2Dlayer Product Catalog

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1 2Dlayer Product Catalog Your idea, Our materials! We provide solutions, not just materials. Tel.: URL: We accept purchase orders and all kinds of credit cards.

2 100% Satisfaction Guaranteed 2Dlayer stands behind all the products it sells. If you are not satisfied with your purchase, you can return it for replacement or refund within 30 days of receiving the product. The customer could be responsible for shipping costs on all the products not returned due to defect. 2Dlayer reserves the right to modify the policy and listed pricing of products without prior notice when deemed necessary. 1

3 TABLE OF CONTENTS 1. CVD-grown 2D TMDC Materials 3 i. CVD-grown continuous films ii. CVD-grown single crystalline flakes 2. Transferred 2D TMDC Materials 10 i. Transferred continuous films ii. Transferred single crystalline flakes 3. Suspended 2D TMDC Materials.. 13 i. Suspended continuous films ii. Suspended single crystalline flakes 4. 2D Heterostructures.. 16 i. TMDC/TMDC heterostructures ii. TMDC/graphene heterostructures 5. Specially Engineered 2D TMDC Materials i. Proton or lithium ion treated 2D materials ii. iii. iv. Crumpled 2D materials 2D materials narrowband or broadband light superabsorbers Patterned 2D materials 6. Services.. 22 i. Customer growth or transfer ii. iii. Customer characterizations Customer fabrication and engineering 2

4 CVD-Grown Continuous 2D TMDC Films Overview 2Dlayer s continuous 2D transition metal dichalcogenide (TMDC) films are designed to enable research opportunities that are difficult or cannot be obtained with small-scale flakes. Advantages ØLarge size, up to 2-inch wafer scale. ØPrecisely controlled layer number up to 10. from tens of nm to micrometers Features * Continuous, no voids or cracks * Large size: typical size 1 x1 cm, larger size up to 2- inch wafer-scale available upon requests * Polycrystalline, grain size tuned in the range of * High crystalline quality: Raman intensity and PL efficiency comparable to single crystalline flake counterparts * Highly uniform, Raman intensity variation < 10% across the entire sample. * Layer number precisely controlled to be up to 10. Multilayers are AB stacking. * Typical growth substrates are single-side or double-side polished sapphire (typically 0001 plane) or SiO 2 /Si substrates. Other options are available upon request. 2Dlayer can make continuous films up to 2 inch wafer-scale size. The scratch is intentionally introduced to show the contrast. 3

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6 List of Products Product No. Continuous Films CF-1-MoS2 1L MoS 2 CF-2-MoS2 2L MoS 2 CF-3-MoS2 3L MoS 2 CF-4-MoS2 4L MoS 2 CF-5X-MoS2 5L MoS 2 or thicker CF-1-WS2 1L WS 2 CF-2-WS2 2L WS 2 CF-3-WS2 3L WS 2 CF-4-WS2 4L WS 2 Substrates Price Other Specifications Sapphire * Surface roughness < 0.2 nm $449 or SiO 2 /Si * No mixture of other layers Sapphire or * Surface roughness < 0.3 nm $449 SiO 2 /Si * No mixture of other layers Sapphire or * Surface roughness < 0.3 nm $499 SiO 2 /Si * No mixture of other layers Sapphire or * Surface roughness < 0.4 nm $549 SiO 2 /Si * No mixture of other layers Sapphire or * Surface roughness < 0.4 nm $599 SiO 2 /Si * No mixture of other layers Sapphire or * Surface roughness < 0.2 nm $449 SiO 2 /Si * No mixture of other layers Sapphire or * Surface roughness < 0.3 nm $449 SiO 2 /Si * No mixture of other layers Sapphire or * surface roughness < 0.3 nm $499 SiO 2 /Si * No mixture of other layers Sapphire or * Surface roughness < 0.4 nm $549 SiO 2 /Si * No mixture of other layers 5

7 CF-5X-WS2 5L WS 2 or thicker Sapphire or SiO 2 /Si $599 * Surface roughness < 0.4 nm * No mixture of other layers CF-X-X Service for growing atomically thin TMDC films on customer substrates is available upon request. Inquiry to info@2dlayer.com 6

8 CVD-Grown Single-Crystalline 2D TMDC Flakes Overview 2Dlayer s single-crystalline 2D transition metal dichalcogenide (TMDC) flakes provides the highest crystalline quality and well defined crystalline directions, and are particularly suitable for the research that does not require large size and tunable layer numbers. Advantages ØHighest crystalline quality. ØWell defined crystalline directions. Features * PL efficiency is in the range of 0.1-5% * The size of each flake may be tuned in the range of micrometers. * Well separated single crystalline flakes and the density is tunable. * Most of the flakes are single crystalline, but some may be conjoined multiple single-crystalline flakes that involves well-defined grain boundaries. * Most of the flakes are monolayers, but some few-layer flakes may also be involved. The monolayer and few-layer flakes can be easily distinguished under optical microscopies. 7

9 List of Products Product No. Flakes Substrates Price Other Specifications SF-MoS2-SSAP 1L MoS 2 Single-side polished sapphire $299 SF-MoS2-DSAP 1L MoS 2 Double-side polished * PL efficiency is in $319 sapphire the range of 0.1- SF-MoS2-SiO2 1L MoS 2 SiO 2 /Si $ %. SF-MoS2-Quar 1L MoS 2 Quartz $349 SF-MoS2-GaN 1L MoS 2 GaN $599 SF-MoS2-Gold 1L MoS 2 Gold $699 SF-MoS2-X SF-WS2-SSAP SF-WS2-DSAP Growth of 1L MoS2 flakes on customer substrates available upon request. Inquiry to info@2dlayer.com 1L WS 2 Single-side polished $299 sapphire 1L WS 2 Double-side polished $319 sapphire SF-WS2-SiO2 1L WS 2 SiO 2 /Si $299 SF-WS2-Quar 1L WS 2 Quartz $349 SF-WS2-GaN 1L WS 2 GaN $599 SF-WS2-Gold 1L WS 2 Gold $699 * PL efficiency is in the range of 1-5% SF-WS2-X Growth on customer substrates available upon request. Inquiry to info@2dlayer.com SF-MoSe2-SSAP 1L MoSe 2 Single-side polished $349 sapphire The size of each 1L MoSe 2 flakes may be SF-MoSe2-DSAP Double-side polished tuned in the range $369 sapphire of 2-20 micrometers SF-MoSe2-SiO2 1L MoSe 2 SiO 2 /Si $349 SF- MoSe2-X SF-WSe2-SSAP Growth on customer substrates available upon request. Inquiry to info@2dlayer.com 1L WSe 2 Single-side polished The size of each $349 sapphire flakes may be 8

10 SF-WSe2-DSAP 1L WSe 2 Double-side polished sapphire $369 tuned in the range of 2-20 SF-WSe2-SiO2 1L WSe 2 SiO 2 /Si $349 micrometers SF- WSe2-X Growth on customer substrates available upon request. Inquiry to info@2dlayer.com SF-MoTe2-SSAP 1L MoTe 2 Single-side polished sapphire Quote required SF-MoTe2-DSAP 1L MoTe 2 Double-side polished sapphire Quote required SF-MoTe2-SiO2 1L MoTe 2 SiO 2 /Si Quote required SF-WTe2-SSAP 1L WTe 2 Single-side polished sapphire Quote required SF-WTe2-DSAP 1L WTe 2 Double-side polished sapphire Quote required SF-WTe2-SiO2 1L WTe 2 SiO 2 /Si Quote required 9

11 Transferred 2D TMDC Films and Flakes Overview 2dlayer s transferred 2D transition metal dichalcogenide (TMDC) materials, including films and flakes, provides samples on versatile substrates. We also provide service to transfer 2D TMDC materials (including films and flakes) onto customers systems, such as device architectures or photonic cavities. The unique transfer process developed by 2dlayer may allow as-grown 2D materials to be perfectly transferred onto arbitrary substrates without compromising the crystalline quality and surface smoothness. Advantages Features ØVersatile substrates. * The transferred samples bear comparable Ø Compatible with arbitrary predefined systems. crystalline quality and surface smoothness to that of as-grown counterparts. * Typical transfer substrate is in size of around 1 x 1 cm. Other sizes are available upon request (pricing could be different). 10

12 The properties of 2D materials may be different on different substrates. Please send inquiry to to find out which substrate would be suitable for your research needs. List of Products Product No. Transferred Materials Substrates Price T-CF-(?)-MoS2- Single-polished (?)L MoS 2 films SSAP Sapphire $150 + as-grown price T-CF-(?)-MoS2-Ni (?)L MoS 2 films Ni foil $150 + as-grown price T-CF-(?)-MoS2- (?)L MoS 2 films Gold Gold $250 + as-grown price T-CF-(?)-MoS2- (?)L MoS 2 films GCarb Glassy carbon $150 + as-grown price T-CF-(?)-MoS2- (?)L MoS 2 films PDMS PDMS $150 + as-grown price T-CF-(?)-MoS2- (?)L MoS 2 films Teflon Teflon $150 + as-grown price T-CF-(?)-MoS2- (?)L MoS 2 films Quar Quartz $250 + as-grown price T-CF-(?)-MoS2- (?)L MoS 2 films HOPG HOPG $250 + as-grown price T-CF-(?)-MoS2- (?)L MoS 2 films BATI Barium Titanate $250 + as-grown price T-CF-(?)-MoS2- (?)L MoS 2 films TEM TEM grid $150 + as-grown price Ø? indicates the layer number of the film, which may be 1,2,3,4, 5, up to 10. Ø The transferred WS 2 films on these substrates are in similar price as the transferred MoS 2. Ø Transfer onto customer substrates available upon request. Inquiry to info@2dlayer.com T-SF-MoS2-SSAP 1L MoS 2 flakes Single-polished Sapphire $150 + as-grown price T-SF--MoS2-Ni 1L MoS 2 flakes Ni $150 + as-grown price T-SF-MoS2-Gold 1L MoS 2 flakes Gold $250 + as-grown price T-SF-MoS2-GCarb 1L MoS 2 flakes Glassy carbon $250 + as-grown price T-SF-MoS2-PDMS 1L MoS 2 flakes PDMS $150 + as-grown price T-SF-MoS2-Teflon 1L MoS 2 flakes Teflon $150 + as-grown price 11

13 T-SF-MoS2-Quar 1L MoS 2 flakes Quartz $150 + as-grown price T-SF-MoS2-HOPG 1L MoS 2 flakes HOPG $250 + as-grown price T-SF-MoS2-BATI 1L MoS 2 flakes Barium Titanate $250 + as-grown price T-SF-MoS2-TEM 1L MoS 2 flakes TEM grid $150 + as-grown price Ø The transferred flakes of other TMDC materials, including WS 2, WSe 2, MoSe 2 on these substrates are in similar price as the transferred MoS 2 flakes. Ø Transfer onto customer substrates available upon request. Inquiry to info@2dlayer.com 12

14 Suspended 2D TMDC Materials Overview 2Dlayer s suspended 2D transition metal dichalcogenide (TMDC) materials, including films and flakes, is designed to eliminate the effect of substrates and also to provide mechanical flexibility. These materials are made by transferring CVD-grown films or flakes onto substrates with prepatterned holes. Advantages ØElimination of substrate effects ØSuperior mechanical flexibility Features * Typical substrates are SiO 2 /Si (280 nm thick oxide) with pre-defined holes. The pre-defined holes are in various diameters, including 2, 5, 10, 15, and 20 micrometers. Other substrates such as quartz and sapphire are available upon request. * The depth of the holes is in the range of um. Other depth is available upon request. * PL efficiency of the suspended monolayers is one or two order magnitude higher than that of as-grown counterparts. suspended materials may also have larger exciton-exciton annihilation. 13

15 Compared to typical 2D TMDC materials that are supported by substrates, suspended 2D TMDC materials essentially eliminate the effects of substrates and thus provide opportunity to study the intrinsic properties of the materials. The suspended materials are particularly suitable for the studies of exciton dynamics and many-body excitonic interactions. Compared to the supported monolayers, the suspended monolayer may also have narrower emission peaks. 14

16 List of Products Product No. Suspended Materials Price S-CF-(?)-MoS2 (?)L MoS 2 films $300 + as-grown price S-CF-(?)-WS2 (?)L WS 2 films $300 + as-grown price S-SF-MoS2 1L MoS 2 flakes $300 + as-grown price S-SF-WS2 1L WS 2 flakes $300 + as-grown price S-SF-MoSe2 1L MoSe 2 flakes $300 + as-grown price S-SF-WSe2 1L WSe 2 flakes $300 + as-grown price S-SF-MoTe2 1L MoTe 2 flakes Quote required S-SF-WTe2 1L WTe 2 flakes Quote required Ø? indicates the layer number of the film, which may be 1,2,3,4, 5, up to 10. Ø Suspended materials with even larger suspended or other substrates are available upon requests. Inquiry to info@2dlayer.com 15

17 2D Heterostructures Overview 2Dlayer s 2D heterostructures consists of multiple dissimilar 2D materials stacked in the vertical directions. These include stacked transferred 2D transition metal dichalcogenide (TMDC) materials or 2D TMDC materials stacked with other 2D materials such as graphene and h-bn. From materials perspective, 2D heterostructures provide capabilities to engineer funcationality from the truly atomic level. Advantages ØHigher structural complexity. ØSophisticated control over dynamics of interfacial charge/spin transfer. Features * Typical Samples consist of two 2D materials manually stacked in the vertical direction. * Samples with more complicated structures, such three dissimilar materials, are available upon requests. * Substrates are usually single-side polished sapphire or SiO 2 /Si (with 280 nm thermal oxide) substrates. Other substrates are available upon requests. 16

18 The heterostructures provide capabilities to manipulate the dynamics of excitons that might not be easy to obtain at 2D materials. For instance, the separation of electrons and holes, which could be difficult due to the extraordinarily strong binding energy, may be very efficient through interlayer charge transfer in heterostructures. The efficiency of interlayer charge transfer is also not sensitive to the stacking of 2D materials, showing to be pretty much similar in both epitaxial or non-epitaxial stacking. List of Products Product No. Heterostructures Price Other specifications HT-MOS2-WS2 MoS 2 /WS 2 $799 HT-MoSe2-WSe2 MoSe 2 /WSe 2 $799 HT-MoS2-WSe2 MoS 2 /WSe 2 $799 HT-MoSe2-WS2 MoSe 2 /WS 2 $799 Stacked flakes. Flakes in size > 20 micrometers Stacked flakes, Flakes in size > 20 micrometers Stacked flakes, Flakes in size > 20 micrometers Stacked flakes, Flakes in size > 20 micrometers HT-MoS2-MoSe2 MoS 2 /MoSe 2 $799 Stacked flakes, Flakes in size > 20 micrometers 17

19 HT-WSe2-WS2 WSe 2 /WS 2 $799 Stacked flakes, Flakes in size > 20 micrometers HT-MoS2-graphene MoS 2 /graphene $899 TMDC flakes stacked on graphene films. Flakes in size > 20 micrometers HT-MoSe2-graphene MoSe 2 /graphene $899 TMDC flakes stacked on graphene films. Flakes in size > 20 micrometers HT-WS2-graphene WS 2 /graphene $899 TMDC flakes stacked on graphene films. Flakes in size > 20 micrometers HT-WSe2-graphene WSe 2 /graphene $899 TMDC flakes stacked on graphene films. Flakes in size > 20 micrometers HT-MoS2-h-BN MoS 2 / h-bn $799 TMDC flakes stacked on mechanically exfoliated h-bn flakes. Flakes in size > 20 micrometers HT-MoSe2- h-bn MoSe 2 / h-bn $799 TMDC flakes stacked on mechanically exfoliated h-bn flakes. Flakes in size > 20 micrometers HT-WS2- h-bn WS 2 / h-bn $799 TMDC flakes stacked on mechanically exfoliated h-bn flakes. Flakes in size > 20 micrometers HT-WSe2- h-bn WSe 2 / h-bn $799 TMDC flakes stacked on mechanically exfoliated h-bn flakes. Flakes in size > 20 micrometers HT-X-X Other 2D heterostructures with more structural complexity are available upon request. Inquiry to info@2dlayer.com 18

20 Specially Engineered 2D TMDC Materials Overview 2Dlayer s specially engineered 2D TMDC materials provide unique functionality. At this moment, we provide three types of specially engineered materials: 2D TMDC materials treated by proton or lithium ion, crumpled 2D TMDC materials, 2D TMDC light superabsorbers with enhanced absorption for narrowband or broadband incidence, and patterned 2D TMDC materials. Advantages ØHigher luminescence efficiency ØHigher interfacial thermal conductivity ØBetter catalytic activity Features * 2D TMDC materials treated by proton or lithium ions are transferred 2D TMDC materials treated by proton or lithium ions. These materials may show improved PL efficiency by one or two orders of magnitude compared to what observed prior to the treatement. Typical substrates are sapphire or SiO 2 /Si. The option of other substrates are available upon request. * 2D TMDC optical superabsorbers with enhanced absorption for narrowband or broadband incidence. These narrow-band absorbing materials are atomically thin (< 3 layers) TMDC films or flakes transferred onto the top of 1D or 2D dielectric grating structures, and may absorb > 75% for an narrowband incidence (bandwidth < 10nm). The absorption can be designed at any arbitrarily pre-specified wavelength beyond the bandgap. These broad-band absorbing materials are atomically thin (< 4 layers) TMDC films conformally deposited onto the top of 2D dielectric nanopillar structures, and may absorb > 75% for a broadband incidence (bandwidth > 400nm). The absorption can be designed at any 19

21 arbitrarily pre-specified wavelength beyond the bandgap. The dielectric materials may be GaN, sapphire, or other non-absorbing materials. Other substrates are available upon requests. * Crumpled 2D TMDC materials are made from CVD-grown continuous films, which are originally atomically smooth. These materials bear much higher surface area than the as-grown films. They are particularly suitable for the studies of energy storage, catalysis, and flexible devices. Typical substrates are plastics, but the option of other substrates are available upon request. 20

22 * Patterned 2D TMDC materials are made from CVD-grown continuous films, which are originally atomically smooth. These materials bear much higher surface area than the as-grown films. They are particularly suitable for the studies of energy storage, catalysis, and flexible devices. Typical substrates are plastics, but the option of other substrates are available upon request. List of Products Product No. Specially engineered materials Price Notes SE-H-CF-X Proton treated 2D TMDC films Quote The TMDC materials may be MoS2, WS2, MoSe2, WSe2. SE-H-SF-X Proton treated 2D TMDC flakes Quote The TMDC materials may be MoS2, WS2, MoSe2, WSe2. SE-Li-CF-X Lithium ion treated 2D TMDC films Quote The TMDC materials may be MoS2, WS2, MoSe2, WSe2. SE-Li-SF-X Lithium treated 2D TMDC flakes Quote The TMDC materials may be MoS2, WS2, MoSe2, WSe2. SE-C-CF-X Crumpled 2D TMDC films Quote The TMDC materials may be MoS2 or WS2 SE-NA-CF-X Narrow-band 2D TMDC The TMDC materials may be Quote superabsorbers MoS2, WS2, MoSe2, WSe2. SE-BA-CF-X Broad-band 2D TMDC The TMDC materials may be Quote superabsorbers MoS2, WS2, MoSe2, WSe2. 21

23 Services Overview 2Dlayer provides three types of service to better satisfy customers need: 1. Customer growth or transfer: 2dlayer may grow or transfer 2D TMDC materials on special substrates requested or provided by customers. For instance, 2dlayer may conformally deposited atomically thin 2D TMDC materials on patterned substrates. 2. Customer characterizations: 2dlayer may provide in-depth characterization to the 2D TMDC materials purchased by customers. This may include Raman/PL mapping, AFM, spectral elliposometry, contact angle, electrochemistry, and electronic measurement. 22

24 3. Customer fabrication and engineering : 2dlayer provide service to fabricate devices on the 2D TMDC materials purchased by customers. 2dlayer also provide service to engineer 2D TMDC materials, for instance, patterning 2D TMDC films. List of Products Product No. Specially engineered materials Price SV-GR-X Customer growth or transfer Quote required SV-TR-X Customer growth or transfer Quote required SV-CH-RamanPL-X Characterization: Raman/PL Mapping Quote required SV-CH-SE-X Characterization: Elliposometry Quote required SE-AR-X Characterization: spectral absorption/reflection Quote required SE-CA-X Characterization: contact angle Quote required SE-EC-X Characterization: electrochemistry Quote required SE-ELE-X Characterization: electronic measurement Quote required SE-FAB-X Customer fabrication and engineering Quote required 23

respectively. A plot of the Raman shift position as a function of layer number in Figure S1(c)

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