An ambipolar light-emitting organic field-effect transistor (LE-OFET) based on a 1,4-Bis(4-methylstyryl)benzene (BSB-Me) single crystal was developed. The BSB-Me single crystal has very high photoluminescence quantum efficiency (ΦPL) of 89±2%, while ΦPL of the BSB-Me vapor-deposited film is limited to a much lower value of 54±2%. Ambipolar operation with successive blue electroluminescence from the FETs based on the BSB-Me single crystals was demonstrated by realizing nearly equal electron and hole mobilities [about 0.005 cm2/(V s)] with asymmetric gold–calcium contacts. Since BSB-Me single crystals can perform light amplification, the BSB-Me-based ambipolar LE-OFET is a promising candidate for future electrically driven organic blue-emitting solid-state lasers.

中文翻译：

---

使用 1,4-双（4-甲基苯乙烯基）苯有机单晶的蓝光双极场效应晶体管

开发了一种基于 1,4-双（4-甲基苯乙烯基）苯（BSB-Me）单晶的双极发光有机场效应晶体管（LE-OFET）。BSB-Me 单晶具有非常高的光致发光量子效率 (ΦPL)，为 89±2%，而 BSB-Me 气相沉积膜的 ΦPL 仅限于低得多的值 54±2%。通过实现几乎相等的电子和空穴迁移率 [约 0.005 cm2/(V s)] 与不对称金-钙接触，证明了基于 BSB-Me 单晶的 FET 连续蓝色电致发光的双极操作。由于 BSB-Me 单晶可以进行光放大，因此基于 BSB-Me 的双极 LE-OFET 是未来电驱动有机蓝色发光固态激光器的有希望的候选者。