Table:
0
A
B
C
D
E
F
G
1
Material
Type
Geometry
Output voltage
Output power
Synthesis
Researched at
2
ZnO (n-type)
Wurtzite
D: ~100nm, L: 200~500nm
V P =~9 mV @ R=500MΩ
~0.5 pW per cycle (estimated)
CVD, hydrothermal process
Georgia Tech.
3
ZnO (p-type)
Wurtzite
D: ~50nm, L: ~600nm
V P =50~90 mV @ R=500MΩ
5~16.2 pW per cycle (calculated)
CVD
Georgia Tech.
4
ZnO-ZnS
Wurtzite (Heterostructure)
Not stated
V P =~6 mV @ R=500MΩ
~0.1 pW per cycle (calculated)
Thermal evaporation and etching
Georgia Tech.
5
GaN
Wurtzite
D: 25~70nm, L: 10~20 μm
V avg =~20 mV,V max =~0.35 V@ R=500MΩ
~0.8 pW per cycle (average, calculated)
CVD
Georgia Tech.
6
CdS
Wurtzite
D: ~100nm, L: 1 μm
V P =~3 mV
Not stated
PVD, Hydrothermal Process
Georgia Tech.
7
BaTiO 3
Pervoskite
D: ~280nm, L: ~15 μm
V P =~25 mV @ R=100MΩ
~0.3 aJ per cycle (stated)
High temperature chemical reaction
UIUC

Questions and formulas:
Question: Where was d: ~50nm, l: ~600nm geometry researched?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,C1="D: ~50nm, L: ~600nm"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,C2:C7="D: ~50nm, L: ~600nm"),7))
Level: medium
Question: How many materials are there for output power of ~0.1 pw per cycle (calculated)?
Formula: ROWS(UNIQUE(FILTER(A1, E1="~0.1 pW per cycle (calculated)")))
Formula2: ROWS(UNIQUE(FILTER(A2:A7, E2:E7="~0.1 pW per cycle (calculated)")))
Level: medium
Question: What is the output power for the v p =~3 mv output voltage?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,D1="V P =~3 mV"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,D2:D7="V P =~3 mV"),5))
Level: medium
Question: How many synthesis are there for 5~16.2 pw per cycle (calculated) output power?
Formula: ROWS(UNIQUE(FILTER(F1, E1="5~16.2 pW per cycle (calculated)")))
Formula2: ROWS(UNIQUE(FILTER(F2:F7, E2:E7="5~16.2 pW per cycle (calculated)")))
Level: medium
Question: Where was d: ~100nm, l: 1 μm geometry researched?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,C1="D: ~100nm, L: 1 μm"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,C2:C7="D: ~100nm, L: 1 μm"),7))
Level: medium
Question: Where was d: 25~70nm, l: 10~20 μm geometry researched?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,C1="D: 25~70nm, L: 10~20 μm"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G7,C2:C7="D: 25~70nm, L: 10~20 μm"),7))
Level: medium