Department of Bioelectronics, Ecole Nationale Superieure des Mines, CMP-EMSE, MOC, 13541 Gardanne, France.
Nat Commun. 2013;4:2133. doi: 10.1038/ncomms3133.
The development of transistors with high gain is essential for applications ranging from switching elements and drivers to transducers for chemical and biological sensing. Organic transistors have become well-established based on their distinct advantages, including ease of fabrication, synthetic freedom for chemical functionalization, and the ability to take on unique form factors. These devices, however, are largely viewed as belonging to the low-end of the performance spectrum. Here we present organic electrochemical transistors with a transconductance in the mS range, outperforming transistors from both traditional and emerging semiconductors. The transconductance of these devices remains fairly constant from DC up to a frequency of the order of 1 kHz, a value determined by the process of ion transport between the electrolyte and the channel. These devices, which continue to work even after being crumpled, are predicted to be highly relevant as transducers in biosensing applications.
高增益晶体管的发展对于从开关元件和驱动器到化学和生物传感换能器的各种应用都至关重要。基于其独特的优势，有机晶体管已经得到了广泛的应用，包括易于制造、化学功能化的合成自由度，以及能够采用独特的外形因素。然而，这些器件在很大程度上被认为属于性能谱的低端。在这里，我们提出了具有 mS 范围内跨导的有机电化学晶体管，其性能超过了传统和新兴半导体的晶体管。这些器件的跨导在直流到约 1 kHz 的频率范围内保持相当稳定，这一值由电解质和沟道之间的离子传输过程决定。这些器件即使在被揉皱后仍能继续工作，预计在生物传感应用中作为换能器具有很高的相关性。
