= Solution
\b[Conducting organic materials can be attractive for flexible, lightweight and near-ambient heat harvesters; inorganic materials offer a wider established range of high-performance and high-temperature options.] The appropriate comparison includes device geometry and durability as well as peak $ZT$.
<Conducting polymers> can have low lattice <thermal conductivity>, be solution processed and accommodate mechanically compliant large-area devices. Their carrier concentration and ordering can be modified through doping and processing. Contact resistance, environmental stability, reproducibility and obtaining stable complementary p- and n-type materials can limit practical modules. Their organic character does not imply that they remain stable at high <temperature>.
Inorganic thermoelectrics can provide high <power> factors, <temperature> stability and mature transport data over application-specific ranges. Some compositions are brittle, dense, expensive or contain elements requiring careful environmental management; they are not all interchangeable. Interfaces, thermal cycling and interconnects can dominate device lifetime.
An experimental example of organic optimization controlled the oxidation level of a <conducting polymer> to balance transport and its low <thermal conductivity>, showing that organics are not categorically excluded from thermoelectric performance improvements.<Optimization of the thermoelectric figure of merit in PEDOT by Olga Bubnova and others>[Nature Materials10, pp.429–433, abstract: oxidation-level control and low thermal conductivity]{ref} Material selection should use measured properties across the actual <temperature> interval and the achievable thermal gradient, not a blanket organic-versus-inorganic ranking.
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