Results 171 to 180 of about 22,867 (240)

Enhancing Triplet Excitons Lifetime Through Controlled Intermolecular Interactions

Advanced Optical Materials, EarlyView.
Singlet fission (SF) is investigated in pentacene embedded in a surface‐anchored metal–organic framework, enabling a molecular arrangement inaccessible in pure organic crystals. This architecture changes the singlet fission dynamics significantly and enhances the triplet lifetime by almost four orders of magnitude.
Martin Richter, Muhammed Jeneesh Kariyottukuniyil, Zhiyun Xu, Philipp Ludwig, Pavel V. Kolesnichenko, Christian Huck, Uwe H. F. Bunz, Christof Wöll, Wolfgang Wenzel, Petra Tegeder   +9 more
wiley   +1 more source

Process and design guidelines for inkjet-printed organic photovoltaic cells - using the example of PM6:Y6.

Mater Adv
Chou TY, Sinha T, Jiang X, Akdoğan E, Siegmund B, Rosenthal M, Vandewal K, Molina-Lopez F.   +7 more
europepmc   +1 more source

Amphiphilic Graft Copolymers as Templates for the Generation of Binary Metal Oxide Mesoporous Interfacial Layers for Solid-State Photovoltaic Cells. [PDF]

Nanomaterials (Basel)
Lim SM, Jeong H, Moon J, Park JT.
europepmc   +1 more source

OTSun, a python package for the optical analysis of solar-thermal collectors and photovoltaic cells with arbitrary geometry. [PDF]

PLoS One, 2020
Cardona G, Pujol-Nadal R.
europepmc   +1 more source

Room‐Temperature, Photo‐Densified High Refractive Index Titanium Oxide Thin Films for Solution‐Processed Flexible Bragg Mirrors and Microcavity OLEDs

Advanced Optical Materials, EarlyView.
This paper presents the room‐temperature fabrication of solution‐processed, high refractive index TiOX thin films via photo‐densification. Using these films, flexible Bragg mirrors are demonstrated on PET substrates, achieving a high reflectivity of 96% at 450 nm.
Ayumu Nagaoka, He Sun, Luyang Song, Lina Yoshida, Tsukasa Yoshida, Yoshiyuki Suzuri   +5 more
wiley   +1 more source

Mitigating Singlet Exciton Back‐Transfer using 2D Spacer Layers for Perovskite‐Sensitised Upconversion

Advanced Optical Materials, EarlyView.
The efficiency of bulk perovskite‐sensitised upconversion is hindered by parasitic singlet back‐transfer. A 2D perovskite spacer layer is introduced to weaken this loss pathway by increasing the separation between the sensitiser and the emitter. The spacer layer enhances the upconversion efficiency at lower excitation powers and improves the stability ...
Nicholas P. Sloane, Damon M. de Clercq, Md Arafat Mahmud, Jianghui Zheng, Adrian Mena, Guoliang Wang, Michael P. Nielsen, Anita W.Y. Ho‐Baillie, Christopher G. Bailey, Timothy W. Schmidt, Dane R. McCamey   +10 more
wiley   +1 more source

Diameter Dependence of Light Absorption in GaAs Nanowires Evidenced by Photoluminescence Spectroscopy

Advanced Optical Materials, EarlyView.
Photoluminescence spectroscopy is introduced as a qualitative method to probe light absorption in highly phase‐pure GaAs nanowire arrays and single nanowires, for which direct absorption measurements are challenging. Using defect‐line saturation and the exciton‐to‐plasma transition as indicators for the density of photogenerated charge carriers, a ...
Francisca Marín, Ijaas Mohamed, Oliver Brandt, Lutz Geelhaar   +3 more
wiley   +1 more source

Spectroscopic Ellipsometry Characterization and Radiative Limit Modeling of Bismuth‐Based Perovskite‐Inspired Absorbers for Indoor Photovoltaics

Advanced Optical Materials, EarlyView.
This study determines the optical constants of two lead‐free perovskite‐inspired materials (PIMs), Cu2AgBiI6 and Cs3Bi2I6Br3, promising for indoor light conversion. The optical constants are applied to simulate photovoltaic device optics, and thereupon, revise the theoretical limits for photocurrent generation and power conversion efficiency, providing
Aleksi Kamppinen, G. Krishnamurthy Grandhi, Mahboubeh Hadadian, Sami Toikkonen, Sirius Yli‐Paavola, Paola Vivo, Kati Miettunen   +6 more
wiley   +1 more source

Electronic Structure and Surface Properties of Copper Thiocyanate: A Promising Hole Transport Material for Organic Photovoltaic Cells. [PDF]

Materials (Basel), 2020
Odeke BA, Chung GD, Fajemisin JA, Suraj KS, Tonui DK, Tobi AR, Bewaale TC, Ajibola JA, Dzade NY.   +8 more
europepmc   +1 more source

Selective Crystal Growth and Optical Responses of 2H and 3R Polytypes in van der Waals Polar Insulator α‐In2Se3

Advanced Optical Materials, EarlyView.
Selective growth protocols are established to obtain high‐quality bulk single crystals of the 2H and 3R polytypes of the vdW polar insulator α‐In2Se3, together with rapid, non‐destructive phase‐identification methods. Combined optical transmission and absolute reflectivity measurements, supported by DFT calculations, reveal distinct polytype‐dependent ...
Ryoga Murata, Takao Sasagawa
wiley   +1 more source