Results 51 to 60 of about 272,034 (235)

Nanostructures/Graphene/Silicon Junction‐Based High‐Performance Photodetection Systems: Progress, Challenges, and Future Trends

Advanced Materials Interfaces, 2023
Graphene, due to its exceptional optoelectronic characteristics, high charge carrier mobility, wide absorption band, strong light‐matter interactions, and its adjustable nature, has attracted a lot of interest.
Muhammad Aamir Iqbal, Nadia Anwar, Maria Malik, Mohammed Al‐Bahrani, Md. Rasidul Islam, Jeong Ryeol Choi, Phuong V. Pham, Xiaofeng Liu   +7 more
doaj   +1 more source

Picosecond electrical response in graphene/MoTe2 heterojunction with high responsivity in the near infrared region

Fundamental Research, 2022
Understanding the fundamental charge carrier dynamics is of great significance for photodetectors with both high speed and high responsivity. Devices based on two-dimensional (2D) transition metal dichalcogenides can exhibit picosecond photoresponse ...
Zhouxiaosong Zeng, Kai Braun, Cuihuan Ge, Martin Eberle, Chenguang Zhu, Xingxia Sun, Xin Yang, Jiali Yi, Delang Liang, Yufan Wang, Lanyu Huang, Ziyu Luo, Dong Li, Anlian Pan, Xiao Wang   +14 more
doaj   +1 more source

Enhanced Photodetection in Graphene-Integrated Photonic Crystal Cavity

, 2013
We demonstrate the controlled enhancement of photoresponsivity in a graphene photodetector by coupling to slow light modes in a long photonic crystal linear defect cavity.
Englund, Dirk, Gan, Xuetao, Gao, Yuanda, Hone, James, Li, Luozhou, Shiue, Ren-Jye, Szep, Attila, Walker, Jr., Dennis, Yao, Xinwen   +8 more
core   +1 more source

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

Advanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief, Petr Rozhin, Ilaria Bertuol, Ali Raza, Leonardo Viti, Subhankar Roy, Enrico Cavarzerani, Luca Sbuelz, Matteo Brilli, Andrea Serinolli, Jacopo Nicoletti, Riccardo Piccoli, Sebastián Castilla, Simone Dal Zilio, Enrique Rodríguez‐Castellón, Miriam Serena Vitiello, Maurizio Selva, Flavio Rizzolio, Alvise Perosa, Giovanni Antonio Salvatore, Domenico De Fazio   +20 more
wiley   +1 more source

Narrowband photodetection in the near-infrared with a plasmon-induced hot electron device [PDF]

Nature Communications, 2013
In gratings, incident light can couple strongly to plasmons propagating through periodically spaced slits in a metal film, resulting in a strong, resonant absorption whose frequency is determined by the nanostructure periodicity. When a grating is patterned on a silicon substrate, the absorption response can be combined with plasmon-induced hot ...
Ali, Sobhani, Mark W, Knight, Yumin, Wang, Bob, Zheng, Nicholas S, King, Lisa V, Brown, Zheyu, Fang, Peter, Nordlander, Naomi J, Halas   +8 more
openaire   +2 more sources

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin, Gyeong Min Lee, Juyeon Shin, Jaewoong Kim, Tae Hyuk Kim, Do Yeon Kim, Myeong In Kim, Kyeounghak Kim, Jae Won Shim, In Hwan Jung   +9 more
wiley   +1 more source

Versatile aza‐BODIPY‐based low‐bandgap conjugated small molecule for light harvesting and near‐infrared photodetection

InfoMat, 2022
The versatile nature of organic conjugated materials renders their flawless integration into a diverse family of optoelectronic devices with light‐harvesting, photodetection, or light‐emitting capabilities.
Gurudutt Bhat, Marcin Kielar, Haixia Rao, Mahnaz D. Gholami, Isabel Mathers, Astrid C. R. Larin, Thomas Flanagan, Enkhtur Erdenebileg, Annalisa Bruno, Amandeep Singh Pannu, Kathryn E. Fairfull‐Smith, Emad L. Izake, Pankaj Sah, Yeng Ming Lam, Ajay K. Pandey, Prashant Sonar   +15 more
doaj   +1 more source

Suppression of Photo‐Mediated Traps in Integrated Organic Photovoltaic–Photodetector Devices via N‐Type Self‐Assembly‐Driven Interfacial Engineering

Advanced Functional Materials, EarlyView.
Conventional unstable electron transport layers (ETLs) limit self‐powered organic sensors. This work resolves this by developing a n‐type self‐assembled monolayer (SAM), “3‐PAPh”. This SAM forms a chemically stable and structurally ordered interface that fundamentally suppresses defect formation.
Ohhyun Kwon, Jae Hoon Son, Tae Hyuk Kim, Gyeong Min Lee, Seunghyun Oh, Gayoung Ham, Min Jong Lee, Sang Heon Lee, Seon Joong Kim, Hyojung Cha, Han Young Woo, Jae Won Shim   +11 more
wiley   +1 more source

First-principles based simulations of electronic transmission in ReS2/WSe2 and ReS2/MoSe2 type-II vdW heterointerfaces

Scientific Reports, 2021
Electronic transmission in monolayer ReS $$_{2}$$ 2 and ReS $$_{2}$$ 2 based van der Waals (vdW) heterointerfaces are studied here. Since ReS $$_{2}$$ 2 /WSe $$_{2}$$ 2 and ReS $$_{2}$$ 2 /MoSe $$_{2}$$ 2 type-II vdW heterostructures are suitable for ...
Dipankar Saha, Saurabh Lodha
doaj   +1 more source

Graphene plasmonics

, 2012
Two rich and vibrant fields of investigation, graphene physics and plasmonics, strongly overlap. Not only does graphene possess intrinsic plasmons that are tunable and adjustable, but a combination of graphene with noble-metal nanostructures promises a ...
A Bostwick, A Ferreira, A Principi, A Principi, A Splendiani, A Vakil, A. N. Grigorenko, AB Kuzmenko, AC Ferrari, AH Castro Neto, AK Geim, AL Walter, AS Mayorov, AV Kabashin, B Wunsch, BI Lundqvist, CR Dean, D Belitz, DC Elias, DC Elias, EH Hwang, EH Hwang, F Bonaccorso, F Schedin, F Wang, FHL Koppens, G Giovannetti, GF Giuliani, H Yan, H Yan, HA Atwater, I Crassee, J Chen, J Christensen, J Lee, J Lee, J Park, JN Coleman, JP Reed, JPF LeBlanc, JT Kim, JT Robinson, K. S. Novoselov, KF Mak, KF Mak, KS Novoselov, KS Novoselov, KS Novoselov, KS Novoselov, KWK Shung, L Ju, L Vicarelli, L Yang, LA Ponomarenko, LA Ponomarenko, M Engel, M Furchi, M Jablan, M Liu, M Polini, M. Polini, MR Ramezanali, N Papasimakis, NM Gabor, NMR Peres, P Blake, P Tassin, Q Bao, QL Bao, RJ Koch, RR Nair, RR Nair, RV Gorbachev, S Gangadharaiah, SA Maier, SA Mikhailov, SH Abedinpour, SI Bozhevolnyi, T Eberlein, T Mueller, TJ Echtermeyer, VG Kravets, VG Kravets, VG Kravets, VG Kravets, VG Kravets, VN Kotov, VW Brar, W Zhou, WL Barnes, X Ling, XD Xu, XS Li, Y Barlas, Y Liu, Y Liu, Y Zou, YB Zhang, Z Fei, Z Fei, ZQ Li   +100 more
core   +1 more source