About
Investor/Entrepreneur/Intrapreneur with technical and business experience at leading…
Articles by John
Contributions
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Here's how you can choose the right venture capitalist to partner with.
In my experience, philosophical differences can be very difficult to discover in any new relationship, as they often manifest over time and only in certain situations. To make things even more challenging, different philosophies can exist within the same firm and can evolve over time. This is where you should do your homework and get to know not only the lead sponsor of your deal but also the other members of the investment committee. Take the time to speak with portfolio CEOs, executives, and board members to get different perspectives on a particular firm. Once you've collected and reflected on the data, trust your intuition and your gut to select the most like-minded partner for your entrepreneurial journey.
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Here's how you can choose the right venture capitalist to partner with.
A word of caution for first-time founders - choosing the right VC is not as simple as choosing the term sheet with the best valuation or terms. The path to a successful outcome is almost never a straight line, so look for VC firms that will be your go-to partner in good times and in bad. Focus on having a productive relationship with your investors, rather than trying to optimize the economics in a particular financing round.
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How do VCs find and choose startups for investment?
"It's not what you know, it's who you know..." Like in other parts of our personal and professional lives, our networks are oftentimes the most important factor in determining the outcome. If I'm an investor in very risk early-stage startups, one way I can derisk an investment opportunity is to have it come from someone I know and trust that has already qualified the opportunity as a fit for my fund. Knowing that an entrepreneur or management team has earned the confidence of someone in my close network, allows me to focus on other risky aspects of the investment, such as the size of the addressable commercial opportunity or the company's competitive advantage (i.e. "right to win").
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How can a term sheet be structured to provide a board seat for the venture capitalist?
Whether a board seat is justified for an incoming VC investor comes down to several factors: 1) How much ownership is the VC getting in the round? If the VC is going to own a significant minority stake (i.e. 10%+), a Board seat can make sense, 2) Does the VC bring operational/commercial insight and/or industry network to the table? The more helpful the VC can be to the management team, the more the company should want them to join the board, and 3) What are the interpersonal dynamics of the existing board members? The last thing anyone wants is a dysfunctional board with misaligned objectives. Size is less important here than how effective the board can be in collectively steering the company while actively contributing as individuals.
Activity
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I am so proud to share the incredible success Codetta Bio achieved at the AGBT - Advances in Genome Biology and Technology 2025 conference! We had…
I am so proud to share the incredible success Codetta Bio achieved at the AGBT - Advances in Genome Biology and Technology 2025 conference! We had…
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🔒 Cybersecurity in Manufacturing: A Growing Challenge 🔒 A new report from Omdia and Telstra highlights a critical issue—manufacturers could face…
🔒 Cybersecurity in Manufacturing: A Growing Challenge 🔒 A new report from Omdia and Telstra highlights a critical issue—manufacturers could face…
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🤖 Advancing AI Through Touch, Dexterity & Human-Robot Interaction For AI to truly understand and interact with the physical world, it must go beyond…
🤖 Advancing AI Through Touch, Dexterity & Human-Robot Interaction For AI to truly understand and interact with the physical world, it must go beyond…
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Experience
Education
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Massachusetts Institute of Technology
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Activities and Societies: MIT Ventureships -- Artaic (2007) Varsity Crew (1998-2002) Phi Delta Theta Fraternity Sigma Xi Engineering Society Eta Kappa Nu Honor Society Tau Beta Pi Honor Society MIT Sport TKD (2003 - Present)
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Volunteer Experience
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Trustee, Advancement Chair
The Wayside Inn Foundation
- Present 4 years 1 month
Arts and Culture
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Chairman of the Board of Trustees
Sierra and Tango Condominiums
- 4 years 6 months
329 condominium units, $2M operating budget, 7 member Board of Trustees
Publications
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Ultra-Bright, Highly Efficient, Low Roll-off Inverted Quantum-Dot Light Emitting Devices (QLEDs)
Society For Information Display, Digest of Technical Papers
We report an ultra-bright, highly efficient, low roll-off, inverted quantum dot-based red light emitting device (QLED) using solution-processed zinc oxide nanoparticles and cesium carbonate films as the electron injection and hole blocking layers, respectively. Record luminance of 165,000 Cd/m2 has been obtained at a current density of 1000 mA/cm2 with a low driving voltage of 5.8 V for deep red device with CIE coordinates of (0.69, 0.31).
Other authors -
QDs Generate Light for Next-Generation Displays
Photonics Spectra
Large color gamut and better color reproducibility will be highly desired features of displays in the near future. Quantum dots will be the down-conversion technology of choice, allowing LCD makers to cost-effectively reach and exceed 100 percent of the NTSC and Adobe RGB color standards while achieving maximum system efficiency.
Other authorsSee publication -
Quantum Dots: The Ultimate Down-Conversion Material for LCD Displays
Society for Information Display, Digest of Technical Papers
Assuming large color gamut and therefore better color reproducibility will be a highly desired feature of all displays as we look to the near future, we make the case in this paper that Quantum Dots (QDs) are currently the down-conversion technology of choice that will allow liquid crystal display (LCD) makers to cost-effectively reach and exceed 100% of the NTSC (National Television Standard Committee) standard while achieving maximum system efficiency. We will discuss in detail the numerous…
Assuming large color gamut and therefore better color reproducibility will be a highly desired feature of all displays as we look to the near future, we make the case in this paper that Quantum Dots (QDs) are currently the down-conversion technology of choice that will allow liquid crystal display (LCD) makers to cost-effectively reach and exceed 100% of the NTSC (National Television Standard Committee) standard while achieving maximum system efficiency. We will discuss in detail the numerous fundamental advantages of QDs over phosphors, along with their scientific origins, and make the case that QDs are the ultimate light generating material for next-generation displays.
Other authorsSee publication -
Large Area, Few-Layer Graphene Films on Arbitrary Substrates by Chemical Vapor Deposition
Nano Letters
In this work we present a low cost and scalable technique, via ambient pressure chemical vapor deposition (CVD) on polycrystalline Ni films, to fabricate large area (∼cm2) films of single- to few-layer graphene and to transfer the films to nonspecific substrates. These films consist of regions of 1 to ∼12 graphene layers. Single- or bilayer regions can be up to 20 μm in lateral size. The films are continuous over the entire area and can be patterned lithographically or by prepatterning the…
In this work we present a low cost and scalable technique, via ambient pressure chemical vapor deposition (CVD) on polycrystalline Ni films, to fabricate large area (∼cm2) films of single- to few-layer graphene and to transfer the films to nonspecific substrates. These films consist of regions of 1 to ∼12 graphene layers. Single- or bilayer regions can be up to 20 μm in lateral size. The films are continuous over the entire area and can be patterned lithographically or by prepatterning the underlying Ni film. The transparency, conductivity, and ambipolar transfer characteristics of the films suggest their potential as another materials candidate for electronics and opto-electronic applications.
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Heterojunction Photodetector consisting of Metal-oxide and colloidal Quantum-dot thin Films
Applied Physics Letters
We demonstrate a heterojunction photodetector of lateral geometry that utilizes an evaporated film of the hole-transporting molecular material N,N′N,N′-bis(3-methylphenyl)-N,N′N,N′-bis(phenyl)-9,9-spirobifluorene (spiro-TPD) as a charge transport layer and that is sensitized across visible wavelengths by a thin film of colloidal CdSe nanocrystal quantum dots (QDs). High photon-to-electron quantum conversion efficiencies are obtained at room temperature as a result of photoconductive gain. With…
We demonstrate a heterojunction photodetector of lateral geometry that utilizes an evaporated film of the hole-transporting molecular material N,N′N,N′-bis(3-methylphenyl)-N,N′N,N′-bis(phenyl)-9,9-spirobifluorene (spiro-TPD) as a charge transport layer and that is sensitized across visible wavelengths by a thin film of colloidal CdSe nanocrystal quantum dots (QDs). High photon-to-electron quantum conversion efficiencies are obtained at room temperature as a result of photoconductive gain. With an electric field of 3.0×105 V/cm3.0×105 V/cm applied across the electrodes, we measure the external quantum efficiency at the first QD absorption peak (at wavelength λ=590 nmλ=590 nm) to be 13%, corresponding to an internal quantum efficiency of approximately 80%. The operating mechanism of these devices is discussed, noting that the optical response is dominated by the QD absorption spectrum while the charge transport nearly exclusively takes place in the spiro-TPD.
Other authorsSee publication -
Lateral organic bilayer heterojunction photoconductors
Applied Physics Letters
We demonstrate a two-terminal, lateral organic bilayer photoconductor that generates an external quantum efficiency of (12±1)%(12±1)%, with an internal quantum efficiency of (140±2)%(140±2)% indicative of photon-to-electron conversion gain. The photoconductor incorporates a heterojunction between N,N′N,N′-bis(3-methylphenyl)-N,N′N,N′-diphenyl-1,1′1,1′-biphenyl-4,4′4,4′-diamine (TPD) and 3,4,9,10-perylenetetracarboxylic bisbenzimidazole (PTCBI). Excitons generated with photoexcitation of PTCBI…
We demonstrate a two-terminal, lateral organic bilayer photoconductor that generates an external quantum efficiency of (12±1)%(12±1)%, with an internal quantum efficiency of (140±2)%(140±2)% indicative of photon-to-electron conversion gain. The photoconductor incorporates a heterojunction between N,N′N,N′-bis(3-methylphenyl)-N,N′N,N′-diphenyl-1,1′1,1′-biphenyl-4,4′4,4′-diamine (TPD) and 3,4,9,10-perylenetetracarboxylic bisbenzimidazole (PTCBI). Excitons generated with photoexcitation of PTCBI dissociate at the PTCBI/TPD interface and raise the charge carrier concentration in TPD, increasing device conductance. The exposed top surface enables interaction with chemical analytes in the environment, motivating the use of the photoconductor as a chemical sensor that transduces chemical signals into amplified changes in the electrical response.
Other authorsSee publication -
Solid-State Chemosensitive Organic Devices for Vapor-Phase Detection
Springer, Berlin, Heidelberg
Patents
Languages
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French
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Mandarin
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Cantonese
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With the help of our sponsors The Steele Group, Farnam Street Financial, Inc., Baker Tilly US, and Comerica Bank, ven^x would like to invite…
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It was wonderful to host our heroes, Tom and Charlie Silva from This Old House!
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Bryan Hassell will be showcasing some powerful results of our analytical platform at this impactful conference.
Bryan Hassell will be showcasing some powerful results of our analytical platform at this impactful conference.
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I am so proud of SkyRiver Ventures' portfolio company, Material Evolution, for taking the next step to positively impact climate change with its…
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Thank you to everyone who helped make Saturday successful. This is just the tip of the iceberg. We have a lot more in store for 2025 to continue to…
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And that’s a wrap on S4x25! A big thank-you to everyone who stopped by booth #4 at the Startup Pavilion to connect with us. We loved sharing with…
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Just received customer data (unfortunately, it will be anonymous) to provide evidence to our claim in the video below. Stay tuned to our feed as we…
Just received customer data (unfortunately, it will be anonymous) to provide evidence to our claim in the video below. Stay tuned to our feed as we…
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S4x25 is in full swing—and so is Opscura! If you haven’t visited the Startup Pavilion, booth #4, make it your next destination. Here’s why: 🔒…
S4x25 is in full swing—and so is Opscura! If you haven’t visited the Startup Pavilion, booth #4, make it your next destination. Here’s why: 🔒…
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Enjoyed my time on this panel. Congratulations, Northeastern, on building such a beautiful facility. And thank you to Ted Werth for inviting me to…
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