All-inorganic cesium lead bromide ($CsPbBr3$) perovskite quantum dots (QDs) with excellent optical properties have been regarded as good gain materials for amplified spontaneous emission (ASE). However, the poor stabilit

PDF全文 Photonics Research | 2020,8(10):1605-1612

Understanding and controlling defect in two-dimensional materials is important for both linear and nonlinear optoelectronic devices, especially in terms of tuning nonlinear optical absorption. Taking advantage of an atomic defect formed easily by smaller size, molybdenum disulfide nanosheet is prepared successfully with a different size by gradient centrifugation. Interestingly

PDF全文 Photonics Research | 2020,8(09):1512-1521

In this work, one kind of type II ZnSe/CdS/ZnS core/shell/shell nanocrystals (NCs) is synthesized, and their linear and nonlinear photophysical properties are investigated. Through measurements of the temperature-dependent photoluminescence spectra of NCs, their excitonic properties, including the coefficient of the bandgap change, coupling strength of the exciton acoustic phon

PDF全文 Photonics Research | 2020,8(09):1416-1421

The electrical and structural properties of V/Al-based n-contacts on $n‐AlxGa1?xN$ with

PDF全文 Photonics Research | 2020,8(08):1381-1387

Structural coloration techniques have improved display science due to their high durability in terms of resistance to bleaching and abrasion, and low energy consumption. Here, we propose and demonstrate an all-solid-state, large-area, lithography-free color filter that can switch structural color based on a doped semiconductor. Particularly, an indium-gallium-zinc-oxide (IGZO)

PDF全文 Photonics Research | 2020,8(09):1409-1415

Self-powered and flexible ultrabroadband photodetectors (PDs) are desirable in a wide range of applications. The current PDs based on the photothermoelectric (PTE) effect have realized broadband photodetection. However, most of them express low photoresponse and lack of flexibility. In this work, high-performance, self-powered, and flexible PTE PDs based on laser-scribed reduce

PDF全文 Photonics Research | 2020,8(08):1301-1308

$Q$-switched fiber lasers are integral tools in science, industry, and medicine due to their advantages of flexibility, compactness, and reliability. All-optical strategies to generate ultrashort pulses have obtained considerable attention as

PDF全文 Photonics Research | 2020,8(07):1140-1147

All inorganic $CsPbBr3$ perovskite quantum dots (QDs) have been recognized as promising optical materials to fabricate green light emission devices because of their excellent optical performance

PDF全文 Photonics Research | 2020,8(07):1086-1092

Single-nanowire solar cells with a unique light-concentration property are expected to exceed the Shockley–Queisser limit. The architecture of single nanowire is an important factor to regulate its optical performance. We designed a trilobal silicon nanowire (SiNW) with two equivalent scales that possesses superior light-absorption efficiency in the whole wavelength range and

PDF全文 Photonics Research | 2020,8(06):995-1001

The effect of tin-oxide (SnO) nanoparticles, which are obtained by indium-tin-oxide (ITO) treatment, on p-GaN surface of GaN-based flip-chip blue micro-light-emitting diodes ($μ$-LEDs) arrays is investigated. A thin Ag l

PDF全文 Photonics Research | 2020,8(06):1049-1058