. Through a combination of a waveguide-integrated architecture to enhance light-matter interactions and mechanical engineering of multilayer configurations to suppress strains, the detector devices exhibit record optical and mechanical performance. The devices feature a noise equivalent power as low as 0.02 pW · Hz 1∕2 , a linear dynamic range exceeding 70 dB, and a 3-dB bandwidth of 1.4 GHz, all measured at 1530 nm wavelength. The devices withstand 1000 bending cycles at a submillimeter radius without degradation in their optoelectronic responses. These metrics represent significant improvements over state-of-the-art flexible photodetectors.

show abstract

Section: Introductionmentioning

confidence: 99%

High-performance flexible waveguide-integrated photodetectors

Li¹,

Lin²,

Huang³

et al. 2018

Optica

View full text Add to dashboard Cite

show abstract

“…Other strategies use intrinsically soft materials (for example, organic, 0D/1D/2D nanomaterials, and perovskites) or additional optical subsystems to capture images on a curved focal plane . Inherently soft materials provide high bendability and thus facilitate the fabrication of highly curved photodetector arrays (Figure c) .…”

Section: Biomimicry Of Single‐chambered Eyesmentioning

confidence: 99%

Bioinspired Artificial Eyes: Optic Components, Digital Cameras, and Visual Prostheses

Lee

Choi

Kim

et al. 2017

Adv Funct Materials

200

168

View full text Add to dashboard Cite

The diverse vision systems found in nature can provide interesting design inspiration for imaging devices, ranging from optical subcomponents to digital cameras and visual prostheses, with more desirable optical characteristics compared to conventional imagers. The advantages of natural vision systems include high visual acuity, wide field of view, wavelength-free imaging, improved aberration correction and depth of field, and high motion sensitivity. Recent advances in soft materials, ultrathin electronics, and deformable optoelectronics have facilitated the realization of novel processes and device designs that mimic biological vision systems. This review highlights recent progress and continued efforts in the research and development of bioinspired artificial eyes. At first, the configuration of two representative eyes found in nature: a single-chambered eye and a compound eye, is explained. Then, advances in bioinspired optic components and image sensors are discussed in terms of materials, optical/mechanical designs, and integration schemes. Subsequently, novel visual prostheses as representative application examples of bioinspired artificial eyes are described.

show abstract

“…Currently, commercial photodetectors (PDs) are mainly made from the inorganic semiconductor materials, including Si, ZnO, GaN, and InGaAs . These devices show fast response and high responsivity due to their outstanding electrical and optical properties.…”

Section: Introductionmentioning

confidence: 99%

High Speed and Stable Solution‐Processed Triple Cation Perovskite Photodetectors

Zhang

et al. 2018

Advanced Optical Materials

View full text Add to dashboard Cite

optical properties. However, such materials are either expensive or require vacuum equipment, e.g., metal-organic chemical vapor deposition, to fabricate, [7][8][9] which places a restriction on a wide deployment. In recent years, organometal trihalide perovskites (OTPs) (with a structure of ABX 3 , where A is an organic cation CH 3 NH 3 + (MA), B is Pb 2+ , X is a halide anion or mixed halide) have drawn great attention and been a very promising candidate for opto-electronic applications due to low cost and high throughput solution process. Since the discovery of perovskitebased solar cells (PSCs) by Miyasaka and co-workers [10] power conversion efficiencies have exceeded 22% in less than seven years, [11] thanks to the outstanding physics properties, including the low exciton binding energy, strong light absorption, long carrier lifetime, large carrier diffusion coefficient, and low charge recombination rate. [12][13][14][15][16] These features also make the emerging perovskite materials a promising alternative to conventional semiconductors used in PDs. Indeed, solution-processed OTPs have yielded PDs with excellent device performance. [16][17][18][19][20][21][22][23][24] For instance, both polycrystalline films and single crystals of OTPs have been successfully used to fabricate the narrowband and broadband photodetectors. [25][26][27] As one of the earliest discovered and extensively researched perovskite materials, MAPbI 3 has been regarded as one of the most potential materials for PDs due to its broadband absorption and superb light sensitivity. Dong et al. reported a MAPbI 3 -based photodetector with excellent photoconductive properties. [20] Su et al. reported a self-powered photodetector based on MAPbI 3, which exhibited excellent responsivity and rapid response time for wavelength ranging from ultraviolet to visible light. [28] Chen et al. fabricated a flexible UV-vis-NIR photodetector based on MAPbI 3 with excellent mechanical flexibility and durability. [18] However, some issues about this material still exist. MAPbI 3 tends to degrade and dissociate into MAI and PbI 2 in air. [29][30][31] Recent work on FAPbX 3 (FA: CH 3 (NH 2 ) 2 + , X = I, Br, Cl) PSCs demonstrates better thermal durability than methylammonium perovskites. [31,32] However, FAPbI 3 has two different phases at room temperature: α-phase (desired perovskite phase) and δ-phase (photo-inactive phase). Also, the α-phase perovskite of FAPbI 3 , which is sensitive to solvents and moisture, would turn into the undesired δ-phase in an air atmosphere. [33] Photodetectors, which can convert light signals into electrical signals, are important opto-electronic devices in imaging, optical communication, biomedical/biological sensing, and so on. Here a solution-processed photodetector based on the triple cation perovskite is demonstrated. The perovskite photodetectors show a high detectivity, high speed, as well as excellent environmental stability. Operating at a low voltage bias of 2 V, the photodetectors exhibit a large on/off ratio of 10 5 , ...

show abstract

Flexible Thin-Film InGaAs Photodiode Focal Plane Array

Cited by 41 publications

References 32 publications

High-performance flexible waveguide-integrated photodetectors

High-performance flexible waveguide-integrated photodetectors

Bioinspired Artificial Eyes: Optic Components, Digital Cameras, and Visual Prostheses

High Speed and Stable Solution‐Processed Triple Cation Perovskite Photodetectors

Contact Info

Product

Resources

About