01614nas a2200157 4500008004100000245006000041210005900101260008100160300001000241520101200251100002401263700002401287700002801311700002301339856009401362 2015 eng d00aBlack phosphorous nanosheets: prospective field emitter0 aBlack phosphorous nanosheets prospective field emitter aGuangzhou, Peoples R ChinabIEEE, 345 E 47th St, New York, NY 10017 USAcJUL a94-953 a

We report for the first time field electron emission investigations on few layered black phosphorous nanosheets emitter's synthesized using chemical method with thickness similar to 2-5 nm. The turn-on electric field required to draw an emission current density of similar to 10 mu A/cm(2) was found to be similar to 4.2 V/mu m. Furthermore, a few layer black phosphorous nanosheets emitter deliver an large emission current density of similar to 170 mu A/cm(2) at an applied field of similar to 7.5 V/mu m. The emission current versus time plot measured at the preset current values of similar to 5 mu A shows field emission current fluctuations within +/- 10% of the average value indicating the well stable nature of black phosphorous field emitter. Thus, the two dimensional black phosphorous nanosheets synthesized using simple electrochemical exfoliation method can be realized and utilized for the next generation micro/nanoelectronics and flat panel field emission based display applications.

1 aLate, Dattatray, J.1 aErande, Manisha, B.1 aSuryawanshi, Sachin, R.1 aMore, Mahendra, A. uhttps://library.ncl.res.in/content/black-phosphorous-nanosheets-prospective-field-emitter01721nas a2200217 4500008004100000022001400041245009000055210006900145260007700214300001400291520089900305653001901204653002201223653001901245653001501264100002401279700002801303700002301331700002401354856012501378 2015 eng d a1434-194800aElectrochemically exfoliated black phosphorus nanosheets - prospective field emitters0 aElectrochemically exfoliated black phosphorus nanosheets prospec aBOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcJUL a3102-31073 a

Herein we report field emission (FE) investigations on an electrochemically exfoliated few-layered black phosphorus nanosheet emitter at a base pressure of approximately 1x10(-8) mbar. The turn-on electric field required to draw an emission current density of approximately 10 A/cm(2) is found to be about 4.2 V/m. Furthermore, few-layered black phosphorus nanosheet emitters deliver an emission current density of about 170 A/cm(2) at an applied field of about 7.5 V/m. The emission current vs. time plot measured at preset current values of about 5 A shows emission current fluctuations within +/- 10% of the average value, indicating the highly stable nature of the black phosphorus field emitter. Thus, the 2D black phosphorus nanosheets synthesized using the simple electrochemical exfoliation method can be utilized for micro/nanoelectronics and flat panel FE display applications.

10afield emission10aLayered compounds10aNanostructures10aPhosphorus1 aErande, Manisha, B.1 aSuryawanshi, Sachin, R.1 aMore, Mahendra, A.1 aLate, Dattatray, J. uhttps://library.ncl.res.in/content/electrochemically-exfoliated-black-phosphorus-nanosheets-prospective-field-emitters-001555nas a2200229 4500008004100000022001400041245010200055210006900157260006700226300001400293490000700307520071500314653001201029653000901041653002601050653001901076653002701095100002301122700002401145700002401169856013201193 2015 eng d a0022-514200aGraphene quantum dots as enhanced plant growth regulators: effects on coriander and garlic plants0 aGraphene quantum dots as enhanced plant growth regulators effect a111 RIVER ST, HOBOKEN 07030-5774, NJ USAbWILEY-BLACKWELLcOCT a2772-27780 v953 a

BACKGROUNDWe report investigations on the use of graphene quantum dots for growth enhancement in coriander (Coriandrum sativam L.) and garlic (Allium sativum) plants. The as-received seeds of coriander and garlic were treated with 0.2 mg mL(-1) of graphene quantum dots for 3 h before planting. RESULTSGraphene quantum dots enhanced the growth rate in coriander and garlic plants, including leaves, roots, shoots, flowers and fruits, when the seeds were treated with graphene quantum dots. CONCLUSIONOur investigations open up the opportunity to use graphene quantum dots as plant growth regulators that can be used in a variety of other food plants for high yield. (c) 2015 Society of Chemical Industry

10afarming10afood10agraphene quantum dots10ananotechnology10aplant growth regulator1 aChakravarty, Disha1 aErande, Manisha, B.1 aLate, Dattatray, J. uhttps://library.ncl.res.in/content/graphene-quantum-dots-enhanced-plant-growth-regulators-effects-coriander-and-garlic-plants-001953nas a2200217 4500008004100000022001400041245013300055210006900188260007100257300001600328490000600344520109300350653002101443653003201464653002001496653001801516100002401534700002401558700002401582856012901606 2016 eng d a1944-824400aHumidity sensing and photodetection behavior of electrochemically exfoliated atomically thin-layered black phosphorus nanosheets0 aHumidity sensing and photodetection behavior of electrochemicall a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcMAY a11548-115560 v83 a

Recent investigations on two-dimensional black phosphorus material mainly highlight work on few atomic layers and multilayers. It is still unknown if the black phosphorus atomically thin sheet is an ideal structure for the enhanced gas solid interactions due to its large surface area. To further investigate this concern, we have synthesized few atomic layer thick nanosheets of black phosphorus using an electrochemical exfoliation method. The surface morphology and thickness of the nanosheet were identified using AFM, TEM, and Raman spectroscopy. The black phosphorus nanosheet thick film device was used for the gas sensing application with exposure to different humidites. Further, the few layer black phosphorus nanosheet based transistor shows good mobility and on/off ratio. The UV light irradiation on the black phosphorus nanosheet shows good response time. The overall results show that the few layer thick film of black phosphorus nanosheets sample exhibits creditable sensitivity and better recovery time to be used in humidity sensor and photodetector applications.

10ablack phosphorus10aelectrochemical exfoliation10ahumidity sensor10aphotodetector1 aErande, Manisha, B.1 aPawar, Mahendra, S.1 aLate, Dattatray, J. uhttps://library.ncl.res.in/content/humidity-sensing-and-photodetection-behavior-electrochemically-exfoliated-atomically-thin01549nas a2200181 4500008004100000245008300041210006900124260000800193300001800201490000600219520090300225100003201128700002401160700002201184700002601206700002401232856011101256 2016 eng d00aSnS2 nanoflakes for efficient humidity and alcohol sensing at room temperature0 aSnS2 nanoflakes for efficient humidity and alcohol sensing at ro cOCT a105421-1054270 v63 aWe report a one step facile hydrothermal synthesis of layered SnS2 nanoflakes. The as-synthesized nanosheets are characterized using X-ray diffraction, Raman spectroscopy and Transmission Electron Microscopy (TEM). The humidity sensing behavior of SnS2 nanoflake sensor device were investigated in the range of 11-97% of relative humidity (RH) at room temperature. The response time of similar to 85 s and recovery time of similar to 6 s were observed for the SnS2 nanoflake based humidity sensor. A maximum sensitivity of 11.300% is recorded. We also investigate the SnS2 nanoflake based alcohol sensing properties towards methanol, ethanol and iso-propyl alcohol. An exclusive selectivity towards methanol with a response of 1580 is shown as compared to other analytes. The response time of similar to 67 s and recovery time of just 5 s were observed for the SnS2 nanoflake based methanol sensor.1 aBharatula, Lakshmi, Deepika1 aErande, Manisha, B.1 aMulla, Imtiaz, S.1 aRout, Chandra, Sekhar1 aLate, Dattatray, J. uhttps://library.ncl.res.in/content/sns2-nanoflakes-efficient-humidity-and-alcohol-sensing-room-temperature01234nas a2200157 4500008004100000245011500041210006900156260000800225490000600233520061800239100002200857700002400879700002400903700002400927856012500951 2016 eng d00aTemperature dependent Raman spectroscopy of electrochemically exfoliated few layer black phosphorus nanosheets0 aTemperature dependent Raman spectroscopy of electrochemically ex cAUG0 v63 aThe present investigation deals with temperature dependant Raman spectroscopy of electrochemically exfoliated few layer black phosphorus nanosheets. The temperature dependent study illustrates that softening of the A(g)(1), B-2g and A(g)(2) modes occurs as the temperature increases from 78 K to 573 K. The calculated temperature coefficients for the A(g)(1), B-2g and A(g)(2) modes were found to be -0.028 cm(-1) K-1, -0.028 cm(-1) K-1 and -0.018 cm(-1) K-1 respectively. The observed phenomenon can be utilized for characterizing other emerging two-dimensional inorganic layered materials with atomic thickness.1 aPawbake, Amit, S.1 aErande, Manisha, B.1 aJadkar, Sandesh, R.1 aLate, Dattatray, J. uhttps://library.ncl.res.in/content/temperature-dependent-raman-spectroscopy-electrochemically-exfoliated-few-layer-black