Effective Modulation of Optical and Photoelectrical Properties of SnS2 Hexagonal Nanoflakes via Zn Incorporation

Abstract

Tin sulfides are promising materials in the fields of photoelectronics and photovoltaics because of their appropriate energy bands. However, doping in SnS2 can improve the stability and robustness of this material in potential applications. Herein, we report the synthesis of SnS2 nanoflakes with Zn doping via simple hydrothermal route. The effect of doping Zn was found to display a huge influence in the structural and crystalline order of as synthesized SnS2. Their optical properties attest Zn doping of SnS2 results in reduction of the band gap which benefits strong visible-light absorption. Significantly, enhanced photoresponse was observed with respect to pristine SnS2. Such enhancement could result in improved electronic conductivity and sensitivity due to Zn doping at appropriate concentration. These excellent performances show that Sn1−xZnxS2 nanoflakes could offer huge potential for nanoelectronics and optoelectronics device applications.

Magnetic Nanosheets via Chemical Exfoliation of K2xMnxSn1–xS2

“…The 10% Mn doping leads to saturation of the magnetization with moderate applied fields in restacked exfoliated samples. The doping content of the materials reported here is much higher than the reported intralayer V-, Ti-, Zn-, Cu-, Sb-, and Fe-doped SnS 2 variants. − , We not only successfully realize magnetic doping of SnS 2 , but also provide a promising methodology to harvest air stable magnetic nanosheets.…”

“…To expand SnS 2 -related applications, various SnS 2 derivatives were prepared using intercalation and dopant chemistry, which is a strategy for tuning the band gap and photoelectrical properties. Previous publications reported that the nonmagnetic elements V, Ti, Zn, Cu, and Sb can substitute for Sn, which lead to a wider solar absorption due to the decrease of band gap and enhanced photoelectronic performance. − Compared to doping with nonmagnetic elements, magnetic doping mainly occurs in the vdW gap, − while intralayer doping is much less investigated. The few existing reports in the literature are very intriguing.…”

Effect of hydrogen and oxygen plasma on the photoelectronic current and photo-response time of SnS2 flakes

“…photoelectronic properties of SnS 2 -based heterostructures have been examined in the literature and have been proven to have an excellent performance [15][16][17]. The photoelectronic properties of SnS 2 have also received research attention [3,[19][20][21][22][23][24][25][26] due to the abundance, environmentally friendly qualities and energy gap of this material (∼2.28 eV for bulk, 2.6 eV for thin film <6 nm) [29], which falls within the range of visible light. However, these studies report either a large photoelectronic current (of the order of µA) with a long response time (seconds) or a small photoelectronic current (nA range) with a short response time (milliseconds).…”

Functional Nanostructures for Sensors, Optoelectronic Devices, and Drug Delivery

“…The scope of the Special Issue “Functional Nanostructures for Sensors, Optoelectronic Devices, and Drug Delivery” was to provide an overview of the current research activities in the field of nanostructured materials, with a particular emphasis on their potential applications for sensors [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 ], optoelectronic devices [ 10 , 11 , 12 , 13 , 14 , 15 ], and biomedical systems [ 16 , 17 , 18 ]. The Special Issue welcomed the submission of original research articles [ 1 , 2 , 3 , 4 , 5 , 6 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ] and comprehensive reviews that demonstrated or summarized significant advances in the above-mentioned research fields. Next, the Special Issue collected fifteen selected original research papers and three comprehensive reviews [ 7 , 8 , 18 ] on various topics of nanostructured materials and relative characterization spanning from fundamental research to technological applications.…”

“…They demonstrated that these nanostructured materials show higher visible-light absorption and significant improvement in conductivity and sensitivity to illuminations, compared to pristine SnS 2. Such an excellent performance of Sn 0.97 Zn 0.03 S 2 nanoflakes was reported for potential application in optoelectronic devices [ 12 ].…”