Results 171 to 180 of about 151,205 (298)

Interfacial Energetics in Metal Halide Perovskite Solar Cells. [PDF]

Chem Rev
Molenda Z, Scalon L, Singh S, Vaynzof Y.
europepmc   +1 more source

Excitation‐Selective Hydrochromic Upconversion in Zero‐Dimensional Metal Halides

Advanced Science, EarlyView.
Excitation wavelength dictates whether moisture speaks. In zero‐dimensional metal halides, the same humidity leaves the upconversion emission unchanged under 980 nm excitation yet triggers a distinct green‐to‐red shift under 1550 nm. This excitation‐selective hydrochromism, governed by the absorption at each wavelength, enables stimulus‐dependent ...
Joo Hyeong Han, Jeong Min Seo, Sung Woo Jang, Yong Min Park, San Ha Choi, Ji Hyeon Cha, Won Bin Im   +6 more
wiley   +1 more source

Lead Halide Perovskite Photoelectrocatalysis. [PDF]

Adv Mater
Andrei V.
europepmc   +1 more source

Trap‐Programmable Ruddlesden–Popper Perovskite Nanocrystals for Persistent Optoelectronic Memory and Photonic Synapses

Advanced Science, EarlyView.
This work presents trap‐programmable Ruddlesden–Popper perovskite nanocrystals for ultralong‐lived optical memory and photonic synapses. Layer‐controlled octahedral distortion modulates trap depth and carrier‐storage kinetics, enabling persistent luminescence beyond 5000 s at room temperature.
Xuanyu Zhu, Qi Liu, Qi Wei, Hui Ren, Luwei Zhou, Jiangbo Peng, Yuxuan Chen, Jiatong Wang, Leyi Zhao, Pengzhi Wang, Xue Hao, Ting Wang, Mingjie Li   +12 more
wiley   +1 more source

Heterostructure engineering for efficient halide perovskite X-ray detectors. [PDF]

iScience
Li F.
europepmc   +1 more source

Low Threshold Vertical Cavity Surface Emitting Lasers Based on CsPbI3 Thin Films

Advanced Science, EarlyView.
The first vertical‐cavity surface‐emitting laser (VCSEL) based on CsPbI3 thin films is fabricated by planar hot pressing. By optimizing the cavity design through optical gain assessment and rigorous coupled‐wave analysis, the VCSEL achieved an exceptionally low lasing threshold of 2.8 µJ cm−2.
Naho Kurahashi, Maximilian Schiffer, Cedric Kreusel, Christian Tückmantel, Ahmed Kadid, Habib Ur Rehman, Florian Gaschler, René Anfang, Christopher Knoth, Maximilian Buchmüller, Patrick Görrn, Thomas Riedl   +11 more
wiley   +1 more source

From Filamentary Failure to Durable Halide Perovskite Memristors. [PDF]

ACS Nano
Hu T, Tuazon N, Xu Z, Gao S, Hong J, Badran H, Kerner RA, Xia Q, Rand BP.   +8 more
europepmc   +1 more source

CW‐Pumped Amplified Spontaneous Emission From Thermally Evaporated CsPbBr3 Films

Advanced Science, EarlyView.
Thermally evaporated CsPbBr3 thin films sustain amplified spontaneous emission from short‐pulse toward quasi‐continuous‐wave excitation. Time‐resolved spectroscopy, controlled excitation, and substrate engineering reveal how excitation duration governs optical‐gain stability.
Yuliia Kominko, Willem Verheijen, Gabriele Rainò, Simon C. Boehme, Maksym V. Kovalenko, Sergii Yakunin   +5 more
wiley   +1 more source

Optical Access to Dark Excitons Via Spin–Phonon Fano Interference

Advanced Science, EarlyView.
Dark excitons in quantum dots neither absorb nor emit light and stay hidden from optical spectroscopy. Quantum interference now reveals them: light scattered by acoustic phonons interferes with a phonon‐assisted spin flip between bright and dark exciton, carving a Fano dip into the spectrum whose position gives the bright–dark splitting. Magnetic field,
Janina J. Schindler, Katja Barthelmi, Mikhail M. Glazov, Carlo Sgroi, Sven Scholz, Arne Ludwig, Andreas D. Wieck, Jörg Debus   +7 more
wiley   +1 more source

Lead-Free Hybrid Halide Perovskite for Piezoelectric Energy Harvesting. [PDF]

Small
Pradhan P, Paul S, Pradhan RK, Datta A, Patra BK.   +4 more
europepmc   +1 more source