We investigate the performance of a microgap vacuum thermionic energy converter by
considering loss mechanisms due to the space-charge effect and interelectrode radiative …

An updated thermionic converter was established through the introduction of a graphene
anode and an optical reflector, significantly decreasing the irreversible losses inside the …

The characteristics of space charge limited (SCL) bipolar flow in a planar ion diode with
uniform initial velocity are studied in terms of the potential distribution. As a negative …

The space charge effect in various kinds of electron diodes has been extensively studied.
Typically, the coaxial cylindrical geometric model is used for practical applications, such as …

We present a comprehensive model to fully characterize the behavior of thermionic energy
conversion devices subject to constant heat flux inputs. Thermionic energy converters …

In this article, a sheet model is utilized to model and simulate hot electron transport
properties in vacuum gap. Based on this model, emitted electrons with constant initial …

A complete model of a thermionic generator has been developed in order to optimise the
technology for application in the solar thermal generation of electricity. Steady state current …

Research in thermionics has been reinvigorated recently by the advent of nanotechnology
and nanomaterials. Thermionic energy convertors are commonly modelled using the …

In this paper we considered in details of the energy exchanges that would take place when
concentrated solar energy is focused normally onto a thermionic emitter of area equal to the …

The direct conversion of heat to electricity is a prominent way of energy generation. This
could be achieved by direct energy converters such as thermoelectric and thermionic …