A joint US-China research effort finds that graphene can act as a semiconductor, but experts say graphene chips face immense manufacturing hurdles and costs
a few screenshots are attached (from Tianjin... [image] Byron Wan / @byron_wan : Press releases from Georgia Tech (L) and Tianjin University (R) — supposedly collaborators on the same graphene semiconductor breakthrough research: George Tech: Walter de Heer led the research teams in Atlanta and Tianjin. Tianjin University: Ma Lei led the research with NO... [image] Byron Wan / @byron_wan : Ma Lei (马雷), co-leader of the graphene semiconductor research (with Georgia Tech) and the Executive Director of Tianjin International Center for Nanoparticles & Nanosystems at Tianjin University, is apparently affiliated with a research institute under Bright Stone Innovation... [image] @chineseembinus : A Chinese-US research team consisting of members from Tianjin University and Georgia Institute of Technology has synthesised a functional semiconductor out of graphene for the first time, in a possible leap forward for superfast computing beyond silicon chips. In the field of... [image] Arnaud Bertrand / @rnaudbertrand : This is wonderfully ironic: a joint team of Chinese and American scientists “create world's first graphene semiconductor in feat that could transform computer chips” https://www.scmp.com/... After all the US efforts to a) prevent China access to the latest semiconductor tech and... Thomas Hon Wing Polin / @thonwingp : Amazing! Sino-US cooperation in a scientific breakthrough － and related to the strategic arena of semiconductors! Did someone in Washington fall asleep at the wheel? Given the potentially game-changing nature of graphene chips, perhaps someone in Beijing did too. “A... [image] Forums: Hacker News : Researchers Create First Functional Semiconductor Made from Graphene
Context & Ripple Effects
The result adds a new material candidate to the semiconductor research pipeline, but it arrives against a practical benchmark: [[a:968735|gallium nitride was being assessed as a silicon alternative compatible with conventional fabs]], whereas graphene is described here as far harder and costlier to manufacture into chips. It also sits within a Chinese chip-development agenda whose execution has faced scrutiny, including corruption probes targeting semiconductor executives.
First-order effects
- Georgia Tech and Tianjin University gain a research proof point that graphene can function as a semiconductor, with Walter de Heer and Ma Lei associated with the collaboration.
- The reported manufacturing difficulty and cost keep the finding in the research domain rather than creating an immediate production alternative to silicon chips.
Second-order effects
- Chipmakers and materials researchers have a clearer reason to compare graphene against alternatives that can fit established fabrication processes, including gallium nitride.
- For China, the result reinforces the value of research capability but does not resolve the yield, equipment, and scale-up constraints highlighted by SMIC's difficult path toward 7nm production.
Third-order effects
- If graphene devices can be manufactured economically, semiconductor competition could broaden from process-node scaling to control of new materials, device designs, and production know-how.
- Until then, the gap between a laboratory demonstration and reproducible, high-volume fabrication remains a central constraint on alternative semiconductor materials.
The trend: The story is one data point in the search for post-silicon semiconductor materials whose commercial value depends less on discovery than on manufacturable integration.